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Switch SDTUnaryArithWithFlags to being modeled as a two-result 

ISD node.  The only change in the generated isel code are comments
like:

<                 // Src: (X86dec_flag:i16 GR16:i16:$src)
---
>                 // Src: (X86dec_flag:i16:i32 GR16:i16:$src)

because now it knows that X86dec_flag returns both an i16 (for the result)
and an i32 (for EFLAGS) in this case.  Wewt.

llvm-svn: 99369
This commit is contained in:
Chris Lattner 2010-03-24 00:47:47 +00:00
parent f9f54eab43
commit db1ac3cf3e
1 changed files with 4 additions and 2 deletions
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6
llvm/lib/Target/X86/X86InstrInfo.td
View File

@ -28,8 +28,9 @@ def SDTX86Cmov : SDTypeProfile<1, 4,
SDTCisVT<3, i8>, SDTCisVT<4, i32>]>;
// Unary and binary operator instructions that set EFLAGS as a side-effect.
def SDTUnaryArithWithFlags : SDTypeProfile<1, 1,
[SDTCisInt<0>]>;
def SDTUnaryArithWithFlags : SDTypeProfile<2, 1,
[SDTCisInt<0>, SDTCisVT<1, i32>]>;
def SDTBinaryArithWithFlags : SDTypeProfile<1, 2,
[SDTCisSameAs<0, 1>,
SDTCisSameAs<0, 2>,
@ -167,6 +168,7 @@ def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
[SDNPCommutative]>;
def X86umul_flag : SDNode<"X86ISD::UMUL", SDTUnaryArithWithFlags,
[SDNPCommutative]>;
def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,