diff options
| author | Andrew Stubbs <ams@codesourcery.com> | 2011-08-19 14:41:34 +0000 |
|---|---|---|
| committer | Andrew Stubbs <ams@gcc.gnu.org> | 2011-08-19 14:41:34 +0000 |
| commit | ff63d754c170a5540fd48fa76428da3fc9e0c073 (patch) | |
| tree | 26a12e3f6880c3f74c043a86eb86c912e2b606fc /gcc/tree-ssa-math-opts.c | |
| parent | db719f507b09c42d169a49f0383b54f32e482606 (diff) | |
| download | gcc-ff63d754c170a5540fd48fa76428da3fc9e0c073.zip gcc-ff63d754c170a5540fd48fa76428da3fc9e0c073.tar.gz gcc-ff63d754c170a5540fd48fa76428da3fc9e0c073.tar.bz2 | |
tree-ssa-math-opts.c (is_widening_mult_p): Remove FIXME.
2011-08-19 Andrew Stubbs <ams@codesourcery.com>
gcc/
* tree-ssa-math-opts.c (is_widening_mult_p): Remove FIXME.
Ensure the the larger type is the first operand.
gcc/testsuite/
* gcc.target/arm/wmul-7.c: New file.
From-SVN: r177906
Diffstat (limited to 'gcc/tree-ssa-math-opts.c')
| -rw-r--r-- | gcc/tree-ssa-math-opts.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/gcc/tree-ssa-math-opts.c b/gcc/tree-ssa-math-opts.c index 0505603..cc0da29 100644 --- a/gcc/tree-ssa-math-opts.c +++ b/gcc/tree-ssa-math-opts.c @@ -2054,9 +2054,17 @@ is_widening_mult_p (gimple stmt, *type2_out = *type1_out; } - /* FIXME: remove this restriction. */ - if (TYPE_PRECISION (*type1_out) != TYPE_PRECISION (*type2_out)) - return false; + /* Ensure that the larger of the two operands comes first. */ + if (TYPE_PRECISION (*type1_out) < TYPE_PRECISION (*type2_out)) + { + tree tmp; + tmp = *type1_out; + *type1_out = *type2_out; + *type2_out = tmp; + tmp = *rhs1_out; + *rhs1_out = *rhs2_out; + *rhs2_out = tmp; + } return true; } |