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| author | Jakub Jelinek <jakub@redhat.com> | 2012-05-30 08:53:46 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-05-30 08:53:46 +0200 |
| commit | 667c517b378a6e09c4790aa2111492c9609996ba (patch) | |
| tree | 716cc6742c97b8f4aa23addb4244350e75ac4657 /gcc/combine.c | |
| parent | eea58adb130013762b585f149c2dfaddb2072818 (diff) | |
| download | gcc-667c517b378a6e09c4790aa2111492c9609996ba.tar.gz | |
re PR rtl-optimization/53519 (ice in do_SUBST, at combine.c:707)
PR rtl-optimization/53519
* combine.c (simplify_shift_const_1) <case NOT>: Use constm1_rtx
instead of GEN_INT (GET_MODE_MASK (mode)) as second operand of XOR.
* gcc.c-torture/compile/pr53519.c: New test.
From-SVN: r188001
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index d23ecfcbccd..d6897a17958 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -10284,8 +10284,7 @@ simplify_shift_const_1 (enum rtx_code code, enum machine_mode result_mode, break; /* Make this fit the case below. */ - varop = gen_rtx_XOR (mode, XEXP (varop, 0), - GEN_INT (GET_MODE_MASK (mode))); + varop = gen_rtx_XOR (mode, XEXP (varop, 0), constm1_rtx); continue; case IOR: |