diff options
| author | Dan Gohman <gohman@apple.com> | 2010-05-18 21:54:15 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-05-18 21:54:15 +0000 |
| commit | f8c1ef0510801867ffcdd055d4ee361d3ad6ea40 (patch) | |
| tree | 35cb950c39557007a4cb0e5116e169ebb240f9de | |
| parent | 2abc93d0fba932e59ddc745cb34420189e37fbea (diff) | |
Teach mode load folding and unfolding code about CMP32ri8 and friends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104068 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index d4ef62bece..cb6cad3e63 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2598,9 +2598,9 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, switch (MI->getOpcode()) { default: return NULL; case X86::TEST8rr: NewOpc = X86::CMP8ri; break; - case X86::TEST16rr: NewOpc = X86::CMP16ri; break; - case X86::TEST32rr: NewOpc = X86::CMP32ri; break; - case X86::TEST64rr: NewOpc = X86::CMP64ri32; break; + case X86::TEST16rr: NewOpc = X86::CMP16ri8; break; + case X86::TEST32rr: NewOpc = X86::CMP32ri8; break; + case X86::TEST64rr: NewOpc = X86::CMP64ri8; break; } // Change to CMPXXri r, 0 first. MI->setDesc(get(NewOpc)); @@ -2808,16 +2808,22 @@ bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI, switch (DataMI->getOpcode()) { default: break; case X86::CMP64ri32: + case X86::CMP64ri8: case X86::CMP32ri: + case X86::CMP32ri8: case X86::CMP16ri: + case X86::CMP16ri8: case X86::CMP8ri: { MachineOperand &MO0 = DataMI->getOperand(0); MachineOperand &MO1 = DataMI->getOperand(1); if (MO1.getImm() == 0) { switch (DataMI->getOpcode()) { default: break; + case X86::CMP64ri8: case X86::CMP64ri32: NewOpc = X86::TEST64rr; break; + case X86::CMP32ri8: case X86::CMP32ri: NewOpc = X86::TEST32rr; break; + case X86::CMP16ri8: case X86::CMP16ri: NewOpc = X86::TEST16rr; break; case X86::CMP8ri: NewOpc = X86::TEST8rr; break; } |