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| author | Richard Earnshaw <rearnsha@arm.com> | 2018-07-31 17:36:36 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2018-07-31 17:36:36 +0000 |
| commit | f3debef33629f8e8a95b5ed0cb79296e7a0282df (patch) | |
| tree | f5992c2819cabd23432a44ebf8afd245a075eed1 /gcc/targhooks.h | |
| parent | c0111dc43591647ef6d619a1fc222a8e9a06e058 (diff) | |
targhooks - provide an alternative hook for targets that never execute speculatively
This hook adds an alternative implementation for the target hook
TARGET_HAVE_SPECULATION_SAFE_VALUE; it can be used by targets that have no
CPU implementations that execute code speculatively. All that is needed for
such targets now is to add:
#undef TARGET_HAVE_SPECULATION_SAFE_VALUE
#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed.
to where you have your other target hooks and you're done.
gcc:
* targhooks.h (speculation_safe_value_not_needed): New prototype.
* targhooks.c (speculation_safe_value_not_needed): New function.
* target.def (have_speculation_safe_value): Update documentation.
* doc/tm.texi: Regenerated.
From-SVN: r263175
Diffstat (limited to 'gcc/targhooks.h')
| -rw-r--r-- | gcc/targhooks.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/targhooks.h b/gcc/targhooks.h index ba53778d468..f92ca5ca997 100644 --- a/gcc/targhooks.h +++ b/gcc/targhooks.h @@ -282,6 +282,7 @@ extern void default_select_early_remat_modes (sbitmap); extern tree default_preferred_else_value (unsigned, tree, unsigned, tree *); extern bool default_have_speculation_safe_value (bool); +extern bool speculation_safe_value_not_needed (bool); extern rtx default_speculation_safe_value (machine_mode, rtx, rtx, rtx); #endif /* GCC_TARGHOOKS_H */ |