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| author | Richard Stallman <rms@gnu.org> | 1993-06-04 00:45:44 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-06-04 00:45:44 +0000 |
| commit | df6f4086b07f8ffe4cc6dd90cc21056d2cd54d86 (patch) | |
| tree | 66e30638748e5d3f9c90fa6254b1746bc5942a1b /gcc | |
| parent | 12194c388f00739381f3c75737275d6a2862cb37 (diff) | |
| download | gcc-df6f4086b07f8ffe4cc6dd90cc21056d2cd54d86.zip gcc-df6f4086b07f8ffe4cc6dd90cc21056d2cd54d86.tar.gz gcc-df6f4086b07f8ffe4cc6dd90cc21056d2cd54d86.tar.bz2 | |
(num_sign_bit_copies): At end, return 1 if NONZERO has the high bit set.
From-SVN: r4627
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/combine.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 5ac961f..7aa5348 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -6801,7 +6801,7 @@ num_sign_bit_copies (x, mode) return 1; nonzero = nonzero_bits (x, mode); - return (nonzero == GET_MODE_MASK (mode) + return (nonzero & ((HOST_WIDE_INT) 1 << (bitwidth - 1)) ? 1 : bitwidth - floor_log2 (nonzero) - 1); } |