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| author | Jakub Jelinek <jakub@redhat.com> | 2002-11-20 10:43:20 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2002-11-20 10:43:20 +0100 |
| commit | bc02f8d3f74173fa46f74934ebcc1fc3501b94da (patch) | |
| tree | 1e060a427d4c2565937c168544fb2f897a55521f /gcc/combine.c | |
| parent | 13b42735b6bfac31dfb14246e995f68b9c16e08f (diff) | |
| download | gcc-bc02f8d3f74173fa46f74934ebcc1fc3501b94da.zip gcc-bc02f8d3f74173fa46f74934ebcc1fc3501b94da.tar.gz gcc-bc02f8d3f74173fa46f74934ebcc1fc3501b94da.tar.bz2 | |
combine.c (force_to_mode): Only replace with (not Y) if all bits in fuller_mask (not just mask) are set in C.
* combine.c (force_to_mode): Only replace with (not Y) if all bits in fuller_mask
(not just mask) are set in C.
* gcc.c-torture/execute/20021118-3.c: New test.
From-SVN: r59295
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 8ce9d10..a0214d1 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -6978,10 +6978,10 @@ force_to_mode (x, mode, mask, reg, just_select) return force_to_mode (x, mode, mask, reg, next_select); } - /* Similarly, if C contains every bit in the mask, then we may + /* Similarly, if C contains every bit in the fuller_mask, then we may replace with (not Y). */ if (GET_CODE (XEXP (x, 0)) == CONST_INT - && ((INTVAL (XEXP (x, 0)) | (HOST_WIDE_INT) mask) + && ((INTVAL (XEXP (x, 0)) | (HOST_WIDE_INT) fuller_mask) == INTVAL (XEXP (x, 0)))) { x = simplify_gen_unary (NOT, GET_MODE (x), |