diff options
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 27a46d9..7a734eb 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -741,7 +741,7 @@ reg_used_between_p (const_rtx reg, const_rtx from_insn, const_rtx to_insn) return 0; for (insn = NEXT_INSN (from_insn); insn != to_insn; insn = NEXT_INSN (insn)) - if (INSN_P (insn) + if (NONDEBUG_INSN_P (insn) && (reg_overlap_mentioned_p (reg, PATTERN (insn)) || (CALL_P (insn) && find_reg_fusage (insn, USE, reg)))) return 1; @@ -2148,6 +2148,7 @@ side_effects_p (const_rtx x) case SCRATCH: case ADDR_VEC: case ADDR_DIFF_VEC: + case VAR_LOCATION: return 0; case CLOBBER: @@ -4725,7 +4726,11 @@ canonicalize_condition (rtx insn, rtx cond, int reverse, rtx *earliest, stop if it isn't a single set or if it has a REG_INC note because we don't want to bother dealing with it. */ - if ((prev = prev_nonnote_insn (prev)) == 0 + do + prev = prev_nonnote_insn (prev); + while (prev && DEBUG_INSN_P (prev)); + + if (prev == 0 || !NONJUMP_INSN_P (prev) || FIND_REG_INC_NOTE (prev, NULL_RTX) /* In cfglayout mode, there do not have to be labels at the |