diff options
| author | rms <rms@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-01-24 01:06:11 +0000 |
|---|---|---|
| committer | rms <rms@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-01-24 01:06:11 +0000 |
| commit | b77a8efdb6580226f6660e1c9b7fd13b114b5e3e (patch) | |
| tree | a5e46f72fd01df99dd60644ff3ee861550a6cbe3 /gcc | |
| parent | 1fdbf33ae43155381fb8a565e047f9491f1c2f99 (diff) | |
| download | gcc-b77a8efdb6580226f6660e1c9b7fd13b114b5e3e.tar.gz | |
(apply_distributive_law): Don't mess with float arith.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@3317 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/combine.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index b99b8e9f2f0..33bac48f439 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -5526,6 +5526,12 @@ apply_distributive_law (x) rtx tem; enum rtx_code inner_code; + /* Distributivity is not true for floating point. + It can change the value. So don't do it. + -- rms and moshier@world.std.com. */ + if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) + return x; + /* The outer operation can only be one of the following: */ if (code != IOR && code != AND && code != XOR && code != PLUS && code != MINUS) |