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| author | Richard Guenther <rguenther@suse.de> | 2006-10-28 11:30:41 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2006-10-28 11:30:41 +0000 |
| commit | 4d81bf84358f0f905b606a5cb27777e614d213e1 (patch) | |
| tree | 984f65a3da9766999d6ccf8748f98e89fbad2338 /gcc/doc/md.texi | |
| parent | 6f16dafb641b6c935c94f87c8ceaac9458dadc72 (diff) | |
| download | gcc-4d81bf84358f0f905b606a5cb27777e614d213e1.zip gcc-4d81bf84358f0f905b606a5cb27777e614d213e1.tar.gz gcc-4d81bf84358f0f905b606a5cb27777e614d213e1.tar.bz2 | |
re PR target/28806 (lround is not expanded inline to SSE conversion sequence)
2006-10-28 Richard Guenther <rguenther@suse.de>
PR target/28806
* builtins.c (expand_builtin_int_roundingfn_2): Expand
BUILT_IN_LROUND and BUILT_IN_LLROUND from here.
(expand_builtin): Adjust likewise.
* genopinit.c (optabs[]): Add lround optab.
* optabs.c (init_optabs): Initialize lround_optab.
* optabs.h (enum convert_optab_index): Add COI_lround.
(lround_optab): Define.
* config/i386/i386-protos.h (ix86_expand_lround): Declare.
* config/i386/i386.c (ix86_sse_copysign_to_positive): New
static function.
(ix86_expand_lround): New function.
* config/i386/i386.md (lround<mode>di2, lround<mode>si2):
New expanders.
* doc/md.texi (lroundMN2): Document.
* gcc.target/i386/math-torture/lround.c: New testcase.
From-SVN: r118105
Diffstat (limited to 'gcc/doc/md.texi')
| -rw-r--r-- | gcc/doc/md.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index a41391c..7b55db7 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -3708,6 +3708,12 @@ Convert operand 1 (valid for floating point mode @var{m}) to fixed point mode @var{n} as a signed number according to the current rounding mode and store in operand 0 (which has mode @var{n}). +@cindex @code{lround@var{m}@var{n}2} +@item @samp{lround@var{m}2} +Convert operand 1 (valid for floating point mode @var{m}) to fixed +point mode @var{n} as a signed number rounding to nearest and away +from zero and store in operand 0 (which has mode @var{n}). + @cindex @code{copysign@var{m}3} instruction pattern @item @samp{copysign@var{m}3} Store a value with the magnitude of operand 1 and the sign of operand |