tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle _chk variants of memcpy, memmove and memset builtins.
* tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle _chk variants of memcpy, memmove and memset builtins. (maybe_trim_memstar_call): Likewise. * gcc.c-torture/execute/builtins/builtins.exp: Add -fno-tree-dse as DSE compromises several of these tests. * gcc.dg/builtin-stringop-chk-1.c: Similarly. * gcc.dg/memcpy-2.c: Similarly. * gcc.dg/pr40340-1.c: Similarly. * gcc.dg/pr40340-2.c: Similarly. * gcc.dg/pr40340-5.c: Similarly. From-SVN: r272704
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@ -1,3 +1,9 @@
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2019-06-26 Jeff Law <law@redhat.com>
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* tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle _chk variants of
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memcpy, memmove and memset builtins.
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(maybe_trim_memstar_call): Likewise.
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2019-06-26 David Edelsohn <dje.gcc@gmail.com>
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* config/rs6000/rs6000-logue.c: Add #ifndef TARGET_PROFILE_KERNEL.
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@ -1,3 +1,13 @@
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2019-06-26 Jeff Law <law@redhat.com>
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* gcc.c-torture/execute/builtins/builtins.exp: Add -fno-tree-dse
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as DSE compromises several of these tests.
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* gcc.dg/builtin-stringop-chk-1.c: Similarly.
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* gcc.dg/memcpy-2.c: Similarly.
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* gcc.dg/pr40340-1.c: Similarly.
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* gcc.dg/pr40340-2.c: Similarly.
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* gcc.dg/pr40340-5.c: Similarly.
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2019-06-26 Steven G. Kargl <kargl@gcc.gnu.org>
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PR Fortran/90988
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@ -37,7 +37,7 @@ load_lib c-torture.exp
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torture-init
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set-torture-options $C_TORTURE_OPTIONS {{}} $LTO_TORTURE_OPTIONS
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set additional_flags "-fno-tree-loop-distribute-patterns -fno-tracer"
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set additional_flags "-fno-tree-dse -fno-tree-loop-distribute-patterns -fno-tracer"
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if [istarget "powerpc-*-darwin*"] {
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lappend additional_flags "-Wl,-multiply_defined,suppress"
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}
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@ -1,7 +1,7 @@
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/* Test whether buffer overflow warnings for __*_chk builtins
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are emitted properly. */
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/* { dg-do compile } */
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/* { dg-options "-O2 -Wno-format -std=gnu99 -ftrack-macro-expansion=0" } */
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/* { dg-options "-O2 -Wno-format -std=gnu99 -ftrack-macro-expansion=0 -fno-tree-dse" } */
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// { dg-skip-if "packed attribute missing for t" { "epiphany-*-*" } }
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extern void abort (void);
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@ -1,6 +1,6 @@
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/* PR middle-end/38454 */
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/* { dg-do compile } */
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/* { dg-options "-O2" } */
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/* { dg-options "-O2 -fno-tree-dse" } */
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typedef __SIZE_TYPE__ size_t;
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/* PR middle-end/40340 */
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/* { dg-do compile } */
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/* { dg-options "-O2 -Wall -Wno-system-headers" } */
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/* { dg-options "-O2 -Wall -Wno-system-headers -fno-tree-dse" } */
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#include "pr40340.h"
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/* PR middle-end/40340 */
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/* { dg-do compile } */
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/* { dg-options "-O2 -Wall -Wno-system-headers" } */
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/* { dg-options "-O2 -Wall -Wno-system-headers -fno-tree-dse" } */
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#include "pr40340.h"
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/* PR middle-end/40340 */
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/* { dg-do compile } */
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/* { dg-options "-O2 -Wall -Wsystem-headers -g" } */
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/* { dg-options "-O2 -Wall -Wsystem-headers -g -fno-tree-dse" } */
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#define TEST3
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#include "pr40340.h"
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@ -98,6 +98,9 @@ initialize_ao_ref_for_dse (gimple *stmt, ao_ref *write)
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case BUILT_IN_MEMCPY:
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case BUILT_IN_MEMMOVE:
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case BUILT_IN_MEMSET:
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case BUILT_IN_MEMCPY_CHK:
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case BUILT_IN_MEMMOVE_CHK:
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case BUILT_IN_MEMSET_CHK:
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{
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tree size = NULL_TREE;
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if (gimple_call_num_args (stmt) == 3)
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@ -434,6 +437,8 @@ maybe_trim_memstar_call (ao_ref *ref, sbitmap live, gimple *stmt)
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{
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case BUILT_IN_MEMCPY:
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case BUILT_IN_MEMMOVE:
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case BUILT_IN_MEMCPY_CHK:
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case BUILT_IN_MEMMOVE_CHK:
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{
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int head_trim, tail_trim;
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compute_trims (ref, live, &head_trim, &tail_trim, stmt);
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}
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case BUILT_IN_MEMSET:
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case BUILT_IN_MEMSET_CHK:
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{
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int head_trim, tail_trim;
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compute_trims (ref, live, &head_trim, &tail_trim, stmt);
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case BUILT_IN_MEMCPY:
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case BUILT_IN_MEMMOVE:
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case BUILT_IN_MEMSET:
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case BUILT_IN_MEMCPY_CHK:
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case BUILT_IN_MEMMOVE_CHK:
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case BUILT_IN_MEMSET_CHK:
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{
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/* Occasionally calls with an explicit length of zero
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show up in the IL. It's pointless to do analysis
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