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| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-19 11:19:16 +0000 |
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| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-19 11:19:16 +0000 |
| commit | 88a00894a2c731bdd60d9e5bea743125a48fdc51 (patch) | |
| tree | 7a67687eb802bd0acdf8b565692414e4370ea6b1 /gcc/cfgbuild.c | |
| parent | d30774f57dd6a50e22cae0e57340f1e45d007901 (diff) | |
| download | gcc-88a00894a2c731bdd60d9e5bea743125a48fdc51.tar.gz | |
PR rtl-optimization/29841
* cfgbuild.c (control_flow_insn_p): Return TRUE for unconditional
trap instructions.
* sched-deps.c (sched_analyze_insn): Prevent all non-jump instructions
that may cause control flow transfer from being moved.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@123970 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfgbuild.c')
| -rw-r--r-- | gcc/cfgbuild.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/cfgbuild.c b/gcc/cfgbuild.c index 3d05ebca0b7..642efc31e08 100644 --- a/gcc/cfgbuild.c +++ b/gcc/cfgbuild.c @@ -120,6 +120,11 @@ control_flow_insn_p (rtx insn) || can_throw_internal (insn)); case INSN: + /* Treat trap instructions like noreturn calls (same provision). */ + if (GET_CODE (PATTERN (insn)) == TRAP_IF + && XEXP (PATTERN (insn), 0) == const1_rtx) + return true; + return (flag_non_call_exceptions && can_throw_internal (insn)); case BARRIER: |