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| author | jkh <jkh@FreeBSD.org> | 1996-01-04 04:44:47 +0000 |
|---|---|---|
| committer | jkh <jkh@FreeBSD.org> | 1996-01-04 04:44:47 +0000 |
| commit | 4a90ebf4b4bfc6836e6f3bbfa7634541c5f3a723 (patch) | |
| tree | d1eca4cd2dc38d8c423e16c6dccd83eb76bfdaa6 /gnu | |
| parent | fe185d60f1131bfe94527978a828a6b886b27ae5 (diff) | |
| download | FreeBSD-src-4a90ebf4b4bfc6836e6f3bbfa7634541c5f3a723.zip FreeBSD-src-4a90ebf4b4bfc6836e6f3bbfa7634541c5f3a723.tar.gz | |
Work around optimizer strength reduction bug.
Submitted by: Richard Henderson <richard@atheist.tamu.edu>
Obtained from: bug-gcc@prep.ai.mit.edu
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/usr.bin/cc/cc_int/loop.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gnu/usr.bin/cc/cc_int/loop.c b/gnu/usr.bin/cc/cc_int/loop.c index 73037ae..1e65cde 100644 --- a/gnu/usr.bin/cc/cc_int/loop.c +++ b/gnu/usr.bin/cc/cc_int/loop.c @@ -6079,6 +6079,10 @@ maybe_eliminate_biv_1 (x, insn, bl, eliminate_p, where) else break; +#if 0 /* XXX patch to correct strength-reduction problem from + * Richard Henderson <richard@atheist.tamu.edu> incorporated + * 3 Jan 1996 - jkh@FreeBSD.org + */ if (CONSTANT_P (arg)) { /* First try to replace with any giv that has constant positive @@ -6224,6 +6228,7 @@ maybe_eliminate_biv_1 (x, insn, bl, eliminate_p, where) } #endif } +#endif /* If we get here, the biv can't be eliminated. */ return 0; |
