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| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-09-01 07:55:17 +0000 |
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| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-09-01 07:55:17 +0000 |
| commit | 21f157cc56385d395afe69566a0a7add36f2b46d (patch) | |
| tree | 5a705ebdf2c36d7804e4b79756db08491dd2b68f /gcc/config/i386 | |
| parent | a945a2f2fce2eb7eb8bdeae6a8df786569f381d4 (diff) | |
| download | gcc-21f157cc56385d395afe69566a0a7add36f2b46d.tar.gz | |
* config/i386/i386.c (ix86_option_override_internal): Also disable the
STV pass if -mstackrealign is enabled.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@239917 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/i386')
| -rw-r--r-- | gcc/config/i386/i386.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 57c53b9c458..6fa9ea7f77a 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -5472,11 +5472,12 @@ ix86_option_override_internal (bool main_args_p, if (!(opts_set->x_target_flags & MASK_STV)) opts->x_target_flags |= MASK_STV; /* Disable STV if -mpreferred-stack-boundary={2,3} or - -mincoming-stack-boundary={2,3} - the needed + -mincoming-stack-boundary={2,3} or -mstackrealign - the needed stack realignment will be extra cost the pass doesn't take into account and the pass can't realign the stack. */ if (ix86_preferred_stack_boundary < 128 - || ix86_incoming_stack_boundary < 128) + || ix86_incoming_stack_boundary < 128 + || opts->x_ix86_force_align_arg_pointer) opts->x_target_flags &= ~MASK_STV; if (!ix86_tune_features[X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL] && !(opts_set->x_target_flags & MASK_AVX256_SPLIT_UNALIGNED_LOAD)) |