Max Filippov [Tue, 19 Jun 2018 21:08:46 +0000 (21:08 +0000)]
xtensa: fix PR target/65416
The issue is caused by reordering of stack pointer update after stack
space allocation with instructions that write to the allocated stack
space. In windowed ABI register spill area for the previous call frame
is located just below the stack pointer and may be reloaded back into
the register file on movsp.
Implement allocate_stack pattern for windowed ABI configuration and
insert an instruction that prevents reordering of frame memory access
and stack pointer update.
gcc/
2018-06-19 Max Filippov <jcmvbkbc@gmail.com>
Backport from mainline
2018-06-19 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/xtensa.md (UNSPEC_FRAME_BLOCKAGE): New unspec
constant.
(allocate_stack, frame_blockage, *frame_blockage): New patterns.
Martin Liska [Fri, 15 Jun 2018 08:51:28 +0000 (10:51 +0200)]
Partial backport r256656
2018-06-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2018-01-10 Kelvin Nilsen <kelvin@gcc.gnu.org>
* lex.c (search_line_fast): Remove illegal coercion of an
unaligned pointer value to vector pointer type and replace with
use of __builtin_vec_vsx_ld () built-in function, which operates
on unaligned pointer values.
Eric Botcazou [Sat, 2 Jun 2018 09:58:46 +0000 (09:58 +0000)]
backport: trans.c (Call_to_gnu): If this is a function call and there is no target...
Backport from mainline
2018-05-31 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/trans.c (Call_to_gnu): If this is a function call and
there is no target, also create a temporary for the return value for
an allocator if the type is an unconstrained record type with default
discriminant.
Bill Schmidt [Fri, 1 Jun 2018 13:00:57 +0000 (13:00 +0000)]
backport: [multiple changes]
2018-06-01 Bill Schmidt <wschmidt@linux.ibm.com>
PR tree-optimization/85712
Backport from mainline:
2018-05-23 Bill Schmidt <wschmidt@linux.ibm.com>
PR tree-optimization/85712
* gimple-ssa-strength-reduction.c (struct slsr_cand_d): Add
first_interp field.
(alloc_cand_and_find_basis): Initialize first_interp field.
(slsr_process_mul): Modify first_interp field.
(slsr_process_add): Likewise.
(slsr_process_cast): Modify first_interp field for each new
interpretation.
(slsr_process_copy): Likewise.
(dump_candidate): Dump first_interp field.
(replace_mult_candidate): Process all interpretations, not just
subsequent ones.
(replace_rhs_if_not_dup): Likewise.
(replace_one_candidate): Likewise.
Backport from mainline:
2018-05-25 Bill Schmidt <wschmidt@linux.ibm.com>
PR tree-optimization/85712
* gimple-ssa-strength-reduction.c (replace_one_candidate): Skip if
this candidate has already been replaced in-situ by a copy.
Paul Thomas [Wed, 16 May 2018 11:42:47 +0000 (11:42 +0000)]
re PR fortran/83149 ([6- and 7-branches] Missing test for sym->ns->proc_name: crash_signal in toplev.c:325)
2018-05-16 Paul Thomas <pault@gcc.gnu.org>
PR fortran/83149
Backport from trunk
* trans-decl.c (gfc_finish_var_decl): Test sym->ns->proc_name
before accessing its components.
* trans-types.c (gfc_sym_type): If a character result has null
backend_decl, try the procedure symbol.
2018-05-16 Paul Thomas <pault@gcc.gnu.org>
PR fortran/83149
Backport from trunk
* gfortran.dg/pr83149_1.f90: New test.
* gfortran.dg/pr83149.f90: Additional source for previous.
* gfortran.dg/pr83149_b.f90: New test.
* gfortran.dg/pr83149_a.f90: Additional source for previous.
Steven G. Kargl [Fri, 11 May 2018 18:34:14 +0000 (18:34 +0000)]
re PR fortran/85521 (ICE in gfc_resolve_character_array_constructor, at fortran/array.c:2049)
2018-05-11 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/85521
Backport from trunk
* array.c (gfc_resolve_character_array_constructor): Substrings
with upper bound smaller than lower bound are zero length strings.
2018-05-11 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/85521
Backport from trunk
* gfortran.dg/pr85521_1.f90: New test.
* gfortran.dg/pr85521_2.f90: New test.
Jonathan Wakely [Thu, 10 May 2018 19:27:14 +0000 (20:27 +0100)]
Document Dual ABI for std::ios_base::failure
* doc/xml/manual/debug_mode.xml: Add array and forward_list to list
of C++11 containers with Debug Mode support.
* doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
* doc/html/*: Regenerate.
re PR fortran/85507 (ICE in gfc_dep_resolver, at fortran/dependency.c:2258)
gcc/fortran/ChangeLog:
2018-05-06 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/85507
Backport from trunk.
* dependency.c (gfc_dep_resolver): Revert looking at coarray dimension
introduced by r259385.
* trans-intrinsic.c (conv_caf_send): Always report a dependency for
same variables in coarray assignments.
gcc/testsuite/ChangeLog:
2018-05-06 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/85507
Backport from trunk.
* gfortran.dg/coarray_dependency_1.f90: New test.
* gfortran.dg/coarray_lib_comm_1.f90: Fix counting caf-expressions.
Jonathan Wakely [Thu, 3 May 2018 20:39:31 +0000 (21:39 +0100)]
PR libstdc++/85632 fix wraparound in filesystem::space
On 32-bit targets any values over 4GB would wrap and produce the wrong
result.
PR libstdc++/85632 use uintmax_t for arithmetic
* src/filesystem/ops.cc (experimental::filesystem::space): Perform
arithmetic in result type.
* testsuite/experimental/filesystem/operations/space.cc: New.
re PR fortran/81773 ([Coarray] Get with vector index on lhs leads to incorrect caf_get_by_ref() call.)
gcc/fortran/ChangeLog:
2018-04-28 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/81773
PR fortran/83606
Backport from trunk
* dependency.c (gfc_dep_resolver): Coarray indexes are to be ignored
during dependency computation. They define no data dependency.
* trans-array.c (conv_array_index_offset): The stride can not be set
here, prevent fail.
* trans-intrinsic.c (conv_caf_send): Add creation of temporary array
for caf_get's result and copying to the array with vectorial
indexing.
gcc/testsuite/ChangeLog:
2018-04-28 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/81773
PR fortran/83606
Backport from trunk
* gfortran.dg/coarray/get_to_indexed_array_1.f90: New test.
* gfortran.dg/coarray/get_to_indirect_array.f90: New test.
backport: re PR target/83660 (ICE with vec_extract inside expression statement)
2018-04-23 Aaron Sawdey <acsawdey@linux.ibm.com>
Backport from mainline
2018-04-16 Aaron Sawdey <acsawdey@linux.ibm.com>
PR target/83660
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
vec_extract expression as having side effects to make sure it gets
a cleanup point.
2018-04-23 Aaron Sawdey <acsawdey@linux.ibm.com>
Backport from mainline
2018-04-16 Aaron Sawdey <acsawdey@linux.ibm.com>
PR target/83660
* gcc.target/powerpc/pr83660.C: New test.
Eric Botcazou [Mon, 23 Apr 2018 20:31:17 +0000 (20:31 +0000)]
re PR middle-end/85496 (internal compiler error: in emit_move_insn, at expr.c:3722)
PR middle-end/85496
* expr.c (store_field): In the bitfield case, if the value comes from
a function call and is returned in registers by means of a PARALLEL,
do not change the mode of the temporary unless BLKmode and VOIDmode.
Instruction pattern for setting the FPSCR expects the input value to be
in a register. However, __builtin_arm_set_fpscr expander does not ensure
that this is the case and as a result GCC ICEs when the builtin is
called with a constant literal.
This commit fixes the builtin to force the input value into a register.
It also remove the unneeded volatile in the existing fpscr test and
fixes the function prototype.
2018-04-18 Thomas Preud'homme <thomas.preudhomme@arm.com>
Backport from mainline
2018-04-11 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
PR target/85261
* config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
into register.
gcc/testsuite/
PR target/85261
* gcc.target/arm/fpscr.c: Add call to __builtin_arm_set_fpscr with
literal value. Expect 2 MCR instruction. Fix function prototype.
Remove volatile keyword.
H.J. Lu [Mon, 16 Apr 2018 19:11:13 +0000 (19:11 +0000)]
i386: Don't generate alias for function return thunk
Function return thunks shouldn't be aliased to indirect branch thunks
since indirect branch thunks are placed in COMDAT section and a COMDAT
section with indirect branch may not have function return thunk. This
patch generates function return thunks directly.
gcc/
Backport from mainline
PR target/84574
* config/i386/i386.c (indirect_thunk_needed): Update comments.
(indirect_thunk_bnd_needed): Likewise.
(indirect_thunks_used): Likewise.
(indirect_thunks_bnd_used): Likewise.
(indirect_return_needed): New.
(indirect_return_bnd_needed): Likewise.
(output_indirect_thunk_function): Add a bool argument for
function return.
(output_indirect_thunk_function): Don't generate alias for
function return thunk.
(ix86_code_end): Call output_indirect_thunk_function to generate
function return thunks.
(ix86_output_function_return): Set indirect_return_bnd_needed
and indirect_return_needed instead of indirect_thunk_bnd_needed
and indirect_thunk_needed.
gcc/testsuite/
Backport from mainline
PR target/84574
* gcc.target/i386/ret-thunk-9.c: Expect __x86_return_thunk
label instead of __x86_indirect_thunk label.
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