rsandifo [Tue, 13 Oct 2015 07:34:41 +0000 (07:34 +0000)]
To: gcc-patches@gcc.gnu.org
Subject: Add an extra pow rule to match.pd
From: Richard Sandiford <richard.sandiford@arm.com>
Gcc: private.sent
--text follows this line--
Simplify pow(|x|,y) and pow(-x,y) to pow(x,y) if y is an even integer.
At the moment this duplicates a case in fold_builtin_pow, but an
upcoming patch will move all the fold_builtin_pow rules to match.pd.
I'm doing this one early to fix a regression in builtin-10.c for
soft-float ARM.
gcc/
* real.h (real_isinteger): Declare.
* real.c (real_isinteger): New function.
* match.pd: Simplify pow(|x|,y) and pow(-x,y) to pow(x,y)
if y is an even integer.
law [Mon, 12 Oct 2015 21:39:35 +0000 (21:39 +0000)]
[PATCH] Allow FSM threader to thread more complex conditions
* tree-ssa-threadbackward.c (get_gimple_control_stmt): New function.
(fsm_find_control_stmt_paths): Change name of first argument to
more accurately relfect what it really is. Handle simplification
of GIMPLE_COND after finding a thread path for NAME.
* tree-ssa-threadedge.c (simplify_control_stmt_condition): Allow
nontrivial conditions to be handled by FSM threader.
(thread_through_normal_block): Extract the name to looup via
FSM threader from COND_EXPR.
* gcc.dg/tree-ssa/ssa-thread-12.c: New test.
* gcc.dg/tree-ssa/ssa-dom-thread-7.c: Update expected output.
* gcc.dg/tree-ssa/ssa-thread-11.c: Renamed from
ssa-dom-thread-11.c.
uros [Mon, 12 Oct 2015 13:59:10 +0000 (13:59 +0000)]
* config/rs6000/rs6000.h (RS6000_ALIGN): Implement using
ROUND_UP macro.
* config/rs6000/rs6000.c (rs6000_darwin64_record_arg_advance_flush):
Use ROUND_UP and ROUND_DOWN macros where applicable.
(rs6000_darwin64_record_arg_flush): Ditto.
(rs6000_function_arg): Use ROUND_UP to calculate align_words.
(rs6000_emit_probe_stack_range): Use ROUND_DOWN to calculate
rounded_size.
* config/aarch/aarch64.h (AARCH64_ROUND_UP): Remove.
(AARCH64_ROUND_DOWN): Ditto.
* config/aarch64/aarch64.c: Use ROUND_UP instead of AARCH64_ROUND_UP.
rguenth [Mon, 12 Oct 2015 12:26:02 +0000 (12:26 +0000)]
2015-10-12 Richard Biener <rguenther@suse.de>
PR ipa/67783
* ipa-inline-analysis.c (estimate_function_body_sizes): Re-add
code that analyzes IVs on each stmt but in a cheaper way avoiding
quadratic behavior.
nickc [Mon, 12 Oct 2015 10:20:56 +0000 (10:20 +0000)]
* config/msp430/msp430.c (msp430_mcu_names): Rename to
msp430_mcu_data, add fields for ISA and hardware multiply
support. Import latest data from the devices.csv file.
(msp430_override_option): Use the data from the new array.
(msp430_use_f5_series_hwmult): Likewise.
(use_32bit_hwmult): Likewise.
(msp430_no_hwmult): Likewise.
* config/msp430/t-msp430 (MULTILIB_MATCHES): Add matches for new
MCU names.
* doc/invoke.texi (MSP430 Options): Note that if the MCU name is
not recognised then no hardware multiply support is assumed and
that only the MSP430 ISA is allowed.
jason [Mon, 12 Oct 2015 07:58:43 +0000 (07:58 +0000)]
PR c++/67557
* expr.c (store_field): Call store_constructor directly when
storing a CONSTRUCTOR into a target smaller than its type.
Guard against unsafe bitwise copy.
law [Mon, 12 Oct 2015 01:17:51 +0000 (01:17 +0000)]
[PATCH] Refactoring FSM bits into their own file
* tree-ssa-threadedge.c (fsm_find_thread_path): Moved from here into
tree-ssa-threadbackward.c.
(fsm_find_control_statement_thread_paths): Likewise.
(thread_through_normal_block): Break out FSM bits and move them
into a new function in tree-ssa-threadbackward.c. Call new function
instead.
Minimize header file usage.
* tree-ssa-threadbackward.h: New file.
* tree-ssa-threadbackward.c: Likewise.
* Makefile.in (OBJS): Add tree-ssa-threadbackward.o
jsm28 [Sun, 11 Oct 2015 22:34:28 +0000 (22:34 +0000)]
Test for __cxa_thread_atexit_impl when cross-compiling libstdc++ for GNU targets.
I noticed that when testing glibc with a cross compiler I got
UNSUPPORTED: nptl/tst-thread_local1
because the libstdc++-v3 configuration for cross compiling defaulted
to __cxa_thread_atexit_impl not being available. This patch fixes
GLIBCXX_CROSSCONFIG to run the same test (for the case covering
targets with glibc) for __cxa_thread_atexit_impl as for native
compilation, just as it runs most of the other tests done for native
compilation (for these targets, it's not possible to build libstdc++
without already having built libc, so link tests are OK).
Tested with no regressions for cross to arm-none-linux-gnueabi.
segher [Sun, 11 Oct 2015 09:03:09 +0000 (09:03 +0000)]
bb-reorder: Improve the simple algorithm for -Os (PR67864)
As the PR points out, the "simple" reorder algorithm makes bigger code
than the STC algorithm did, for -Os, for x86. I now tested it for many
different targets and it turns out to be worse everywhere.
This simple patch tunes "simple" a bit; this makes it better than STC
almost everywhere. The only exceptions (for the targets where I have
results) are x86 and mn10300. For those targets it may be best to switch
the default algorithm for -Os to STC.
* gfortran.dg/lto/bind_c-2_0.f90: New testcase.
* gfortran.dg/lto/bind_c-2_1.c: New testcase.
* gfortran.dg/lto/bind_c-3_0.f90: New testcase.
* gfortran.dg/lto/bind_c-3_1.c: New testcase.
* gfortran.dg/lto/bind_c-4_0.f90: New testcase.
* gfortran.dg/lto/bind_c-4_1.c: New testcase.
* gfortran.dg/lto/bind_c-5_0.f90: New testcase.
* gfortran.dg/lto/bind_c-5_1.c: New testcase.
sje [Fri, 9 Oct 2015 17:12:26 +0000 (17:12 +0000)]
2015-10-09 Steve Ellcey <sellcey@imgtec.com>
* gcc.target/mips/mips.exp (mips_option_groups): Add -mframe-header-opt
and -mno-frame-header-opt options.
* gcc.target/mips/frame-header-1.c: New file.
* gcc.target/mips/frame-header-2.c: New file.
* gcc.target/mips/frame-header-3.c: New file.
This patch adds an easy way to write tests for expected multiline
output. For example we can test carets and underlines for
a particular diagnostic with:
multiline.exp is used by prune.exp; hence we need to load it before
prune.exp via *load_gcc_lib* for the testsuites of the various
non-"gcc" support libraries (e.g. boehm-gc).
gcc/testsuite/ChangeLog:
* lib/multiline.exp: New file.
* lib/prune.exp: Load multiline.exp.
(prune_gcc_output): Call into multiline.exp to handle any
multiline output directives.
* lib/libgo.exp: Load multiline.exp before prune.exp, using
load_gcc_lib.
boehm-gc/ChangeLog:
* testsuite/lib/boehm-gc.exp: Load multiline.exp before
prune.exp, using load_gcc_lib.
libatomic/ChangeLog:
* testsuite/lib/libatomic.exp: Load multiline.exp before
prune.exp, using load_gcc_lib.
libgomp/ChangeLog:
* testsuite/lib/libgomp.exp: Load multiline.exp before prune.exp,
using load_gcc_lib.
libitm/ChangeLog:
* testsuite/lib/libitm.exp: Load multiline.exp before prune.exp,
using load_gcc_lib.
libvtv/ChangeLog:
* testsuite/lib/libvtv.exp: Load multiline.exp before prune.exp,
using load_gcc_lib.
jamborm [Fri, 9 Oct 2015 13:13:38 +0000 (13:13 +0000)]
[PR 67794] Also remap SSA_NAMEs defined in ASMs in IPA-SRA
2015-10-09 Martin Jambor <mjambor@suse.cz>
tree-optimization/67794
* tree-sra.c (replace_removed_params_ssa_names): Do not distinguish
between types of state,ents but accept original definitions as a
parameter.
(ipa_sra_modify_function_body): Use FOR_EACH_SSA_DEF_OPERAND to
iterate over definitions.
rguenth [Fri, 9 Oct 2015 11:47:31 +0000 (11:47 +0000)]
2015-10-09 Richard Biener <rguenther@suse.de>
* genmatch.c (print_operand): Fix formatting.
(dt_node::append_simplify): Warn for multiple simplifiers
that match the same pattern.
* match.pd (log (exp @0)): Remove duplicates.
ramana [Fri, 9 Oct 2015 10:58:06 +0000 (10:58 +0000)]
[AArch64] Handle literal pools for functions > 1 MiB in size.
This patch fixes the issue in PR63304 where we have
functions that are > 1MiB. The idea is to use adrp / ldr or adrp / add
instructions to address the literal pools under the use of a command line
option. I would like to turn this on by default on trunk but keep this
disabled by default for the release branches in order to get some
serious testing for this feature while it bakes on trunk.
As a follow-up I would like to try and see if estimate_num_insns or
something else can give us a heuristic to turn this on for "large" functions.
After all the number of incidences of this are quite low in real life,
so may be we should look to restrict this use as much as possible on the
grounds that this code generation implies an extra integer register for
addressing for every floating point and vector constant and I don't think
that's great in code that already may have high register pressure.
Tested on aarch64-none-elf with no regressions. A previous
version was bootstrapped and regression tested.
This adds movmisalignhi and movmisalignsi expanders when unaligned
access is allowed by the architecture. This allows the mid-end
to expand to misaligned loads and stored.
Compared code generated for the Linux kernel and
it changes code generation for a handful of files all for the better
basically by reducing the stack usage.
Tested by :
1. armhf bootstrap and regression test - no regressions.
2.. arm-none-eabi cross build and regression test for
hjl [Thu, 8 Oct 2015 18:57:11 +0000 (18:57 +0000)]
Round up the SSE register save area only if needed
There is is no point to round up the SSE register save area to 16 bytes if
the incoming stack boundary is less than 16 bytes.
* config/i386/i386.c (ix86_compute_frame_layout): Round up the
SSE register save area to 16 bytes only if the incoming stack
boundary is no less than 16 bytes.
nathan [Thu, 8 Oct 2015 17:31:36 +0000 (17:31 +0000)]
* config/nvptx/nvptx.h (struct machine_function): Add comment.
* config/nvptx/nvptx.c (nvptx_declare_function_name): Functions
may return pointer as well as in memory.
(nvptx_output_return): Likewise.
rsandifo [Thu, 8 Oct 2015 16:49:24 +0000 (16:49 +0000)]
Make tree_expr_nonnegative_warnv_p recurse into SSA names
The upcoming patch to move sqrt and cbrt simplifications to match.pd
caused a regression because the (abs @0)->@0 simplification didn't
trigger for:
(abs (convert (abs X)))
The simplification is based on tree_expr_nonnegative_p, which at
the moment just gives up if it sees an SSA_NAME.
This patch makes tree_expr_nonnegative_p recurse into SSA name
definitions, but limits the depth of recursion to a small number
for the reason mentioned in the comment (adapted from an existing
comment in gimple_val_nonnegative_real_p). The patch reuses code
in tree-vrp.c, moving it to gimple-fold.c. It also replaces calls
to gimple_val_nonnegative_real_p with calls to tree_expr_nonnegative_p.
A knock-on effect is that we can now prove _i_589 < 0 is false in
sequences like:
This defeats an assert in tree-vrp.c that ASSERT_EXPR conditions
are never known to be false. Previously the assert only ever used
local knowledge and so would be limited to cases like x != x for
integer x. Now that we use global knowledge it's possible to prove
the assertion condition is false in blocks that are in practice
unreachable. The patch therefore removes the assert.
Bootstrapped & regression-tested on x86_64-linux-gnu. I didn't write
a specific test because this is already covered by the testsuite if
the follow-on patch is also applied.
gcc/
* params.def (PARAM_MAX_SSA_NAME_QUERY_DEPTH): New param.
* doc/invoke.texi (--param max-ssa-name-query-depth): Document.
* fold-const.h (tree_unary_nonnegative_warnv_p)
(tree_single_nonnegative_warnv_p, tree_call_nonnegative_warnv_p)
(tree_expr_nonnegative_warnv_p): Add depth parameters.
* fold-const.c: Include gimple-fold.h and params.h.
(tree_ssa_name_nonnegative_warnv_p): New function.
(tree_unary_nonnegative_warnv_p, tree_binary_nonnegative_warnv_p)
(tree_single_nonnegative_warnv_p, tree_call_nonnegative_warnv_p)
(tree_invalid_nonnegative_warnv_p, tree_expr_nonnegative_warnv_p):
Add a depth parameter and increment it for recursive calls to
tree_expr_nonnegative_warnv_p. Use tree_ssa_name_nonnegative_warnv_p
to handle SSA names.
* gimple-fold.h (gimple_val_nonnegative_real_p): Delete.
(gimple_stmt_nonnegative_warnv_p): Declare.
* tree-vrp.c (remove_range_assertions): Remove assert that condition
cannot be proven false.
(gimple_assign_nonnegative_warnv_p, gimple_call_nonnegative_warnv_p)
(gimple_stmt_nonnegative_warnv_p): Move to...
* gimple-fold.c: ...here. Add depth parameters and pass them
down to the tree routines. Accept statements that aren't
assignments or calls but just return false for them.
(gimple_val_nonnegative_real_p): Delete.
* tree-ssa-math-opts.c (gimple_expand_builtin_pow): Use
tree_expr_nonnegative_p instead of gimple_val_nonnegative_real_p.
Check HONOR_NANs first.
ienkovich [Thu, 8 Oct 2015 13:14:09 +0000 (13:14 +0000)]
gcc/
* tree-ssa-loop-unswitch.c: Include "gimple-iterator.h" and
"cfghooks.h", add prototypes for introduced new functions.
(tree_ssa_unswitch_loops): Use from innermost loop iterator, move all
checks on ability of loop unswitching to tree_unswitch_single_loop;
invoke tree_unswitch_single_loop or tree_unswitch_outer_loop depending
on innermost loop check.
(tree_unswitch_single_loop): Add all required checks on ability of
loop unswitching under zero recursive level guard.
(tree_unswitch_outer_loop): New function.
(find_loop_guard): Likewise.
(empty_bb_without_guard_p): Likewise.
(used_outside_loop_p): Likewise.
(get_vop_from_header): Likewise.
(hoist_guard): Likewise.
(check_exit_phi): Likewise.
gcc/testsuite/
* gcc.dg/loop-unswitch-2.c: New test.
* gcc.dg/loop-unswitch-3.c: Likewise.
* gcc.dg/loop-unswitch-4.c: Likewise.
hubicka [Wed, 7 Oct 2015 22:54:35 +0000 (22:54 +0000)]
* expr.c (store_expr_with_bounds): Handle aggregate moves from
BLKmode.
* gimple-expr.c (useless_type_conversion_p): Do not use TYPE_CANONICAL
to define gimple type system; compare aggregates only by size.
law [Wed, 7 Oct 2015 21:56:18 +0000 (21:56 +0000)]
Re: [PATCH] Improve DOM's optimization of control statements
* tree-ssa-dom.c (optimize_stmt): Don't set LOOPS_NEED_FIXUP here.
* tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Do it
here instead. Tighten test to avoid setting LOOPS_NEED_FIXUP
unnecessarily.
spop [Wed, 7 Oct 2015 19:25:35 +0000 (19:25 +0000)]
gather bbs and conditions in a single walk through dominators
Clean up the function to build scop's basic blocks and the function
that gathers the conditions under which a basic block is executed. We remove
one traversal of the dominator tree.
This refactoring was triggered by the need of a vec<bb> of all the basic blocks
in a region. We will use that vector in a patch that removes the out-of-ssa
translation of scalar dependences: we will iterate through the basic blocks of a
region to record scalar dependences crossing bbs or going out of the region.
The patch passes bootstrap and regtest on x86_64-linux.
2015-10-06 Aditya Kumar <aditya.k7@samsung.com>
Sebastian Pop <s.pop@samsung.com>
* graphite-dependences.c (scop_get_dependences): Do not use SCOP_BBS.
* graphite-isl-ast-to-gimple.c (get_max_schedule_dimensions): Same.
(generate_isl_schedule): Same.
* graphite-optimize-isl.c (scop_get_domains): Same.
(apply_schedule_map_to_scop): Same.
* graphite-poly.c (print_iteration_domains): Same.
(remove_gbbs_in_scop): Same.
(new_scop): Same.
(free_scop): Same.
(print_scop): Same.
* graphite-poly.h (struct scop): Rename bbs to pbbs.
(SCOP_BBS): Remove.
* graphite-scop-detection.c (compare_bb_depths): Remove.
(graphite_sort_dominated_info): Remove.
(try_generate_gimple_bb): Move out of scop_detection.
(all_non_dominated_preds_marked_p): Remove.
(build_scop_bbs_1): Remove.
(build_scop_bbs): Remove.
(nb_pbbs_in_loops): Do not use SCOP_BBS.
(find_scop_parameters): Same.
(sese_dom_walker): Rename gather_bbs.
(before_dom_children): Call try_generate_gimple_bb and collect gbb
and pbb.
(build_scops): Call gather_bbs.
* graphite-sese-to-poly.c (build_scop_scattering): Do not use SCOP_BBS.
(add_conditions_to_constraints): Same.
(build_scop_iteration_domain): Same.
(build_scop_drs): Same.
(new_pbb_from_pbb): Same.
* sese.c (new_sese_info): Create bbs.
* sese.h (struct sese_info_t): Add bbs.
uros [Wed, 7 Oct 2015 17:42:09 +0000 (17:42 +0000)]
PR target/66697
* config/i386/i386.c (ix86_option_override_internal): Always use
8-byte minimum stack boundary in 64-bit mode.
(ix86_compute_frame_layout): Remove assert on INCOMING_STACK_BOUNDARY.
(ix86_emit_save_reg_using_mov): Support unaligned SSE store.
Add a REG_CFA_EXPRESSION note if needed.
(ix86_emit_restore_sse_regs_using_mov): Support unaligned SSE load.
(ix86_handle_force_align_arg_pointer_attribute): New.
(ix86_minimum_incoming_stack_boundary): Remove TARGET_64BIT check.
(ix86_attribute_table): Set ix86_force_align_arg_pointer_string
with ix86_handle_force_align_arg_pointer_attribute.
* config/i386/i386.h (MIN_STACK_BOUNDARY): Set to BITS_PER_WORD.
testsuite/ChangeLog:
PR target/66697
* gcc.target/i386/20060512-1.c: Remove ia32 requirement.
(PUSH, POP): New defines.
(sse2_test): Use PUSH and POP to misalign runtime stack.
* gcc.target/i386/20060512-2.c: Remove ia32 requirement.
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