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| author | geoffk <geoffk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-05-14 21:18:13 +0000 |
|---|---|---|
| committer | geoffk <geoffk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-05-14 21:18:13 +0000 |
| commit | ee90778f3a312638933098ec6a63b65fb05b86f6 (patch) | |
| tree | df6d96007a36c9c9bd1d22176cfd5ce6465ced5f /gcc/optabs.c | |
| parent | 97a3fa2d9f15bd09a79966aa8c31715e0e0f5090 (diff) | |
| download | gcc-ee90778f3a312638933098ec6a63b65fb05b86f6.tar.gz | |
* optabs.c (expand_float): Don't allow mode widening that causes
double rounding.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33894 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index 0cfe0649d6f..9f9871581aa 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -3888,6 +3888,10 @@ expand_float (to, from, unsignedp) { int doing_unsigned = unsignedp; + if (fmode != GET_MODE (to) + && significand_size (fmode) < GET_MODE_BITSIZE (GET_MODE (from))) + continue; + icode = can_float_p (fmode, imode, unsignedp); if (icode == CODE_FOR_nothing && imode != GET_MODE (from) && unsignedp) icode = can_float_p (fmode, imode, 0), doing_unsigned = 0; |