diff options
| author | Hongyu Wang <hongyu.wang@intel.com> | 2024-06-13 00:18:32 +0800 |
|---|---|---|
| committer | Hongyu Wang <hongyu.wang@intel.com> | 2024-06-13 22:04:08 +0800 |
| commit | 83a765768510d1f329887116757d6818d7846717 (patch) | |
| tree | 85884f9afdae7599d7c721ad8d27e7cae21a1944 /gcc/expr.cc | |
| parent | 7fed7e9bbc57d502e141e079a6be2706bdbd4560 (diff) | |
| download | gcc-83a765768510d1f329887116757d6818d7846717.zip gcc-83a765768510d1f329887116757d6818d7846717.tar.gz gcc-83a765768510d1f329887116757d6818d7846717.tar.bz2 | |
[APX CCMP] Add targetm.have_ccmp hook [PR115370]
In cfgexpand, there is an optimization for branch which tests
targetm.gen_ccmp_first == NULL. However for target like x86-64, the
hook was implemented but it does not indicate that ccmp was enabled.
Add a new target hook TARGET_HAVE_CCMP and replace the middle-end
check for the existance of gen_ccmp_first to avoid misoptimization.
gcc/ChangeLog:
PR target/115370
PR target/115463
* target.def (have_ccmp): New target hook.
* targhooks.cc (default_have_ccmp): New function.
* targhooks.h (default_have_ccmp): New prototype.
* doc/tm.texi.in: Add TARGET_HAVE_CCMP.
* doc/tm.texi: Regenerate.
* cfgexpand.cc (expand_gimple_cond): Call targetm.have_ccmp
instead of checking if targetm.gen_ccmp_first exists.
* expr.cc (expand_expr_real_gassign): Likewise.
* config/i386/i386.cc (ix86_have_ccmp): New target hook to
check if APX_CCMP enabled.
(TARGET_HAVE_CCMP): Define.
Diffstat (limited to 'gcc/expr.cc')
| -rw-r--r-- | gcc/expr.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/expr.cc b/gcc/expr.cc index 1baa39b..04bad5e 100644 --- a/gcc/expr.cc +++ b/gcc/expr.cc @@ -11089,7 +11089,7 @@ expand_expr_real_gassign (gassign *g, rtx target, machine_mode tmode, ops.op1 = gimple_assign_rhs2 (g); /* Try to expand conditonal compare. */ - if (targetm.gen_ccmp_first) + if (targetm.have_ccmp ()) { gcc_checking_assert (targetm.gen_ccmp_next != NULL); r = expand_ccmp_expr (g, TYPE_MODE (ops.type)); |