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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-11-28 16:57:20 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-11-28 16:57:20 +0000 |
| commit | ece5bc358a243fcbc74f92883f37110980b0ac04 (patch) | |
| tree | bc944c6aa0b39c8f4ff26cc78af83752bc625708 /llvm/lib | |
| parent | 1bfcba8ceaf3c8dc9b2443e61b8649c3506ca2f0 (diff) | |
| download | bcm5719-llvm-ece5bc358a243fcbc74f92883f37110980b0ac04.tar.gz bcm5719-llvm-ece5bc358a243fcbc74f92883f37110980b0ac04.zip | |
[X86][X87] Tag FTST x87 instruction scheduler class
Looking through Agner, FTST is very similar to generic float compare behaviour, so I've added them to the existing IIC_FCOMI (WriteFAdd) tags.
llvm-svn: 319184
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrFPStack.td | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86InstrFPStack.td b/llvm/lib/Target/X86/X86InstrFPStack.td index 1ac62a74bce..00e85553254 100644 --- a/llvm/lib/Target/X86/X86InstrFPStack.td +++ b/llvm/lib/Target/X86/X86InstrFPStack.td @@ -327,7 +327,8 @@ def TST_Fp64 : FpIf64<(outs), (ins RFP64:$src), OneArgFP, []>; def TST_Fp80 : FpI_<(outs), (ins RFP80:$src), OneArgFP, []>; } // hasSideEffects -def TST_F : FPI<0xD9, MRM_E4, (outs), (ins), "ftst">; +let SchedRW = [WriteFAdd] in +def TST_F : FPI<0xD9, MRM_E4, (outs), (ins), "ftst", IIC_FCOMI>; } // Defs = [FPSW] // Versions of FP instructions that take a single memory operand. Added for the |
