Changes in directory llvm/lib/Target/X86:
X86RegisterInfo.cpp updated: 1.118 -> 1.119
---
Log message:
implement isStoreToStackSlot
---
Diffs of the changes: (+23 -0)
X86RegisterInfo.cpp | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+)
Index: llvm/lib/Target/X86/X86RegisterInfo.cpp
diff -u llvm/lib/Target/X86/X86RegisterInfo.cpp:1.118
llvm/lib/Target/X86/X86RegisterInfo.cpp:1.119
--- llvm/lib/Target/X86/X86RegisterInfo.cpp:1.118 Wed Feb 1 17:02:25 2006
+++ llvm/lib/Target/X86/X86RegisterInfo.cpp Thu Feb 2 14:00:41 2006
@@ -139,6 +139,29 @@
return 0;
}
+unsigned X86RegisterInfo::isStoreToStackSlot(MachineInstr *MI,
+ int &FrameIndex) const {
+ switch (MI->getOpcode()) {
+ default: break;
+ case X86::MOV8mr:
+ case X86::MOV16mr:
+ case X86::MOV32mr:
+ case X86::FpSTP64m:
+ case X86::MOVSSmr:
+ case X86::MOVSDmr:
+ if (MI->getOperand(0).isFrameIndex() && MI->getOperand(1).isImmediate() &&
+ MI->getOperand(2).isRegister() && MI->getOperand(3).isImmediate() &&
+ MI->getOperand(3).getImmedValue() == 1 &&
+ MI->getOperand(4).getReg() == 0 &&
+ MI->getOperand(5).getImmedValue() == 0) {
+ FrameIndex = MI->getOperand(1).getFrameIndex();
+ return MI->getOperand(4).getReg();
+ }
+ break;
+ }
+ return 0;
+}
+
static MachineInstr *MakeMInst(unsigned Opcode, unsigned FrameIndex,
MachineInstr *MI) {
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