2018-02-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/84512
* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
Do not use the estimate returned from record_stmt_cost for
the scalar iteration cost but sum properly using add_stmt_cost.
* gcc.dg/tree-ssa/pr84512.c: New testcase.
From-SVN: r258036
2018-02-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/84466
* graphite-scop-detection.c (scop_detection::stmt_simple_for_scop_p):
Adjust last change to less strictly validate use operands.
From-SVN: r258035
2018-02-27 Martin Liska <mliska@suse.cz>
PR gcov-profile/84548
* gcov.c (process_file): Allow partial overlap and consider it
also as group functions.
(output_lines): Properly calculate range of lines for a group.
2018-02-27 Martin Liska <mliska@suse.cz>
PR gcov-profile/84548
* g++.dg/gcov/pr84548.C: New test.
From-SVN: r258033
This patch stops preserving scope blocks just because they are inlined
function scopes, when cleaning up unused scope blocks. This change
was introduced along with IEPM, but it preserved lots of blocks, and
output debug information for them, although no code from the inlined
function remained after optimization.
The additional preserved blocks took up compile-time memory, and
significant disk space and link time, in some cases more than 25%.
This is deemed excessive, compared with the reasonably small benefit
of allowing one to single-step into an inlined function using a
view-capable debugger.
There was another way of marking inlined function scopes as unused,
based on the markers referencing them during stmt scanning, but that
still preserved too much.
So, this patch restores the pre-IEPM logic of preservation of scopes.
Should a scope block referenced by an inline entry marker be found to
be unused in remove_unused_scope_block_p, the marker will be cleaned
up right after that, in clear_unused_block_pointer, so we won't keep
a dangling reference to a dropped block.
for gcc/ChangeLog
* tree-ssa-live.c (remove_unused_scope_block_p): Do not
preserve inline entry blocks for the sake of debug inline
entry point markers alone.
(remove_unused_locals): Suggest in comments a better place to
force the preservation of inline entry blocks that are
otherwise unused, but do not preserve them.
From-SVN: r258026
PR debug/83917
* config/i386/i386-asm.h (PACKAGE_VERSION, PACKAGE_NAME,
PACKAGE_STRING, PACKAGE_TARNAME, PACKAGE_URL): Undefine between
inclusion of auto-target.h and auto-host.h.
(USE_GAS_CFI_DIRECTIVES): Define if not defined already based on
__GCC_HAVE_DWARF2_CFI_ASM.
(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
cfi_def_cfa_register, cfi_def_cfa, cfi_register, cfi_offset, cfi_push,
cfi_pop): Define.
* config/i386/cygwin.S: Don't include auto-host.h here, just
define USE_GAS_CFI_DIRECTIVES to 1 or 0 and include i386-asm.h.
(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
cfi_def_cfa_register, cfi_register, cfi_push, cfi_pop): Remove.
* config/i386/resms64fx.h: Add cfi_* directives.
* config/i386/resms64x.h: Likewise.
From-SVN: r258010
Revision 257992 removed the bool argument from ix86_output_indirect_jmp.
Update comments to reflect it.
* config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
From-SVN: r258005
PR rtl-optimization/83496
* reorg.c (steal_delay_list_from_target): Change REDUNDANT array from
booleans to RTXes. Call fix_reg_dead_note on every non-null element.
(steal_delay_list_from_fallthrough): Call fix_reg_dead_note on a
redundant insn, if any.
(relax_delay_slots): Likewise.
(update_reg_unused_notes): Rename REDUNDANT_INSN to OTHER_INSN.
From-SVN: r257996
This patch prevents pattern-matching of fold-left SLP reduction chains,
which the previous patch for 83965 didn't handle properly. It only
stops the last statement in the group from being matched, but that's
enough to cause the group to be dissolved later.
A better fix would be to put all the information about the reduction
on the the first statement in the reduction chain, so that every
statement in the group can tell what the group is doing. That doesn't
seem like stage 4 material though.
2018-02-26 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
PR tree-optimization/83965
* tree-vect-patterns.c (vect_reassociating_reduction_p): Assume
that grouped statements are part of a reduction chain. Return
true if the statement is not marked as a reduction itself but
is part of a group.
(vect_recog_dot_prod_pattern): Don't check whether the statement
is part of a group here.
(vect_recog_sad_pattern): Likewise.
(vect_recog_widen_sum_pattern): Likewise.
gcc/testsuite/
PR tree-optimization/83965
* gcc.dg/vect/pr83965-2.c: New test.
From-SVN: r257995
When -mfunction-return= is used, simple_return_pop_internal should pop
return address into ECX register, adjust stack by bytes to pop from stack
and jump to the return thunk via ECX register.
Tested on i686 and x86-64.
PR target/84530
* config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
the bool argument.
(ix86_output_indirect_function_return): New prototype.
(ix86_split_simple_return_pop_internal): Likewise.
* config/i386/i386.c (indirect_return_via_cx): New.
(indirect_return_via_cx_bnd): Likewise.
(indirect_thunk_name): Handle return va CX_REG.
(output_indirect_thunk_function): Create alias for
__x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
(ix86_output_indirect_jmp): Remove the bool argument.
(ix86_output_indirect_function_return): New function.
(ix86_split_simple_return_pop_internal): Likewise.
* config/i386/i386.md (*indirect_jump): Don't pass false
to ix86_output_indirect_jmp.
(*tablejump_1): Likewise.
(simple_return_pop_internal): Change it to define_insn_and_split.
Call ix86_split_simple_return_pop_internal to split it for
-mfunction-return=.
(simple_return_indirect_internal): Call
ix86_output_indirect_function_return instead of
ix86_output_indirect_jmp.
gcc/testsuite/
PR target/84530
* gcc.target/i386/ret-thunk-22.c: New test.
* gcc.target/i386/ret-thunk-23.c: Likewise.
* gcc.target/i386/ret-thunk-24.c: Likewise.
* gcc.target/i386/ret-thunk-25.c: Likewise.
* gcc.target/i386/ret-thunk-26.c: Likewise.
From-SVN: r257992
PR c++/84537
* name-lookup.c (suggest_alternative_in_explicit_scope): Return false
if name is error node.
* g++.dg/parse/error60.C: New test.
From-SVN: r257988
This fixes a GCC-8 regression that we accidentally switched off frame
pointers in the AArch64 backend when changing the defaults in the common
parts of the code. This breaks an ABI decision that was made in GCC at
the dawn of the port with respect to having a frame pointer at all
times. If we really want to turn this off lets have a discussion around
that separately.
For now turn this back on and I believe this will leave PR84521 latent
again with -fomit-frame-pointer and (hopefully) make the ruby issue go
away. I'm asking Sudi to pick that up.
Bootstrapped and regression tested on AArch64-none-linux-gnu but I see
one regression in gcc.c-torture/execute/960419-2.c which needs to be
looked at next (PR84528, thanks Kyrill).
Ok to put in and then look at PR84528 ?
2018-02-26 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
PR target/84521
* common/config/aarch64/aarch64-common.c
(aarch_option_optimization_table[]): Switch
off fomit-frame-pointer
2018-02-26 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
PR target/84521
* gcc.target/aarch64/lr_free_2.c: Revert changes in
r254814 disabling -fomit-frame-pointer by default.
* gcc.target/aarch64/spill_1.c: Likewise.
* gcc.target/aarch64/test_frame_11.c: Likewise.
* gcc.target/aarch64/test_frame_12.c: Likewise.
* gcc.target/aarch64/test_frame_13.c: Likewise.
* gcc.target/aarch64/test_frame_14.c: Likewise.
* gcc.target/aarch64/test_frame_15.c: Likewise.
* gcc.target/aarch64/test_frame_3.c: Likewise.
* gcc.target/aarch64/test_frame_5.c: Likewise.
* gcc.target/aarch64/test_frame_9.c: Likewise.
From-SVN: r257984
Some command-line options have been deprecated for a long time. This
patch adds a warning for them, so that we can remove them in GCC 9
without surprising any users.
* config/rs6000/rs6000.opt (mvrsave=no, mvrsave=yes, isel=no,
isel=yes): Warn for these deprecated options.
From-SVN: r257975
2018-02-25 Paul Thomas <pault@gcc.gnu.org>
PR fortran/84523
* trans-intrinsic.c (gfc_conv_allocated): If the argument se
has a pre block, add it to the expression pre block.
2018-02-25 Paul Thomas <pault@gcc.gnu.org>
PR fortran/84523
* gfortran.dg/pr84523.f90: New test.
From-SVN: r257970
2018-02-25 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/78238
* gfortran.h (gfc_integer_4_kind): Define.
* resolve.c (resolve_select_type): Make sure that the
kind of c->high is gfc_integer_4_kind.
2018-02-25 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/78238
* gfortran.dg/select_type_40.f90: New test.
From-SVN: r257968
2018-02-24 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/30792
* decl.c (gfc_match_data): Check for invalid substring in
data-implied-do
2018-02-24 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/30792
* gfortran.dg/data_substring.f90: New test.
From-SVN: r257962
