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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-08-04 12:05:16 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-08-04 12:05:16 +0000 |
| commit | 75311b7b4dbb284e7539c0c62331387f3c4cd1ec (patch) | |
| tree | d44a1ce6a1fcb67f4cb4286ffd5e2ecbde8a2fa9 /lib/Target/X86/X86InstrFragmentsSIMD.td | |
| parent | f3e3417e652420a2880fe1efa98ff11936f082e1 (diff) | |
| download | llvm-75311b7b4dbb284e7539c0c62331387f3c4cd1ec.tar.gz llvm-75311b7b4dbb284e7539c0c62331387f3c4cd1ec.tar.bz2 llvm-75311b7b4dbb284e7539c0c62331387f3c4cd1ec.tar.xz | |
X86: Turn fp selects into mask operations.
double test(double a, double b, double c, double d) { return a<b ? c : d; }
before:
_test:
ucomisd %xmm0, %xmm1
ja LBB0_2
movaps %xmm3, %xmm2
LBB0_2:
movaps %xmm2, %xmm0
after:
_test:
cmpltsd %xmm1, %xmm0
andpd %xmm0, %xmm2
andnpd %xmm3, %xmm0
orpd %xmm2, %xmm0
Small speedup on Benchmarks/SmallPT
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187706 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrFragmentsSIMD.td')
| -rw-r--r-- | lib/Target/X86/X86InstrFragmentsSIMD.td | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrFragmentsSIMD.td b/lib/Target/X86/X86InstrFragmentsSIMD.td index 8f10d949cf..4aa8777bdf 100644 --- a/lib/Target/X86/X86InstrFragmentsSIMD.td +++ b/lib/Target/X86/X86InstrFragmentsSIMD.td @@ -47,6 +47,8 @@ def X86for : SDNode<"X86ISD::FOR", SDTFPBinOp, [SDNPCommutative, SDNPAssociative]>; def X86fxor : SDNode<"X86ISD::FXOR", SDTFPBinOp, [SDNPCommutative, SDNPAssociative]>; +def X86fandn : SDNode<"X86ISD::FANDN", SDTFPBinOp, + [SDNPCommutative, SDNPAssociative]>; def X86frsqrt : SDNode<"X86ISD::FRSQRT", SDTFPUnaryOp>; def X86frcp : SDNode<"X86ISD::FRCP", SDTFPUnaryOp>; def X86fsrl : SDNode<"X86ISD::FSRL", SDTX86FPShiftOp>; |