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| author | Eric Botcazou <ebotcazou@adacore.com> | 2005-11-09 21:34:31 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2005-11-09 21:34:31 +0000 |
| commit | c8e90f4053f0e366630c5147d28d4d9c56e56668 (patch) | |
| tree | ca883f3b1639764277c88f95e1f44f59c48c0459 /gcc/testsuite/gcc.dg | |
| parent | 7ef67393c7454bb93a070d0290b4196c06a93ce8 (diff) | |
| download | gcc-c8e90f4053f0e366630c5147d28d4d9c56e56668.zip gcc-c8e90f4053f0e366630c5147d28d4d9c56e56668.tar.gz gcc-c8e90f4053f0e366630c5147d28d4d9c56e56668.tar.bz2 | |
ifcvt.c (noce_get_alt_condition): Use prev_nonnote_insn.
* ifcvt.c (noce_get_alt_condition): Use prev_nonnote_insn.
(noce_try_abs): Negate if the comparison is reversed.
Look only one instruction backwards for a REG_EQUAL note.
From-SVN: r106706
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/ifcvt-fabs-1.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/ifcvt-fabs-1.c b/gcc/testsuite/gcc.dg/ifcvt-fabs-1.c new file mode 100644 index 0000000..6808a8f --- /dev/null +++ b/gcc/testsuite/gcc.dg/ifcvt-fabs-1.c @@ -0,0 +1,21 @@ +/* { dg-do run } */ +/* { dg-options "-O" } */ +/* { dg-options "-O -march=i686" { target i686-*-* } } */ + +extern void abort(void); + +float foo(float f) +{ + if (f < 0.0f) + f = -f; + + return f; +} + +int main(void) +{ + if (foo (-1.0f) != 1.0f) + abort (); + + return 0; +} |