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| author | Ian Lance Taylor <iant@golang.org> | 2021-09-13 10:37:49 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2021-09-13 10:37:49 -0700 |
| commit | e252b51ccde010cbd2a146485d8045103cd99533 (patch) | |
| tree | e060f101cdc32bf5e520de8e5275db9d4236b74c /gcc/postreload-gcse.c | |
| parent | f10c7c4596dda99d2ee872c995ae4aeda65adbdf (diff) | |
| parent | 104c05c5284b7822d770ee51a7d91946c7e56d50 (diff) | |
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Merge from trunk revision 104c05c5284b7822d770ee51a7d91946c7e56d50.
Diffstat (limited to 'gcc/postreload-gcse.c')
| -rw-r--r-- | gcc/postreload-gcse.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/postreload-gcse.c b/gcc/postreload-gcse.c index 74b635c..6c95d09 100644 --- a/gcc/postreload-gcse.c +++ b/gcc/postreload-gcse.c @@ -549,7 +549,6 @@ oprs_unchanged_p (rtx x, rtx_insn *insn, bool after_insn) return oprs_unchanged_p (XEXP (x, 0), insn, after_insn); case PC: - case CC0: /*FIXME*/ case CONST: CASE_CONST_ANY: case SYMBOL_REF: @@ -780,7 +779,9 @@ record_opr_changes (rtx_insn *insn) EXECUTE_IF_SET_IN_HARD_REG_SET (callee_clobbers, 0, regno, hrsi) record_last_reg_set_info_regno (insn, regno); - if (! RTL_CONST_OR_PURE_CALL_P (insn)) + if (! RTL_CONST_OR_PURE_CALL_P (insn) + || RTL_LOOPING_CONST_OR_PURE_CALL_P (insn) + || can_throw_external (insn)) record_last_mem_set_info (insn); } } |