-PASS: gcc.c-torture/compile/asmgoto-2.c -O0 (test for excess errors)
+ERROR: gcc.c-torture/compile/asmgoto-2.c -O0 : no files matched glob pattern "lra1020113.c.[0-9][0-9][0-9]r.reload" for " dg-do 2 compile { target lra } "
Etc.
However, nvptx appears to support 'asm goto' with outputs, including the
new execution test case:
PASS: gcc.dg/pr107385.c execution test
Therefore, generally use new effective-target 'asm_goto_with_outputs' instead
of 'lra'. One exceptions is 'gcc.dg/pr110079.c', which doesn't use 'asm goto'
with outputs, and continues using effective-target 'lra', with special-casing
nvptx target, to avoid ERROR for 'lra'.
Thomas Schwinge [Thu, 7 Mar 2024 13:42:07 +0000 (14:42 +0100)]
GCN, nvptx: Errors during device probing are fatal
Currently, we silently disable libgomp GCN and nvptx plugins/devices in
presence of certain error conditions during device probing, thus typically
silently resorting to host-fallback execution. Make such errors fatal, similar
as for any other device access later on, so that we early and reliably notice
when things go wrong. (Keep just two cases non-fatal: (a) libgomp GCN or nvptx
plugins are available but 'libhsa-runtime64.so.1' or 'libcuda.so.1' are not,
and (b) those are available, but the corresponding devices are not.)
This resolves the issue that we've got execution test cases unexpectedly
PASSing, despite:
libgomp: GCN fatal error: Run-time could not be initialized
Runtime message: HSA_STATUS_ERROR_OUT_OF_RESOURCES: The runtime failed to allocate the necessary resources. This error may also occur when the core runtime library needs to spawn threads or create internal OS-specific events.
..., and therefore they were not offloaded to the GCN device, but ran in
host-fallback execution mode. What happend in that scenario is that in
'init_hsa_context' during the initial 'GOMP_OFFLOAD_get_num_devices' we ran
into 'HSA_STATUS_ERROR_OUT_OF_RESOURCES', but it wasn't fatal, but just
silently disabled the libgomp plugin/device.
Especially "entertaining" were cases where such unintended host-fallback
execution happened during effective-target checks like
'offload_device_available' (host-fallback execution there meaning: no offload
device available), but actual test cases then were running with an offload
device available, and therefore mis-configured.
include/
* cuda/cuda.h (CUresult): Add 'CUDA_ERROR_NO_DEVICE'.
libgomp/
* plugin/plugin-gcn.c (init_hsa_context): Add and handle
'bool probe' parameter. Adjust all users; errors during device
probing are fatal.
* plugin/plugin-nvptx.c (nvptx_get_num_devices): Aside from
'CUDA_ERROR_NO_DEVICE', errors during device probing are fatal.
Martin Jambor [Mon, 8 Apr 2024 16:53:23 +0000 (18:53 +0200)]
ICF&SRA: Make ICF and SRA agree on padding
PR 113359 shows that (at least with -fno-strict-aliasing) ICF can
unify two functions which copy an aggregate type of the same size but
then SRA, through its total scalarization, can copy the aggregate by
pieces, skipping paddding, but the padding was not the same in the two
original functions that ICF unified.
This patch enhances SRA with the ability to collect padding
information which then can be compared from within ICF. Unfortunately
SRA uses OPTION_SET_P when determining its limits, so ICF needs to
switch cfuns at least once to figure it out too.
gcc/ChangeLog:
2024-03-27 Martin Jambor <mjambor@suse.cz>
PR ipa/113359
* ipa-icf-gimple.h (func_checker): New members
safe_for_total_scalarization_p, m_total_scalarization_limit_known_p
and m_total_scalarization_limit.
(func_checker::func_checker): Initialize new member variables.
* ipa-icf-gimple.cc: Include tree-sra.h.
(func_checker::func_checker): Initialize new member variables.
(func_checker::safe_for_total_scalarization_p): New function.
(func_checker::compare_operand): Use the new function.
* tree-sra.h (sra_get_max_scalarization_size): Declare.
(sra_total_scalarization_would_copy_same_data_p): Likewise.
* tree-sra.cc (prepare_iteration_over_array_elts): New function.
(class sra_padding_collecting): New.
(sra_padding_collecting::record_padding): Likewise.
(scalarizable_type_p): Rename to totally_scalarizable_type_p. Add
ability to record padding when requested.
(totally_scalarize_subtree): Split out gathering information necessary
to iterate over array elements to prepare_iteration_over_array_elts.
Fix errornous early exit.
(analyze_all_variable_accesses): Adjust the call to
totally_scalarizable_type_p. Move determining of total scalariation
size limit...
(sra_get_max_scalarization_size): ...here.
(check_ts_and_push_padding_to_vec): New function.
(sra_total_scalarization_would_copy_same_data_p): Likewise.
Martin Jambor [Mon, 8 Apr 2024 16:53:23 +0000 (18:53 +0200)]
ipa: Compare jump functions in ICF (PR 113907)
In PR 113907 comment #58, Honza found a case where ICF thinks bodies
of functions are equivalent but becaise of difference in aliases in a
memory access, different aggregate jump functions are associated with
supposedly equivalent call statements. This patch adds a way to
compare jump functions and plugs it into ICF to avoid the issue.
gcc/ChangeLog:
2024-03-20 Martin Jambor <mjambor@suse.cz>
PR ipa/113907
* ipa-prop.h (class ipa_vr): Declare new overload of a member function
equal_p.
(ipa_jump_functions_equivalent_p): Declare.
* ipa-prop.cc (ipa_vr::equal_p): New function.
(ipa_agg_pass_through_jf_equivalent_p): Likewise.
(ipa_agg_jump_functions_equivalent_p): Likewise.
(ipa_jump_functions_equivalent_p): Likewise.
* ipa-cp.h (values_equal_for_ipcp_p): Declare.
* ipa-cp.cc (values_equal_for_ipcp_p): Make function public.
* ipa-icf-gimple.cc: Include alloc-pool.h, symbol-summary.h, sreal.h,
ipa-cp.h and ipa-prop.h.
(func_checker::compare_gimple_call): Comapre jump functions.
Jonathan Wakely [Tue, 2 Apr 2024 21:46:55 +0000 (22:46 +0100)]
libstdc++: Use char for _Utf8_view if char8_t isn't available [PR114519]
Instead of just omitting the definition of __unicode::_Utf8_view when
char8_t is disabled, we can make it use char instead.
libstdc++-v3/ChangeLog:
PR libstdc++/114519
* include/bits/unicode.h (_Utf8_view) [!__cpp_char8_t]: Define
using char instead of char8_t.
* testsuite/ext/unicode/view.cc: Use u8""sv literals to create
string views, instead of std::u8string_view.
Jonathan Wakely [Tue, 2 Apr 2024 20:22:01 +0000 (21:22 +0100)]
libstdc++: Combine two std::from_chars tests into one
We don't need separate tests for the C++17 and C++20 cases, we can just
have one test that uses __cpp_char8_t to adjust whether it tests char8_t
or not. This means the C++20 one doesn't fail if -fno-char8_t is used.
libstdc++-v3/ChangeLog:
* testsuite/20_util/from_chars/1_neg.cc: Add char8_t cases,
using a struct of that name if -fno-char8_t is active.
* testsuite/20_util/from_chars/1_c++20_neg.cc: Removed.
Not sure how this happend, but: svsudot is supposed to be expanded
as USDOT with the operands swapped. However, a thinko in the
expansion of svsudot meant that the arguments weren't in fact
swapped; the attempted swap was just a no-op. And the testcases
blithely accepted that.
gcc/
PR target/114607
* config/aarch64/aarch64-sve-builtins-base.cc
(svusdot_impl::expand): Fix botched attempt to swap the operands
for svsudot.
gcc/testsuite/
PR target/114607
* gcc.target/aarch64/sve/acle/asm/sudot_s32.c: New test.
Tatsuyuki Ishi [Fri, 29 Mar 2024 05:52:39 +0000 (14:52 +0900)]
RISC-V: Implement TLS Descriptors.
This implements TLS Descriptors (TLSDESC) as specified in [1].
The 4-instruction sequence is implemented as a single RTX insn for
simplicity, but this can be revisited later if instruction scheduling or
more flexible RA is desired.
The default remains to be the traditional TLS model, but can be configured
with --with-tls={trad,desc}. The choice can be revisited once toolchain
and libc support ships.
Jakub Jelinek [Mon, 8 Apr 2024 14:22:13 +0000 (16:22 +0200)]
s390: Fix s390_const_int_pool_entry_p and movdi peephole2 [PR114605]
The following testcase is miscompiled, because we have initially
a movti which loads the 0x3f8000003f800000ULL TImode constant
from constant pool. Later on we split it into a pair of DImode
loads. Now, for the first load (why just that?, though not stage4
material) we trigger the peephole2 which uses s390_const_int_pool_entry_p.
That function doesn't check at all the constant pool mode though, sees
the constant pool at that address has a CONST_INT value and just assumes
that is the value to return, which is especially wrong for big-endian,
if it is a DImode load from offset 0, it should be loading 0 rather than
0x3f8000003f800000ULL.
The following patch adds checks if we are extracing a MODE_INT mode,
if the constant pool has MODE_INT mode as well, punts if constant pool
has smaller mode size than the extraction one (then it would be UB),
if it has the same mode as before keeps using what it did before,
if constant pool has a larger mode than the one being extracted, uses
simplify_subreg. I'd have used avoid_constant_pool_reference
instead which can handle also offsets into the constant pool constants,
but it can't handle UNSPEC_LTREF.
Another thing is that once that is fixed, we ICE when we extract constant
like 0, ior insn predicate require non-0 constant. So, the patch also
fixes the peephole2 so that if either 32-bit half is zero, it uses a mere
load of the constant into register rather than a pair of such load and ior.
2024-04-08 Jakub Jelinek <jakub@redhat.com>
PR target/114605
* config/s390/s390.cc (s390_const_int_pool_entry_p): Punt
if mem doesn't have MODE_INT mode, or pool constant doesn't
have MODE_INT mode, or if pool constant mode is smaller than
mem mode. If mem mode is different from pool constant mode,
try to simplify subreg. If that doesn't work, punt, if it
does, use the simplified constant instead of the constant pool
constant.
* config/s390/s390.md (movdi from const pool peephole): If
either low or high 32-bit part is zero, just emit move insn
instead of move + ior.
The test for this intrinsic was failing silently and so it failed to
report the bug reported in 114521. This patch modifes the test to
report the result.
Signed-off-by: Jonathan Swinney <jswinney@amazon.com>
gcc/testsuite/
* gcc.target/aarch64/advsimd-intrinsics/vld1x4.c: Exit with a nonzero
code if the test fails.
Pan Li [Mon, 8 Apr 2024 04:33:05 +0000 (12:33 +0800)]
RISC-V: Refine the error msg for RVV intrinisc required ext
The RVV intrinisc API has sorts of required extension from both
the march or target attribute. It will have error message similar
to below:
built-in function '__riscv_vsetvl_e8m4\(vl\)' requires the V ISA extension
However, it is not accurate as we have many additional sub extenstion
besides v extension. For example, zvbb, zvbk, zvbc ... etc. This patch
would like to refine the error message with a friendly hint for the
required extension. For example as below:
When compile with march=rv64gc and target arch=+v, we will have error
message as below:
error: built-in function '__riscv_vclmul_vv_u64m1(op_1, op_2, vl)'
requires the 'zvbc' ISA extension
Then the end-user will get the point that the *zvbc* extension is missing
for the intrinisc API easily.
The below tests are passed for this patch.
* The riscv fully regression tests.
gcc/ChangeLog:
* config/riscv/riscv-vector-builtins-shapes.cc (build_one): Pass
required_ext arg when invoke add function.
(build_th_loadstore): Ditto.
(struct vcreate_def): Ditto.
(struct read_vl_def): Ditto.
(struct vlenb_def): Ditto.
* config/riscv/riscv-vector-builtins.cc (function_builder::add_function):
Introduce new arg required_ext to fill in the register func.
(function_builder::add_unique_function): Ditto.
(function_builder::add_overloaded_function): Ditto.
(expand_builtin): Leverage required_extensions_specified to
check if the required extension is provided.
* config/riscv/riscv-vector-builtins.h (reqired_ext_to_isa_name): New
func impl to convert the required_ext enum to the extension name.
(required_extensions_specified): New func impl to predicate if
the required extension is well feeded.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-7.c: Adjust
the error message for v extension.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-8.c: Ditto.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-1.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-10.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-2.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-3.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-4.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-5.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-6.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-7.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-8.c: New test.
* gcc.target/riscv/rvv/base/intrinsic_required_ext-9.c: New test.
Pan Li [Tue, 2 Apr 2024 14:22:29 +0000 (22:22 +0800)]
RISC-V: Allow RVV intrinsic for more function target
In previous, we allowed the target(("arch=+v")) for a function with
rv64gc build. This patch would like to support more arch options as
below:
* zve32x
* zve32f
* zve64x
* zve64f
* zve64d
* zvfhmin
* zvfh
* zvk*
* zvbb
For example, we have sample code as below.
vfloat32m1_t
__attribute__((target("arch=+zve64f")))
test_9 (vfloat32m1_t a, vfloat32m1_t b, size_t vl)
{
return __riscv_vfadd_vv_f32m1 (a, b, vl);
}
It will generate the asm code when build with -O3 -march=rv64gc
test_9:
vsetvli zero,a0,e32,m1,ta,ma
vfadd.vv v8,v8,v9
ret
Meanwhile, this patch introduces more error handling for the target
attribute. Take arch=+zve32x with vfloat32m1_t will have error message
"'vfloat32m1_t' requires the zve32f, zve64f or zve64d ISA extension".
And take arch=+zve32f with vfloat16m1_t will have error message
"'vfloat16m1_t' requires the zvfhmin or zvfh ISA extension".
By default, all the RVV types includes the cmdline march will be
registered when include the riscv_vector.h. And we have sorts of check
during args and return types.
Below test are passed for this patch:
* The riscv fully regression test.
gcc/ChangeLog:
* config/riscv/riscv-c.cc (struct pragma_intrinsic_flags): New
struct to hold all intrinisc related flags.
(riscv_pragma_intrinsic_flags_pollute): New func to pollute
the intrinsic flags and backup original flags.
(riscv_pragma_intrinsic_flags_restore): New func to restore
the flags from the backup intrinsic flags.
(riscv_pragma_intrinsic): Pollute the flags and register all
possible builtin types and functions, then restore and reinit.
* config/riscv/riscv-protos.h (reinit_builtins): New func
decl to reinit after flags pollution.
(riscv_option_override): New extern func decl.
* config/riscv/riscv-vector-builtins.cc (register_builtin_types_on_null):
New func to register builtin types if null.
(DEF_RVV_TYPE): Ditto.
(DEF_RVV_TUPLE_TYPE): Ditto.
(reinit_builtins): New func impl to reinit after flags pollution.
(expand_builtin): Return
target rtx after error_at.
* config/riscv/riscv.cc (riscv_vector_int_type_p): New predicate
func to tell one tree type is integer or not.
(riscv_vector_float_type_p): New predicate func to tell one tree
type is float or not.
(riscv_vector_element_bitsize): New func to get the element bitsize
of a vector tree type.
(riscv_vector_required_min_vlen): New func to get the required min vlen
of a vector tree type.
(riscv_validate_vector_type): New func to validate the tree type
is valid on flags.
(riscv_return_value_is_vector_type_p): Leverage the func
riscv_validate_vector_type to do the tree type validation.
(riscv_arguments_is_vector_type_p): Ditto.
(riscv_override_options_internal): Ditto.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/pr109479-1.c: Adjust the existing test
scenarios and add new error check tests.
* gcc.target/riscv/rvv/base/pr109479-2.c: Ditto.
* gcc.target/riscv/rvv/base/pr109479-3.c: Ditto.
* gcc.target/riscv/rvv/base/pr109479-4.c: Diito.
* gcc.target/riscv/rvv/base/pr109479-5.c: Diito.
* gcc.target/riscv/rvv/base/pr109479-6.c: Diito.
* gcc.target/riscv/rvv/base/user-10.c: Ditto.
* gcc.target/riscv/rvv/base/user-12.c: Ditto.
* gcc.target/riscv/rvv/base/user-13.c: Ditto.
* gcc.target/riscv/rvv/base/user-14.c: Ditto.
* gcc.target/riscv/rvv/base/user-15.c: Ditto.
* gcc.target/riscv/rvv/base/user-2.c: Ditto.
* gcc.target/riscv/rvv/base/user-3.c: Ditto.
* gcc.target/riscv/rvv/base/user-5.c: Ditto.
* gcc.target/riscv/rvv/base/user-6.c: Ditto.
* gcc.target/riscv/rvv/base/user-9.c: Ditto.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-10.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-11.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-12.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-13.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-14.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-15.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-16.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-17.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-18.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-19.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-20.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-21.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-22.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-23.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-24.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-25.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-26.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-27.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-28.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-29.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-30.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-31.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-32.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-33.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-34.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-35.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-36.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-37.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-38.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-39.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-40.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-41.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-42.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-43.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-44.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-45.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-46.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-47.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-48.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-49.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-50.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-51.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-52.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-53.c: New test.
* gcc.target/riscv/rvv/base/target_attribute_v_with_intrinsic-9.c: New test.
LoongArch: Set default alignment for functions jumps and loops [PR112919].
Xi Ruoyao set the alignment rules under LA464 in commit r14-1839,
but the macro ASM_OUTPUT_ALIGN_WITH_NOP was removed in R14-4674,
which affected the alignment rules.
So I set different aligns on LA464 and LA664 again to test the
performance of spec2006, and modify the alignment based on the test
results.
gcc/ChangeLog:
PR target/112919
* config/loongarch/loongarch-def.cc (la664_align): Newly defined
function that sets alignment rules under the LA664 microarchitecture.
* config/loongarch/loongarch-opts.cc
(loongarch_target_option_override): If not optimizing for size, set
the default alignment to what the target wants.
* config/loongarch/loongarch-tune.h (struct loongarch_align): Add
new member variables jump and loop.
Gaius Mulley [Sat, 6 Apr 2024 22:45:35 +0000 (23:45 +0100)]
PR modula2/114617 gm2 unable to resolve const expressions using relop ICE
This patch allows cc1gm2 to resolve constant expressions which use
relative operators. Previous to the patch the result of a relop
was stored in a temporary variable set by an if then else quadruple
sequence. This patch marks a const expression in the quadruples
and then reduces this sequence of quadruples into a single
assignment to an internal constant.
gcc/m2/ChangeLog:
PR modula2/114617
* gm2-compiler/M2GenGCC.mod (CodeStatememt): Add quad trace.
(ResolveConstantExpressions): Add parameter p to FoldIfLess,
FoldIfGre, FoldIfLessEqu, FoldIfGreEqu, FoldIfEqu, FoldIfNotEqu,
FoldIfIn and FoldIfNotIn.
(CodeInline): Add constExpr variable and pass it to GetQuadOtok.
(CodeReturnValue): Ditto.
(CodeParam): Ditto.
(FoldStringLength): Ditto.
(FoldStringConvertM2nul): Ditto.
(FoldStringConvertCnul): Ditto.
(DeclaredOperandsBecomes): Ditto.
(TypeCheckBecomes): Ditto.
(PerformFoldBecomes): Ditto.
(CodeBecomes): Ditto.
(CheckElementSetTypes): Ditto.
(CodeBinarySet): Ditto.
(PerformCodeIfLess): Ditto.
(PerformCodeIfGre): Ditto.
(PerformCodeIfLessEqu): Ditto.
(PerformCodeIfGreEqu): Ditto.
(PerformCodeIfEqu): Ditto.
(PerformCodeIfNotEqu): Ditto.
(IsValidExpressionRelOp): Ditto.
(PerformCodeIfIn): Ditto.
(PerformCodeIfNotIn): Ditto.
(CodeXIndr): Ditto.
(QuadCondition): New procedure function.
(IsBooleanRelOpPattern): Ditto.
(FoldBooleanRelopPattern): Ditto.
(FoldIfGre): Check for boolean relop constant expression and
add parameter p.
(FoldIfLessEqu): Ditto.
(FoldIfIn): Ditto.
(FoldIfEqu): Ditto.
(FoldIfNotIn): Ditto.
(FoldIfGreEqu): New procedure.
(FoldIfNotEqu): Ditto.
* gm2-compiler/M2Optimize.mod (ReduceBranch): Add constExpr
variable and pass it to GetQuadOtok.
* gm2-compiler/M2Quads.def (IsBecomes): New procedure function.
(IsDummy): Ditto.
(IsQuadConstExpr): Ditto.
(SetQuadConstExpr): Ditto.
(GetQuadDest): New procedure.
(GetQuadOp1): New procedure.
(GetQuadOp2): New procedure.
(GetQuadOp3): New procedure.
(GetQuadOtok): New procedure.
(GetQuadOTypetok): New procedure.
(PutQuadOtok): New procedure.
(IsInConstParameters): New procedure function.
* gm2-compiler/M2Quads.mod (IsBecomes): New procedure function.
(IsDummy): Ditto.
(IsQuadConstExpr): Ditto.
(SetQuadConstExpr): Ditto.
(GetQuadDest): New procedure.
(GetQuadOp1): New procedure.
(GetQuadOp2): New procedure.
(GetQuadOp3): New procedure.
(GetQuadOtok): New procedure.
(GetQuadOTypetok): New procedure.
(PutQuadOtok): New procedure.
(IsInConstParameters): New procedure function.
(ConstStack): Remove to ...
(ConstExprStack): ... this.
(ConstParamStack): New variable and initialize.
(QuadFrame): New field ConstExpr.
(GetQuadOtok): Add parameter constExpr and assign.
(PutQuadOtok): Add constExpr parameter and assign.
(PutQuadOType): Ditto.
(GetQuadOTypetok): Ditto.
(EraseQuad): Assign ConstExpr to FALSE.
(FoldSubrange): Set ConstExpr to FALSE in BecomesOp.
(PushInConstParameters): New procedure.
(PopInConstParameters): New procedure.
(IsInConstParameters): New procedure function.
* gm2-compiler/M2SymInit.mod (IssueConditional): Add
constExpr boolean variable.
(CheckReadBeforeInitQuad): Ditto.
(trashParam): Ditto.
* gm2-compiler/P3Build.bnf (ConstExpression): Call
PushInConstExpression and PopInConstExpression.
(ConstSetOrQualidentOrFunction): Call
PushInConstParameters and PopInConstParameters.
* gm2-compiler/PCBuild.bnf (ConstExpression): Call
PushInConstExpression and PopInConstExpression.
* gm2-compiler/PHBuild.bnf: Ditto
* gm2-gcc/m2expr.cc (m2expr_BuildCondIfExpression): New
function.
* gm2-gcc/m2expr.def (BuildCondIfExpression): New prototype.
* gm2-gcc/m2expr.h (m2expr_BuildCondIfExpression): New function.
gcc/testsuite/ChangeLog:
PR modula2/114617
* gm2/iso/const/pass/iso-const-pass.exp: New test.
Jerry DeLisle [Sat, 6 Apr 2024 02:25:13 +0000 (19:25 -0700)]
libfortran: Fix handling of formatted separators.
PR libfortran/114304
PR libfortran/105473
libgfortran/ChangeLog:
* io/list_read.c (eat_separator): Add logic to handle spaces
preceding a comma or semicolon such that that a 'null' read
occurs without error at the end of comma or semicolon
terminated input lines. Add check and error message for ';'.
(list_formatted_read_scalar): Treat comma as a decimal point
when specified by the decimal mode on the first item.
gcc/testsuite/ChangeLog:
* gfortran.dg/pr105473.f90: Modify to verify new error message.
* gfortran.dg/pr114304.f90: New test.
H.J. Lu [Fri, 5 Apr 2024 15:56:15 +0000 (08:56 -0700)]
x86: Use explicit shift count in double-precision shifts
Don't use implicit shift count in double-precision shifts in AT&T syntax
since they aren't in Intel SDM. Keep the 's' modifier for backward
compatibility with inline asm statements.
When a function is tree-inlined, copy the condition -> expression mapping
from the inlined function into the caller, shifted so uids are not
mixed. Tree inlining was always problematic under condition coverage -
either through a nullptr dereference (triggered by the test case), or
through quietly mixing caller conditions with the callee conditions.
The __sigsetjmp test was added as a regression test in an early
iteration of the MC/DC support, as it caused an internal compiler error.
This was triggered by a code path which did not make it through to the
final revision. Since this test really only worked on systems with
__sigsetjmp, and does not serve a purpose any more it can be removed.
David Malcolm [Fri, 5 Apr 2024 18:49:53 +0000 (14:49 -0400)]
analyzer: respect GCC_COLORS in out-of-bounds diagrams [PR114588]
gcc/analyzer/ChangeLog:
PR analyzer/114588
* access-diagram.cc (access_diagram_impl::access_diagram_impl):
Replace hardcoded colors for valid_style and invalid_style with
calls to text_art::get_style_from_color_cap_name.
gcc/ChangeLog:
PR analyzer/114588
* diagnostic-color.cc (color_dict): Add "valid" and "invalid" as
color capability names.
* doc/invoke.texi: Document them in description of GCC_COLORS.
* text-art/style.cc: Include "diagnostic-color.h".
(text_art::get_style_from_color_cap_name): New.
* text-art/types.h (get_style_from_color_cap_name): New decl.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
Martin Jambor [Fri, 5 Apr 2024 16:18:39 +0000 (18:18 +0200)]
ipa: Force args obtined through pass-through maps to the expected type (PR 113964)
Interactions of IPA-CP and IPA-SRA on the same data is a rather big
source of issues, I'm afraid. PR 113964 is a situation where IPA-CP
propagates an unsigned short in a union parameter into a function
which itself calls a different function which has a same union
parameter and both these union parameters are split with IPA-SRA. The
leaf function however uses a signed short member of the union.
In the calling function, we get the unsigned constant as the
replacement for the union and it is then passed in the call without
any type compatibility checks. Apparently on riscv64 it matters
whether the parameter is signed or unsigned short and so the leaf
function can see different values.
Fixed by using useless_type_conversion_p at the appropriate place and
if it fails, use force_value_to type as elsewhere in similar
situations.
gcc/ChangeLog:
2024-04-04 Martin Jambor <mjambor@suse.cz>
PR ipa/113964
* ipa-param-manipulation.cc (ipa_param_adjustments::modify_call):
Force values obtined through pass-through maps to the expected
split type.
gcc/testsuite/ChangeLog:
2024-04-04 Patrick O'Neill <patrick@rivosinc.com>
Martin Jambor <mjambor@suse.cz>
Mark Wielaard [Fri, 5 Apr 2024 15:22:16 +0000 (17:22 +0200)]
Regenerate common.opt.urls
The new support for gcov modified condition/decision coverage
introduced two new flags for gcc, -Wcoverage-too-many-conditions and
-fcondition-coverage. But didn't regenerate the gcc/common.opt.urls.
But this is only valid if pa.T is a ptrue. In other cases, the
original would set inactive elements of zd.T to 0, whereas the
combined form would copy elements from zc.T.
gcc/
PR target/114603
* config/aarch64/aarch64-sve.md (@aarch64_pred_cnot<mode>): Replace
with...
(@aarch64_ptrue_cnot<mode>): ...this, requiring operand 1 to be
a ptrue.
(*cnot<mode>): Require operand 1 to be a ptrue.
* config/aarch64/aarch64-sve-builtins-base.cc (svcnot_impl::expand):
Use aarch64_ptrue_cnot<mode> for _x operations that are predicated
with a ptrue. Represent other _x operations as fully-defined _m
operations.
gcc/testsuite/
PR target/114603
* gcc.target/aarch64/sve/acle/general/cnot_1.c: New test.
Marek Polacek [Tue, 2 Apr 2024 16:59:38 +0000 (12:59 -0400)]
c++: constexpr error with fn redecl in local scope [PR111132]
We evaluate constexpr functions on the original, pre-genericization bodies.
That means that the function body we're evaluating will not have gone
through cp_genericize_r's "Map block scope extern declarations to visible
declarations with the same name and type in outer scopes if any". Here:
it means that we:
1) register_constexpr_fundef (#1)
2) cp_genericize (#1)
nothing interesting happens
3) register_constexpr_fundef (foo)
does copy_fn, so we have two copies of the BIND_EXPR
4) cp_genericize (foo)
this remaps #2 to #1, but only on one copy of the BIND_EXPR
5) retrieve_constexpr_fundef (foo)
we find it, no problem
6) retrieve_constexpr_fundef (#2)
and here #2 isn't found in constexpr_fundef_table, because
we're working on the BIND_EXPR copy where #2 wasn't mapped to #1
so we fail. We've only registered #1.
It should work to use DECL_LOCAL_DECL_ALIAS (which used to be
extern_decl_map). We evaluate constexpr functions on pre-cp_fold
bodies to avoid diagnostic problems, but the remapping I'm proposing
should not interfere with diagnostics.
This is not a problem for a global scope redeclaration; there we go
through duplicate_decls which keeps the DECL_UID:
DECL_UID (olddecl) = olddecl_uid;
and DECL_UID is what constexpr_fundef_hasher::hash uses.
PR c++/111132
gcc/cp/ChangeLog:
* constexpr.cc (get_function_named_in_call): Use
cp_get_fndecl_from_callee.
* cvt.cc (cp_get_fndecl_from_callee): If there's a
DECL_LOCAL_DECL_ALIAS, use it.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/constexpr-redeclaration3.C: New test.
* g++.dg/cpp0x/constexpr-redeclaration4.C: New test.
Jakub Jelinek [Fri, 5 Apr 2024 12:56:14 +0000 (14:56 +0200)]
vect: Don't clear base_misaligned in update_epilogue_loop_vinfo [PR114566]
The following testcase is miscompiled, because in the vectorized
epilogue the vectorizer assumes it can use aligned loads/stores
(if the base decl gets alignment increased), but it actually doesn't
increase that.
This is because r10-4203-g97c1460367 added the hunk following
patch removes. The explanation feels reasonable, but actually it
is not true as the testcase proves.
The thing is, we vectorize the main loop with 64-byte vectors
and the corresponding data refs have base_alignment 16 (the
a array has DECL_ALIGN 128) and offset_alignment 32. Now, because
of the offset_alignment 32 rather than 64, we need to use unaligned
loads/stores in the main loop (and ditto in the first load/store
in vectorized epilogue). But the second load/store in the vectorized
epilogue uses only 32-byte vectors and because it is a multiple
of offset_alignment, it checks if we could increase alignment of the
a VAR_DECL, the function returns true, sets base_misaligned = true
and says the access is then aligned.
But when update_epilogue_loop_vinfo clears base_misaligned with the
assumption that the var had to have the alignment increased already,
the update of DECL_ALIGN doesn't happen anymore.
Now, I'd think this base_alignment = false was needed before r10-4030-gd2db7f7901 change was committed where it incorrectly
overwrote DECL_ALIGN even if it was already larger, rather than
just always increasing it. But with that change in, it doesn't
make sense to me anymore.
Note, the testcase is latent on the trunk, but reproduces on the 13
branch.
[-PASS:-]{+FAIL:+} libgomp.c/reverse-offload-sm30.c at line 15 (test for warnings, line )
[-PASS:-]{+FAIL:+} libgomp.c/reverse-offload-sm30.c (test for excess errors)
libgomp/
* testsuite/libgomp.c/reverse-offload-sm30.c: Set 'GCC_COLORS' to the empty string.
Jakub Jelinek [Fri, 5 Apr 2024 09:05:01 +0000 (11:05 +0200)]
testsuite: Fix up error on gcov1.d
On Fri, Feb 23, 2024 at 12:18:00PM +0100, Jørgen Kvalsvik wrote:
> This is a mostly straight port from the gcov-19.c tests from the C test
> suite. The only notable differences from C to D are that D flips the
> true/false outcomes for loop headers, and the D front end ties loop and
> ternary conditions to slightly different locus.
>
> The test for >64 conditions warning is disabled as it either needs
> support from the testing framework or a something similar to #pragma GCC
> diagnostic push to not cause a test failure from detecting a warning.
>
> gcc/testsuite/ChangeLog:
>
> * gdc.dg/gcov.exp: New test.
> * gdc.dg/gcov1.d: New test.
Unfortunately, this doesn't work.
I see
PASS: gdc.dg/gcov1.d execution test
ERROR: (DejaGnu) proc "run-gcov conditions { --conditions gcov1.d }" does not exist.
The error code is TCL LOOKUP COMMAND run-gcov
The info on the error is:
invalid command name "run-gcov"
while executing
"::tcl_unknown run-gcov conditions { --conditions gcov1.d }"
("uplevel" body line 1)
invoked from within
"uplevel 1 ::tcl_unknown $args"
ERROR: gdc.dg/gcov1.d : error executing dg-final: invalid command name "run-gcov"
both on x86_64-linux and i686-linux.
The problem is that the test hasn't been added to a new directory, but
to a directory already covered by a different *.exp file - dg.exp.
Now, usually either one has a test directory like gcc.misc-tests where
there are many *.exp files but each *.exp file globs for its own tests,
or there is one *.exp per directory and covers everything in there.
By having both dg.exp and gcov.exp in the same directory with dg.exp
covering all *.d files in there and gcov gcov*.d in there, the gcov*.d
tests are tested twice, once using the dg.exp driver and once using gcov.exp
driver. With the latter, they do work properly, with the former they don't
because gcov.exp lib file isn't loaded and so run-gcov isn't available.
The following patch fixes that similarly how g++.dg/modules/modules.exp,
gcc.target/s390/s390.exp or gcc.target/i386/i386.exp deal with that,
by pruning some tests based on glob patterns from the list.
2024-04-05 Jakub Jelinek <jakub@redhat.com>
* gdc.dg/dg.exp: Prune gcov*.d from the list of tests to run.
* gdc.dg/gcov.exp: Update copyright years.
Jakub Jelinek [Fri, 5 Apr 2024 07:31:28 +0000 (09:31 +0200)]
c++: Fix ICE with weird copy assignment operator [PR114572]
While ctors/dtors don't return anything (undeclared void or this pointer
on arm) and copy assignment operators normally return a reference to *this,
it isn't invalid to return uselessly some class object which might need
destructing, but the OpenMP clause handling code wasn't expecting that.
The following patch fixes that.
2024-04-05 Jakub Jelinek <jakub@redhat.com>
PR c++/114572
* cp-gimplify.cc (cxx_omp_clause_apply_fn): Call build_cplus_new
on build_call_a result if it has class type.
testsuite/gcc.target/cris/pr93372-2.c: Handle xpass from combine improvement
After r14-9692-g839bc42772ba7a, a sequence that actually
looks optimal is now emitted, observed at r14-9788-gb7bd2ec73d66f7. This caused an XPASS for this
test. While adjusting the test, better also guard it
against regressions by checking that there are no redundant
move insns.
That's the only test that's improved to the point of
affecting test-patterns. E.g. pr93372-5.c (which references
pr93372-2.c) is also improved, though it retains a redundant
compare insn. (PR 93372 was about regressions from the cc0
representation; not further improvement like here, thus it's
not tagged. Though, I did not double-check whether this
actually *was* a regression from cc0.)
* gcc.target/cris/pr93372-2.c: Tweak scan-assembler
checks to cover recent combine improvement.
Wilco Dijkstra [Tue, 26 Mar 2024 15:08:02 +0000 (15:08 +0000)]
libatomic: Fix build for --disable-gnu-indirect-function [PR113986]
Fix libatomic build to support --disable-gnu-indirect-function on AArch64.
Always build atomic_16.S, add aliases to the __atomic_ functions if !HAVE_IFUNC.
Include auto-config.h in atomic_16.S to avoid having to pass defines via
makefiles. Fix build if HWCAP_ATOMICS/CPUID are not defined.
libatomic:
PR target/113986
* Makefile.in: Regenerated.
* Makefile.am: Make atomic_16.S not depend on HAVE_IFUNC.
Remove predefine of HAVE_FEAT_LSE128.
* acinclude.m4: Remove ARCH_AARCH64_HAVE_LSE128.
* configure: Regenerated.
* config/linux/aarch64/atomic_16.S: Add __atomic_ alias if !HAVE_IFUNC.
* config/linux/aarch64/host-config.h: Correctly handle !HAVE_IFUNC.
Add defines for HWCAP_ATOMICS and HWCAP_CPUID.
Martin Jambor [Thu, 4 Apr 2024 20:46:16 +0000 (22:46 +0200)]
ipa: Avoid duplicate replacements in IPA-SRA transformation phase
When the analysis part of IPA-SRA figures out that it would split out
a scalar part of an aggregate which is known by IPA-CP to contain a
known constant, it skips it knowing that the transformation part looks
at IPA-CP aggregate results too and does the right thing (which can
include doing the propagation in GIMPLE because that is the last
moment the parameter exists).
However, when IPA-SRA wants to split out a smaller aggregate out
of an aggregate, which happens to be of the same size as a known
scalar constant at the same offset, the transformation bit fails to
recognize the situation, tries to do both splitting and constant
propagation and in PR 111571 testcase creates a nonsensical call
statement on which the call redirection then ICEs.
Fixed by making sure we don't try to do two replacements of the same
part of the same parameter.
The look-up among replacements requires these are sorted and this
patch just sorts them if they are not already sorted before each new
look-up. The worst number of sortings that can happen is number of
parameters which are both split and have aggregate constants times
param_ipa_max_agg_items (default 16). I don't think complicating the
source code to optimize for this unlikely case is worth it but if need
be, it can of course be done.
For the test case, the insn scheduler (working for live range
shrinkage) moves insns modifying stack memory before an insn reserving
the stack memory. Comments in the patch contains more details about
the problem and its solution.
gcc/ChangeLog:
PR rtl-optimization/114415
* sched-deps.cc (add_insn_mem_dependence): Add memory check for mem argument.
(sched_analyze_1): Treat stack pointer modification as memory read.
(sched_analyze_2, sched_analyze_insn): Add memory guard for processing pending_read_mems.
* sched-int.h (deps_desc): Add comment to pending_read_mems.
gcc/testsuite/ChangeLog:
PR rtl-optimization/114415
* gcc.target/i386/pr114415.c: New test.
This is a mostly straight port from the gcov-19.c tests from the C test
suite. The only notable differences from C to D are that D flips the
true/false outcomes for loop headers, and the D front end ties loop and
ternary conditions to slightly different locus.
The test for >64 conditions warning is disabled as it either needs
support from the testing framework or a something similar to #pragma GCC
diagnostic push to not cause a test failure from detecting a warning.
gcc/testsuite/ChangeLog:
* gdc.dg/gcov.exp: New test.
* gdc.dg/gcov1.d: New test.
This patch adds support in gcc+gcov for modified condition/decision
coverage (MC/DC) with the -fcondition-coverage flag. MC/DC is a type of
test/code coverage and it is particularly important for safety-critical
applicaitons in industries like aviation and automotive. Notably, MC/DC
is required or recommended by:
* DO-178C for the most critical software (Level A) in avionics.
* IEC 61508 for SIL 4.
* ISO 26262-6 for ASIL D.
From the SQLite webpage:
Two methods of measuring test coverage were described above:
"statement" and "branch" coverage. There are many other test
coverage metrics besides these two. Another popular metric is
"Modified Condition/Decision Coverage" or MC/DC. Wikipedia defines
MC/DC as follows:
* Each decision tries every possible outcome.
* Each condition in a decision takes on every possible outcome.
* Each entry and exit point is invoked.
* Each condition in a decision is shown to independently affect
the outcome of the decision.
In the C programming language where && and || are "short-circuit"
operators, MC/DC and branch coverage are very nearly the same thing.
The primary difference is in boolean vector tests. One can test for
any of several bits in bit-vector and still obtain 100% branch test
coverage even though the second element of MC/DC - the requirement
that each condition in a decision take on every possible outcome -
might not be satisfied.
https://sqlite.org/testing.html#mcdc
MC/DC comes in different flavors, the most important being unique cause
MC/DC and masking MC/DC. This patch implements masking MC/DC, which is
works well with short circuiting semantics, and according to John
Chilenski's "An Investigation of Three Forms of the Modified Condition
Decision Coverage (MCDC) Criterion" (2001) is as good as unique cause at
catching bugs.
Whalen, Heimdahl, and De Silva "Efficient Test Coverage Measurement for
MC/DC" describes an algorithm for finding the masking table from an AST
walk, but my algorithm figures this out by analyzing the control flow
graph. The CFG is considered a reduced ordered binary decision diagram
and an input vector a path through the BDD, which is recorded. Specific
edges will mask ("null out") the contribution from earlier path
segments, which can be determined by finding short circuit endpoints.
Masking is most easily understood as circuiting of terms in the
reverse-ordered Boolean function, and the masked conditions do not
affect the decision like short-circuited conditions do not affect the
decision.
A tag/discriminator mapping from gcond->uid is created during
gimplification and made available through the function struct. The
values are unimportant as long as basic conditions constructed from a
single Boolean expression are given the same identifier. This happens in
the breaking down of ANDIF/ORIF trees, so the coverage generally works
well for frontends that create such trees.
Like Whalen et al this implementation records coverage in fixed-size
bitsets which gcov knows how to interpret. Recording conditions only
requires a few bitwise operations per condition and is very fast, but
comes with a limit on the number of terms in a single boolean
expression; the number of bits in a gcov_unsigned_type (which is usually
typedef'd to uint64_t). For most practical purposes this is acceptable,
and by default a warning will be issued if gcc cannot instrument the
expression. This is a practical limitation in the implementation, and
not a limitation of the algorithm, so support for more conditions can be
supported by introducing arbitrary-sized bitsets.
In action it looks pretty similar to the branch coverage. The -g short
opt carries no significance, but was chosen because it was an available
option with the upper-case free too.
gcov --conditions:
3: 17:void fn (int a, int b, int c, int d) {
3: 18: if ((a && (b || c)) && d)
conditions covered 3/8
condition 0 not covered (true false)
condition 1 not covered (true)
condition 2 not covered (true)
condition 3 not covered (true)
1: 19: x = 1;
-: 20: else
2: 21: x = 2;
3: 22:}
Expressions with constants may be heavily rewritten before it reaches
the gimplification, so constructs like int x = a ? 0 : 1 becomes
_x = (_a == 0). From source you would expect coverage, but it gets
neither branch nor condition coverage. The same applies to expressions
like int x = 1 || a which are simply replaced by a constant.
The test suite contains a lot of small programs and functions. Some of
these were designed by hand to test for specific behaviours and graph
shapes, and some are previously-failed test cases in other programs
adapted into the test suite.
* lib/gcov.exp: Add condition coverage test function.
* g++.dg/gcov/gcov-18.C: New test.
* gcc.misc-tests/gcov-19.c: New test.
* gcc.misc-tests/gcov-20.c: New test.
* gcc.misc-tests/gcov-21.c: New test.
* gcc.misc-tests/gcov-22.c: New test.
* gcc.misc-tests/gcov-23.c: New test.
GCC 14 adds the header file arm_neon_sve_bridge.h to help interface
SVE and Advanced SIMD code. One of the defined idioms is:
svset_neonq (svundef_TYPE (), advsimd_vector)
which simply reinterprets advsimd_vector as an SVE vector without
regard for what's in the upper bits.
GCC was failing to recognise this idiom, which was likely to
significantly hamper adoption.
There is (AFAIK) no good way of representing an extension with
undefined bits in gimple. We could add an internal-only builtin
to represent it, but the current framework makes that somewhat
awkward. It also doesn't seem very forward-looking.
This patch instead goes for the simpler approach of recognising
undefined arguments at expansion time.
gcc/
PR target/114577
* config/aarch64/aarch64-sve-builtins.h (aarch64_sve::lookup_fndecl):
Declare.
* config/aarch64/aarch64-sve-builtins.cc (aarch64_sve::lookup_fndecl):
New function.
* config/aarch64/aarch64-sve-builtins-base.cc (is_undef): Likewise.
(svset_neonq_impl::expand): Optimise expansions whose first argument
is undefined.
gcc/testsuite/
PR target/114577
* gcc.target/aarch64/sve/acle/general/pr114577_1.c: New test.
* gcc.target/aarch64/sve/acle/general/pr114577_2.c: Likewise.
Richard Biener [Thu, 4 Apr 2024 08:00:51 +0000 (10:00 +0200)]
tree-optimization/114485 - neg induction with partial vectors
We can't use vect_update_ivs_after_vectorizer for partial vectors,
the following fixes vect_can_peel_nonlinear_iv_p accordingly.
PR tree-optimization/114485
* tree-vect-loop-manip.cc (vect_can_peel_nonlinear_iv_p):
vect_step_op_neg isn't OK for partial vectors but only
for unknown niter.
Jakub Jelinek [Thu, 4 Apr 2024 08:47:52 +0000 (10:47 +0200)]
fold-const: Handle NON_LVALUE_EXPR in native_encode_initializer [PR114537]
The following testcase is incorrectly rejected. The problem is that
for bit-fields native_encode_initializer expects the corresponding
CONSTRUCTOR elt value must be INTEGER_CST, but that isn't the case
here, it is wrapped into NON_LVALUE_EXPR by maybe_wrap_with_location.
We could STRIP_ANY_LOCATION_WRAPPER as well, but as all we are looking for
is INTEGER_CST inside, just looking through NON_LVALUE_EXPR seems easier.
2024-04-04 Jakub Jelinek <jakub@redhat.com>
PR c++/114537
* fold-const.cc (native_encode_initializer): Look through
NON_LVALUE_EXPR if val is INTEGER_CST.
Jakub Jelinek [Thu, 4 Apr 2024 08:47:00 +0000 (10:47 +0200)]
bitint: Handle m_bitfld_load cast in outer m_cast_conditional [PR114555]
We ICE on the following testcase, because we use result of a PHI node
which is only conditional because of a m_cast_conditional on the outermost
loops PHI node argument and so is invalid SSA form.
The following patch fixes it like similar cases elsewhere by adding
needed intervening PHI(s).
2024-04-04 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/114555
* gimple-lower-bitint.cc (bitint_large_huge::handle_cast): For
m_bitfld_load and save_cast_conditional add any needed PHIs
and adjust t4 accordingly.
* gcc.dg/bitint-103.c: New test.
* gcc.dg/bitint-104.c: New test.
Richard Biener [Wed, 3 Apr 2024 12:53:30 +0000 (14:53 +0200)]
tree-optimization/114551 - loop splitting and undefined overflow
When loop splitting hoists a guard computation it needs to make sure
that can be safely evaluated at this place when it was previously
only conditionally evaluated. The following fixes this for the
case of undefined overflow.
PR tree-optimization/114551
* tree-ssa-loop-split.cc (split_loop): If the guard is
only conditionally evaluated rewrite computations with
possibly undefined overflow to unsigned arithmetic.
Eugene Rozenfeld [Tue, 26 Mar 2024 23:28:08 +0000 (16:28 -0700)]
Don't set full_profile in auto-profile [PR113765]
auto-profile currently doesn't guarantee that it will set probabilities
on all edges because of zero basic block counts. Normally those edges
just have probabilities set by the preceding profile_estimate pass but
under -O0 profile_estimate pass doesn't run. The patch removes setting
of full_profile to true in auto-profile.
Tested on x86_64-pc-linux-gnu.
gcc/ChangeLog:
PR gcov-profile/113765
* auto-profile.cc (afdo_annotate_cfg): Don't set full_profile to true
H.J. Lu [Mon, 26 Feb 2024 16:38:58 +0000 (08:38 -0800)]
tree-profile: Disable indirect call profiling for IFUNC resolvers
We can't profile indirect calls to IFUNC resolvers nor their callees as
it requires TLS which hasn't been set up yet when the dynamic linker is
resolving IFUNC symbols.
Add an IFUNC resolver caller marker to cgraph_node and set it if the
function is called by an IFUNC resolver. Disable indirect call profiling
for IFUNC resolvers and their callees.
Tested with profiledbootstrap on Fedora 39/x86-64.
lto-wrapper.cc: Add offload target name to 'offload_args' suffix
lto-wrapper.cc's compile_offload_image calls mkoffload with
an @./a.offload_args argument ('a.' in case of, e.g., 'a.out'). However,
when generating code for both nvptx and gcn, they use the same name
with -save-temps. Hence, this commit adds a <target> + '.' before
'offload_args' in line with other offload-target-specific files.
gcc/ChangeLog:
* lto-wrapper.cc (compile_offload_image): Prefix 'offload_args'
suffix by the target name.
GCN: Fix --with-arch= handling in mkoffload [PR111966]
The default -march= setting used in mkoffload did not reflect the modified
default set by GCC's configure-time --with-arch=, causing issues when
generating debug code.
gcc/ChangeLog:
PR other/111966
* config/gcn/mkoffload.cc (get_arch): New; moved -march= flag
handling from ...
(main): ... here; call it to handle --with-arch config option
and -march= commandline.
Jakub Jelinek [Wed, 3 Apr 2024 08:02:35 +0000 (10:02 +0200)]
libquadmath: Don't assume the storage for __float128 arguments is aligned [PR114533]
With the register_printf_type/register_printf_modifier/register_printf_specifier
APIs the C library is just told the size of the argument and is provided with
a callback to fetch the argument from va_list using va_arg into C library provided
memory. The C library isn't told what alignment requirement it has, but we were
using direct load of a __float128 value from that memory which assumes
__alignof (__float128) alignment.
The following patch fixes that by using memcpy instead.
I haven't been able to reproduce an actual crash, tried
#include <quadmath.h>
#include <stdlib.h>
#include <stdio.h>
int main ()
{
__float128 r;
int prec = 20;
int width = 46;
char buf[128];
r = 2.0q;
r = sqrtq (r);
int n = quadmath_snprintf (buf, sizeof buf, "%+-#*.20Qe", width, r);
if ((size_t) n < sizeof buf)
printf ("%s\n", buf);
/* Prints: +1.41421356237309504880e+00 */
quadmath_snprintf (buf, sizeof buf, "%Qa", r);
if ((size_t) n < sizeof buf)
printf ("%s\n", buf);
/* Prints: 0x1.6a09e667f3bcc908b2fb1366ea96p+0 */
n = quadmath_snprintf (NULL, 0, "%+-#46.*Qe", prec, r);
if (n > -1)
{
char *str = malloc (n + 1);
if (str)
{
quadmath_snprintf (str, n + 1, "%+-#46.*Qe", prec, r);
printf ("%s\n", str);
/* Prints: +1.41421356237309504880e+00 */
}
free (str);
}
printf ("%+-#*.20Qe\n", width, r);
printf ("%Qa\n", r);
printf ("%+-#46.*Qe\n", prec, r);
printf ("%d %Qe %d %Qe %d %Qe\n", 1, r, 2, r, 3, r);
return 0;
}
In any case, I think memcpy for loading from it is right.
2024-04-03 Simon Chopin <simon.chopin@canonical.com>
Jakub Jelinek <jakub@redhat.com>
PR libquadmath/114533
* printf/printf_fp.c (__quadmath_printf_fp): Use memcpy to copy
__float128 out of args.
* printf/printf_fphex.c (__quadmath_printf_fphex): Likewise.
Signed-off-by: Simon Chopin <simon.chopin@canonical.com>
Jakub Jelinek [Wed, 3 Apr 2024 07:59:45 +0000 (09:59 +0200)]
expr: Fix up emit_push_insn [PR114552]
r13-990 added optimizations in multiple spots to optimize during
expansion storing of constant initializers into targets.
In the load_register_parameters and expand_expr_real_1 cases,
it checks it has a tree as the source and so knows we are reading
that whole decl's value, so the code is fine as is, but in the
emit_push_insn case it checks for a MEM from which something
is pushed and checks for SYMBOL_REF as the MEM's address, but
still assumes the whole object is copied, which as the following
testcase shows might not always be the case. In the testcase,
k is 6 bytes, then 2 bytes of padding, then another 4 bytes,
while the emit_push_insn wants to store just the 6 bytes.
The following patch simply verifies it is the whole initializer
that is being stored, I think that is best thing to do so late
in GCC 14 cycle as well for backporting.
For GCC 15, perhaps the code could stop requiring it must be at offset zero,
nor that the size is equal, but could use
get_symbol_constant_value/fold_ctor_reference gimple-fold APIs to actually
extract just part of the initializer if we e.g. push just some subset
(of course, still verify that it is a subset). For sizes which are power
of two bytes and we have some integer modes, we could use as type for
fold_ctor_reference corresponding integral types, otherwise dunno, punt
or use some structure (e.g. try to find one in the initializer?), whatever.
But even in the other spots it could perhaps handle loading of
COMPONENT_REFs or MEM_REFs from the .rodata vars.
2024-04-03 Jakub Jelinek <jakub@redhat.com>
PR middle-end/114552
* expr.cc (emit_push_insn): Only use store_constructor for
immediate_const_ctor_p if int_expr_size matches size.
Richard Biener [Tue, 2 Apr 2024 10:31:04 +0000 (12:31 +0200)]
tree-optimization/114557 - reduce ehcleanup peak memory use
The following reduces peak memory use for the PR114480 testcase at -O1
which is almost exclusively spent by the ehcleanup pass in allocating
PHI nodes. The free_phinodes cache we maintain isn't very effective
since it has effectively two slots, one for 4 and one for 9 argument
PHIs and it is only ever used for allocations up to 9 arguments but
we put all larger PHIs in the 9 argument bucket. This proves
uneffective resulting in much garbage to be kept when incrementally
growing PHI nodes by edge redirection.
The mitigation is to rely on the GC freelist for larger sizes and
thus immediately return all larger bucket sized PHIs to it via ggc_free.
This reduces the peak memory use from 19.8GB to 11.3GB and compile-time
from 359s to 168s.
PR tree-optimization/114557
PR tree-optimization/114480
* tree-phinodes.cc (release_phi_node): Return PHIs from
allocation buckets not covered by free_phinodes to GC.
(remove_phi_node): Release the PHI LHS before freeing the
PHI node.
* tree-vect-loop.cc (vectorizable_live_operation): Get PHI lhs
before releasing it.
Gaius Mulley [Tue, 2 Apr 2024 22:47:42 +0000 (23:47 +0100)]
PR modula2/114565 progress trace would be useful to isolate ICE for users
This patch introduces the internal option -fm2-debug-trace= which can
be given a comma separated list of filter terms. Currently it allows:
all,line,token,quad. The patch allows users to trace the progress of
cc1gm2 so that source which causes an ICE can be reduced. Once
PR113836 is complete it is expected that the trace information will be
written to file.
gcc/m2/ChangeLog:
PR modula2/114565
* gm2-compiler/M2GenGCC.mod (CodeStatement): Test
GetDebugTraceQuad before calling DisplayQuad.
* gm2-compiler/M2LexBuf.mod (NumberIO): Import CardToStr.
(GetToken): Test GetDebugTraceToken before writing the
token number or token line.
* gm2-compiler/M2Options.def (SetDebugTraceQuad): Rename to
(SetM2DebugTraceFilter): ...this.
(SetDebugTraceAPI): Remove.
(GetDebugTraceQuad): New procedure function.
(GetDebugTraceTree): Ditto.
(GetDebugTraceToken): Ditto.
(GetDebugTraceLine): Ditto.
(GetDebugFunctionLineNumbers): Ditto.
* gm2-compiler/M2Options.mod (DebugFunctionLineNumbers): New
boolean variable.
(DebugTraceQuad): Ditto.
(DebugTraceTree): Ditto.
(DebugTraceLine): Ditto.
(DebugTraceToken): Ditto.
(errors1): New procedure.
(SetDebugTraceQuad): Remove.
(SetM2DebugTraceFilter): New procedure implemented.
(SetM2DebugTrace): Ditto.
(GetDebugTraceQuad): Ditto.
(GetDebugTraceToken ): Ditto.
(GetDebugTraceLine): Ditto.
(SetDebugTraceLine): Remove.
* gm2-compiler/M2Quads.mod (GenQuadOTrash): Test
GetDebugTraceQuad and call DisplayQuad.
(GenQuadOTypetok): Ditto.
* gm2-compiler/SymbolTable.mod: Replace
DebugFunctionLineNumbers with GetDebugFunctionLineNumbers.
* gm2-gcc/init.cc (_M2_M2LangDump_init): Add prototype.
(init_PerCompilationInit): Add call.
* gm2-gcc/m2misc.cc (m2misc_cerror): New function.
(m2misc_error): Ditto.
* gm2-gcc/m2misc.def (error): New procedure.
(cerror): Ditto.
* gm2-gcc/m2misc.h (m2misc_cerror): New prototype.
(m2misc_error): Ditto.
* gm2-gcc/m2options.h (M2Options_SetDebugTraceQuad): New
prototype.
(M2Options_SetDebugTraceAPI): Remove.
(M2Options_GetDebugTraceToken): New prototype.
(M2Options_GetDebugTraceLine): Ditto.
(M2Options_SetDebugFunctionLineNumbers): Ditto.
(M2Options_GetDebugFunctionLineNumbers): Ditto.
(M2Options_SetM2DebugTraceFilter): Ditto.
* gm2-lang.cc (gm2_langhook_init_options): Remove
OPT_fdebug_trace_quad case.
Remove OPT_fdebug_trace_api case.
Add OPT_fm2_debug_trace_ case.
* lang.opt (fm2-debug-trace): New option.
(fdebug-trace-api): Remove.
(fdebug-trace-quad): Remove.
* m2.flex (m2flex_M2Error): Check s for NULL.
(skipnewline): New function.
(consumeLine): Call traceline.
Jonathan Wakely [Thu, 28 Mar 2024 21:29:17 +0000 (21:29 +0000)]
libstdc++: Guard uses of char8_t with __cpp_char8_t [PR114519]
libstdc++-v3/ChangeLog:
PR libstdc++/114519
* include/bits/unicode.h (_Utf8_view): Guard with check for
char8_t being enabled.
(__literal_encoding_is_unicode): Guard use of char8_t with check
for it being enabled.
* testsuite/std/format/functions/114519.cc: New test.
Tom Tromey [Sat, 30 Mar 2024 19:48:30 +0000 (13:48 -0600)]
libiberty: Invoke D demangler when --format=auto
Investigating GDB PR d/31580 showed that the libiberty demangler
doesn't automatically demangle D mangled names. However, I think it
should -- like C++ and Rust (new-style), D mangled names are readily
distinguished by the leading "_D", and so the likelihood of confusion
is low. The other non-"auto" cases in this code are Ada (where the
encoded form could more easily be confused by ordinary programs) and
Java (which is long gone, but which also shared the C++ mangling and
thus was just an output style preference).
This patch also fixed another GDB bug, though of course that part
won't apply to the GCC repository.
Marek Polacek [Mon, 1 Apr 2024 16:55:46 +0000 (12:55 -0400)]
c++: make __is_array return false for T[0] [PR114479]
When we switched to using the __is_array built-in trait to implement
std::is_array in r14-6623-g7fd9c349e45534, we started saying that
T[0] is an array. There are various opinions as to whether that is
the best answer, but it seems prudent to keep the GCC 13 result.
PR c++/114479
gcc/cp/ChangeLog:
* semantics.cc (trait_expr_value) <case CPTK_IS_ARRAY>: Return false
for zero-sized arrays.
Marek Polacek [Fri, 29 Mar 2024 20:59:37 +0000 (16:59 -0400)]
c++: ICE with scoped enum in switch condition [PR103825]
Here we ICE when gimplifying
enum class Type { Pawn };
struct Piece {
Type type : 4;
};
void foo() {
switch (Piece().type)
case Type::Pawn:;
}
because we ended up with TYPE_PRECISION (cond) < TYPE_PRECISION (case).
That's because the case expr type here is the unlowered type Type,
whereas the conditional's type is the lowered <unnamed-signed:4>. This
is not supposed to happen: see the comment in pop_switch around the
is_bitfield_expr_with_lowered_type check.
But here we did not revert to the lowered SWITCH_STMT_TYPE, because
the conditional contains a TARGET_EXPR, which has side-effects, which
means that finish_switch_cond -> maybe_cleanup_point_expr wraps it
in a CLEANUP_POINT_EXPR. And is_bitfield_expr_with_lowered_type does
not see through those.
Jason Merrill [Tue, 2 Apr 2024 14:52:28 +0000 (10:52 -0400)]
c++: binding reference to comma expr [PR114561]
We represent a reference binding where the referent type is more qualified
by a ck_ref_bind around a ck_qual. We performed the ck_qual and then tried
to undo it with STRIP_NOPS, but that doesn't work if the conversion is
buried in COMPOUND_EXPR. So instead let's avoid performing that fake
conversion in the first place.
PR c++/114561
PR c++/114562
gcc/cp/ChangeLog:
* call.cc (convert_like_internal): Avoid adding qualification
conversion in direct reference binding.
gcc/testsuite/ChangeLog:
* g++.dg/conversion/ref10.C: New test.
* g++.dg/conversion/ref11.C: New test.
Patrick Palka [Tue, 2 Apr 2024 17:07:07 +0000 (13:07 -0400)]
libstdc++: Allow adjacent __maybe_present_t<false, ...> fields to overlap
Currently __maybe_present_t<false, T> maps to the same empty class
type independent of T. This is suboptimal because it means adjacent
__maybe_present_t<false, ...> members with the [[no_unique_address]]
attribute can't overlap even if the conditionally present types are
different.
This patch turns this empty class type into a template parameterized by
the conditionally present type, so that
This patch goes a step further and also adds an optional integer
discriminator parameter to allow for overlapping when T and U are
the same.
libstdc++-v3/ChangeLog:
* include/std/ranges (ranges::__detail::_Empty): Rename to ...
(ranges::__detail::_Absent): ... this. Turn into a template
parameterized by the absent type _Tp and discriminator _Disc.
(ranges::__detail::__maybe_present_t): Add an optional
discriminator parameter.
(slide_view::_M_cached_begin): Pass a discriminator argument to
__maybe_present_t.
(slide_view::_M_cached_end): Likewise.
* testsuite/std/ranges/adaptors/sizeof.cc: Verify the size of
slide_view<V> is 3 instead 4 pointers.
I think those ", 0" should not appear on their own lines. The issue
seems to be that print_dw_val should not generally emit a newline,
except when recursing.
gcc/ChangeLog
* dwarf2out.cc (print_dw_val) <dw_val_class_loc>: Don't
print newline when not recursing.
Paul Thomas [Tue, 2 Apr 2024 14:53:29 +0000 (15:53 +0100)]
Fortran: Add error for subroutine passed to a variable dummy [PR106999]
2024-04-02 Paul Thomas <pault@gcc.gnu.org>
gcc/fortran
PR fortran/106999
* interface.cc (gfc_compare_interfaces): Add error for a
subroutine proc pointer passed to a variable formal.
(compare_parameter): If a procedure pointer is being passed to
a non-procedure formal arg, and there is an an interface, use
gfc_compare_interfaces to check and provide a more useful error
message.
gcc/testsuite/
PR fortran/106999
* gfortran.dg/pr106999.f90: New test.
Paul Thomas [Tue, 2 Apr 2024 13:19:09 +0000 (14:19 +0100)]
Fortran: Fix wrong recursive errors and class initialization [PR112407]
2024-04-02 Paul Thomas <pault@gcc.gnu.org>
gcc/fortran
PR fortran/112407
* resolve.cc (resolve_procedure_expression): Change the test for
for recursion in the case of hidden procedures from modules.
(resolve_typebound_static): Add warning for possible recursive
calls to typebound procedures.
* trans-expr.cc (gfc_trans_class_init_assign): Do not apply
default initializer to class dummy where component initializers
are all null.
gcc/testsuite/
PR fortran/112407
* gfortran.dg/pr112407a.f90: New test.
* gfortran.dg/pr112407b.f90: New test.
Jakub Jelinek [Tue, 2 Apr 2024 11:40:27 +0000 (13:40 +0200)]
Fix up postboot dependencies [PR106472]
On Wed, Mar 13, 2024 at 10:13:37AM +0100, Jakub Jelinek wrote:
> While the first Makefile.tpl hunk looks obviously ok, the others look
> completely wrong to me.
> There is nothing special about libgo vs. libbacktrace/libatomic
> compared to any other target library which is not bootstrapped vs. any
> of its dependencies which are in the bootstrapped set.
> So, Makefile.tpl shouldn't hardcode such dependencies.
Here is my version of the fix.
The dependencies in the toplevel Makefile simply didn't take into account
that some target modules could be in a bootstrapped build built in some
configurations as bootstrap modules (typically as dependencies of other
target bootstrap modules), while in other configurations just as
dependencies of non-bootstrap target modules and so not built during the
bootstrap, but after it.
Makefile.tpl arranges for those postboot target module -> target module
dependencies to be emitted only inside of an @unless gcc-bootstrap block,
while for @if gcc-bootstrap it just emits
configure-target-whatever: stage_last
dependencies which ensure those postbootstrap target modules are only built
after everything that is bootstrapped has been.
Now, the libbacktrace/libatomic target modules have bootstrap=true
target_modules = { module= libbacktrace; bootstrap=true; };
target_modules = { module= libatomic; bootstrap=true; lib_path=.libs; };
because those modules are dependencies of libphobos target module, so
when d is included among bootstrapped languages, those are all bootstrapped
and everything works correctly.
While if d is not included, libphobos target module is disabled,
libbacktrace/libatomic target modules aren't bootstrapped, nothing during
bootstrap needs them, but post bootstrap libgo target module depends on
the libatomic and libbacktrace target modules, libgfortran target module
depends on the libbacktrace target module and libgm2 target module depends
on the libatomic target module, but those dependencies were emitted only
@unless gcc-bootstrap. There is a similar theoretical problem for zlib
target module if GCJ would be ressurected, libphobos as bootstrap target
module depends on the zlib target module, but if d is not configured,
fastjar also depends on it.
The following patch arranges for the @if gcc-bootstrap case to emit also
target module -> target module dependencies, but conditionally on the
on dependency not being bootstrapped.
In the generated Makefile.in you can see what the Makefile.tpl change
produces and that it just adds extra dependencies which weren't there
before in the @if gcc-bootstrap case.
I've bootstrapped without this patch with
../configure --enable-languages=c,c++,go; make
on x86_64-linux (note, make -j2 or higher usually worked) which failed
as described in the PR, then with this patch with the same command which
built fine and the Makefile difference between the two builds being
diff -up obj40{a,b}/Makefile
--- obj40a/Makefile 2024-03-31 00:35:22.243791499 +0100
+++ obj40b/Makefile 2024-03-31 22:40:38.143299144 +0200
@@ -29376,6 +29376,14 @@ configure-bison: stage_last
configure-flex: stage_last
configure-m4: stage_last
# Dependencies for target modules on other target modules are
# described by lang_env_dependencies; the defaults apply to anything
which I believe are exactly the extra dependencies we want.
Plus I've done normal x86_64-linux and i686-linux bootstraps/regtests
which in my case include --enable-languages=default,ada,obj-c++,lto,go,d,rust,m2
for x86_64 and the same except ada for i686; those with my usual make -j32.
The Makefile difference in those builds vs. unpatched case
is just an extra empty line.
2024-04-02 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/106472
* Makefile.tpl (make-postboot-target-dep): New lambda.
Use it to add --enable-bootstrap dependencies of target modules
on other target modules if the latter aren't bootstrapped.
* Makefile.in: Regenerate.
This is just part of the changes, mostly for non-gcc directories.
I'll try to get to the rest soon. Obviously, the above command also
finds cases which are correct as is and shouldn't be changed, so one
needs to manually inspect everything.
I'd hope most of it is pretty obvious, but the config/ and libstdc++-v3/
hunks include a tweak in a license wording, though other copies of the
similar license have the wording right.
2024-04-02 Jakub Jelinek <jakub@redhat.com>
* Makefile.tpl: Fix duplicated words; returns returns ->
returns.
config/
* lcmessage.m4: Fix duplicated words; can can -> can,
package package -> package.
libdecnumber/
* decCommon.c (decFinalize): Fix duplicated words in
comment; the the -> the.
libgcc/
* unwind-dw2-fde.c (struct fde_accumulator): Fix duplicated
words in comment; is is -> is.
libgfortran/
* configure.host: Fix duplicated words; the the -> the.
libgm2/
* configure.host: Fix duplicated words; the the -> the.
libgomp/
* libgomp.texi (OpenMP 5.2): Fix duplicated words; with with ->
with.
(omp_target_associate_ptr): Fix duplicated words; either either ->
either.
(omp_init_allocator): Fix duplicated words; be be -> be.
(omp_realloc): Fix duplicated words; is is -> is.
(OMP_ALLOCATOR): Fix duplicated words; other other -> other.
* priority_queue.h (priority_queue_multi_p): Fix duplicated words;
to to -> to.
libiberty/
* regex.c (byte_re_match_2_internal): Fix duplicated words in comment;
next next -> next.
* dyn-string.c (dyn_string_init): Fix duplicated words in comment;
of of -> of.
libitm/
* beginend.cc (GTM::gtm_thread::begin_transaction): Fix duplicated
words in comment; not not -> not to.
libobjc/
* init.c (duplicate_classes): Fix duplicated words in comment; in in
-> in.
* sendmsg.c (__objc_prepare_dtable_for_class): Fix duplicated words
in comment; the the -> the.
* encoding.c (objc_layout_structure): Likewise.
libstdc++-v3/
* acinclude.m4: Fix duplicated words; file file -> file can.
* configure.host: Fix duplicated words; the the -> the.
libvtv/
* vtv_rts.cc (vtv_fail): Fix duplicated words; to to -> to.
* vtv_fail.cc (vtv_fail): Likewise.
Iain Sandoe [Sat, 13 Jan 2024 17:20:47 +0000 (17:20 +0000)]
jit, Darwin: Implement library exports list.
Currently, we have no exports list for libgccjit, which means that
all symbols are exported, including those from libstdc++ which is
linked statically into the lib. This causes failures when the
shared libstdc++ is used but some c++ symbols are satisfied from
libgccjit.
This implements an export file for Darwin (which is currently
manually created by cross-checking libgccjit.map). Ideally we'd
script this, at some point. Update libtool current and age to
reflect the current ABI version (we are not bumping the SO name
at this stage).
This fixes a number of new failures in jit testing.
gcc/jit/ChangeLog:
* Make-lang.in: Implement exports list, and use a shared
libgcc.
* libgccjit.exports: New file.
Iain Sandoe [Sun, 31 Mar 2024 10:22:58 +0000 (11:22 +0100)]
testsuite: Remove duplicate -lgcov [PR114034]
Duplicate library entries now cause linker warnings with newer linker
versions on Darwin which leads to these tests regressing. The library
is already added by the test flags so there is no need to put an extra
one in the options.
PR testsuite/114034
gcc/testsuite/ChangeLog:
* g++.dg/gcov/gcov-dump-1.C: Remove extra -lgcov.
* g++.dg/gcov/gcov-dump-2.C: Likewise.
When the version for dsymutil comes from a clang build, it is
of the form NNmm.pp.qq where NN and mm are the major and minor
LLVM version components. We need to check for a major version
greater than or equal to 7 - so use 700 in the check.
gcc/ChangeLog:
* config/darwin.cc (darwin_override_options): Update the
clang major version value in the dsymutil check.
projects / thirdparty / gcc.git / log
