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| author | Richard Stallman <rms@gnu.org> | 1992-09-21 13:33:38 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1992-09-21 13:33:38 +0000 |
| commit | cc4710825df88d6d2475ad25d7decaf02758cd4d (patch) | |
| tree | 927d5f8252f40f6844854624b26eca27cffec5c0 /gcc/combine.c | |
| parent | e404a39a9c7a3867132194bc09c37fa94cf80f86 (diff) | |
| download | gcc-cc4710825df88d6d2475ad25d7decaf02758cd4d.zip gcc-cc4710825df88d6d2475ad25d7decaf02758cd4d.tar.gz gcc-cc4710825df88d6d2475ad25d7decaf02758cd4d.tar.bz2 | |
(make_extraction): Make test whether to use AND or
{SIGN,ZERO}_EXTRACT depend on UNSIGNEDP.
From-SVN: r2202
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index bc1cc9b..05c7c94 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -4631,10 +4631,10 @@ make_extraction (mode, inner, pos, pos_rtx, len, mode, new)); } - /* Unless this isin a COMPARE or we have a funny memory reference, - don't do anything with field extracts starting at the low-order - bit since they are simple AND operations. */ - if (pos == 0 && ! in_dest && ! in_compare && ! spans_byte) + /* Unless this is a COMPARE or we have a funny memory reference, + don't do anything with zero-extending field extracts starting at + the low-order bit since they are simple AND operations. */ + if (pos == 0 && ! in_dest && ! in_compare && ! spans_byte && unsignedp) return 0; /* Get the mode to use should INNER be a MEM, the mode for the position, |