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| author | Evan Cheng <evan.cheng@apple.com> | 2013-01-29 02:32:37 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2013-01-29 02:32:37 +0000 |
| commit | 8688a58c53b46d2dda9bf50dafd5195790a7ed58 (patch) | |
| tree | 68af412e23ec1d2cb1ddf89586314551b36bd82d /lib/Target/X86/X86Subtarget.h | |
| parent | 8232ece5c1e57efe54342fb35610497d50bf894f (diff) | |
| download | llvm-8688a58c53b46d2dda9bf50dafd5195790a7ed58.tar.gz llvm-8688a58c53b46d2dda9bf50dafd5195790a7ed58.tar.bz2 llvm-8688a58c53b46d2dda9bf50dafd5195790a7ed58.tar.xz | |
Teach SDISel to combine fsin / fcos into a fsincos node if the following
conditions are met:
1. They share the same operand and are in the same BB.
2. Both outputs are used.
3. The target has a native instruction that maps to ISD::FSINCOS node or
the target provides a sincos library call.
Implemented the generic optimization in sdisel and enabled it for
Mac OSX. Also added an additional optimization for x86_64 Mac OSX by
using an alternative entry point __sincos_stret which returns the two
results in xmm0 / xmm1.
rdar://13087969
PR13204
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173755 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.h')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h index b325f62126..eb587a5761 100644 --- a/lib/Target/X86/X86Subtarget.h +++ b/lib/Target/X86/X86Subtarget.h @@ -328,6 +328,10 @@ public: /// memset with zero passed as the second argument. Otherwise it /// returns null. const char *getBZeroEntry() const; + + /// This function returns true if the target has sincos() routine in its + /// compiler runtime or math libraries. + bool hasSinCos() const; /// enablePostRAScheduler - run for Atom optimization. bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, |