diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2012-09-01 14:36:11 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2012-09-01 14:36:11 +0000 |
| commit | 8efab079194d16204286e3e9810116d55bec86a8 (patch) | |
| tree | cee6a5093a88e780f042060809786d566e495c1e /gnu | |
| parent | 83e4db67070efa626e571460b84aa03672ff9832 (diff) | |
Bounds check before addressing call_used_regs[], avoids segfaults in
fixup_match_2() on landisk building mysql; gcc PR #28467
help and prodding jsg@, ok kettenis@
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/gcc/gcc/regmove.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gnu/gcc/gcc/regmove.c b/gnu/gcc/gcc/regmove.c index 84c811a1d64..008aa48dd32 100644 --- a/gnu/gcc/gcc/regmove.c +++ b/gnu/gcc/gcc/regmove.c @@ -1033,7 +1033,7 @@ fixup_match_2 (rtx insn, rtx dst, rtx src, rtx offset) if (REG_N_CALLS_CROSSED (REGNO (src)) == 0) break; - if (call_used_regs [REGNO (dst)] + if ((HARD_REGISTER_P (dst) && call_used_regs [REGNO (dst)]) || find_reg_fusage (p, CLOBBER, dst)) break; } |