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| author | Michael Kuperstein <michael.m.kuperstein@intel.com> | 2015-08-25 07:42:09 +0000 |
|---|---|---|
| committer | Michael Kuperstein <michael.m.kuperstein@intel.com> | 2015-08-25 07:42:09 +0000 |
| commit | 8515893be8da22ddd713ccbc79b06409a46ec76a (patch) | |
| tree | 3a8d60e6ef6f790e82f240765147ed1e7a2776ff /clang/lib/Sema/DeclSpec.cpp | |
| parent | 2c8f9c2c23e0cafd7b85a7aec969c949349f747c (diff) | |
| download | bcm5719-llvm-8515893be8da22ddd713ccbc79b06409a46ec76a.tar.gz bcm5719-llvm-8515893be8da22ddd713ccbc79b06409a46ec76a.zip | |
[X86] Fix fptoui conversions
This fixes two issues in x86 fptoui lowering.
1) Makes conversions from f80 go through the right path on AVX-512.
2) Implements an inline sequence for fptoui i64 instead of a library
call. This improves performance by 6X on SSE3+ and 3X otherwise.
Incidentally, it also removes the use of ftol2 for fptoui, which was
wrong to begin with, as ftol2 converts to a signed i64, producing
wrong results for values >= 2^63.
Patch by: mitch.l.bodart@intel.com
Differential Revision: http://reviews.llvm.org/D11316
llvm-svn: 245924
Diffstat (limited to 'clang/lib/Sema/DeclSpec.cpp')
0 files changed, 0 insertions, 0 deletions
