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| author | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-01-28 22:15:50 +0000 |
|---|---|---|
| committer | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-01-28 22:15:50 +0000 |
| commit | a455589cd089b44cb788a1d9369cee33bf22f264 (patch) | |
| tree | 1dfa2c8546c777952456edd8ef924b98d60849b7 /gcc/combine.c | |
| parent | 2ee310145edd1b91b9464825cc1aed9c9710ad58 (diff) | |
| download | gcc-a455589cd089b44cb788a1d9369cee33bf22f264.tar.gz | |
* combine.c (nonzero_bits): Fix check for negative divide operands.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@62029 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 4f03d008e7e..90c4482e33a 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -8369,14 +8369,15 @@ nonzero_bits (x, mode) { unsigned HOST_WIDE_INT nz0 = nonzero_bits (XEXP (x, 0), mode); unsigned HOST_WIDE_INT nz1 = nonzero_bits (XEXP (x, 1), mode); + int sign_index = GET_MODE_BITSIZE (GET_MODE (x)) - 1; int width0 = floor_log2 (nz0) + 1; int width1 = floor_log2 (nz1) + 1; int low0 = floor_log2 (nz0 & -nz0); int low1 = floor_log2 (nz1 & -nz1); HOST_WIDE_INT op0_maybe_minusp - = (nz0 & ((HOST_WIDE_INT) 1 << (mode_width - 1))); + = (nz0 & ((HOST_WIDE_INT) 1 << sign_index)); HOST_WIDE_INT op1_maybe_minusp - = (nz1 & ((HOST_WIDE_INT) 1 << (mode_width - 1))); + = (nz1 & ((HOST_WIDE_INT) 1 << sign_index)); unsigned int result_width = mode_width; int result_low = 0; |