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[WebAssembly] Remove an unused argument from writeSPToMemory (NFC) 

Reviewers: dschuff

Subscribers: dschuff, sbc100, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D50933

llvm-svn: 340230
This commit is contained in:
Heejin Ahn 2018-08-20 23:02:15 +00:00
parent ffbc3e2576
commit c2c33c8e64
1 changed files with 5 additions and 8 deletions
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13
llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
View File

@ -99,7 +99,6 @@ bool WebAssemblyFrameLowering::needsSPWriteback(
static void writeSPToMemory(unsigned SrcReg, MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator &InsertAddr,
MachineBasicBlock::iterator &InsertStore,
const DebugLoc &DL) {
const auto *TII = MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();
@ -121,7 +120,7 @@ WebAssemblyFrameLowering::eliminateCallFramePseudoInstr(
if (I->getOpcode() == TII->getCallFrameDestroyOpcode() &&
needsSPWriteback(MF, MF.getFrameInfo())) {
DebugLoc DL = I->getDebugLoc();
writeSPToMemory(WebAssembly::SP32, MF, MBB, I, I, DL);
writeSPToMemory(WebAssembly::SP32, MF, MBB, I, DL);
}
return MBB.erase(I);
}
@ -194,7 +193,7 @@ void WebAssemblyFrameLowering::emitPrologue(MachineFunction &MF,
.addReg(WebAssembly::SP32);
}
if (StackSize && needsSPWriteback(MF, MFI)) {
writeSPToMemory(WebAssembly::SP32, MF, MBB, InsertPt, InsertPt, DL);
writeSPToMemory(WebAssembly::SP32, MF, MBB, InsertPt, DL);
}
}
@ -214,7 +213,6 @@ void WebAssemblyFrameLowering::emitEpilogue(MachineFunction &MF,
// Restore the stack pointer. If we had fixed-size locals, add the offset
// subtracted in the prolog.
unsigned SPReg = 0;
MachineBasicBlock::iterator InsertAddr = InsertPt;
if (hasBP(MF)) {
auto FI = MF.getInfo<WebAssemblyFunctionInfo>();
SPReg = FI->getBasePointerVreg();
@ -222,9 +220,8 @@ void WebAssemblyFrameLowering::emitEpilogue(MachineFunction &MF,
const TargetRegisterClass *PtrRC =
MRI.getTargetRegisterInfo()->getPointerRegClass(MF);
unsigned OffsetReg = MRI.createVirtualRegister(PtrRC);
InsertAddr =
BuildMI(MBB, InsertPt, DL, TII->get(WebAssembly::CONST_I32), OffsetReg)
.addImm(StackSize);
BuildMI(MBB, InsertPt, DL, TII->get(WebAssembly::CONST_I32), OffsetReg)
.addImm(StackSize);
// In the epilog we don't need to write the result back to the SP32 physreg
// because it won't be used again. We can use a stackified register instead.
SPReg = MRI.createVirtualRegister(PtrRC);
@ -235,5 +232,5 @@ void WebAssemblyFrameLowering::emitEpilogue(MachineFunction &MF,
SPReg = hasFP(MF) ? WebAssembly::FP32 : WebAssembly::SP32;
}
writeSPToMemory(SPReg, MF, MBB, InsertAddr, InsertPt, DL);
writeSPToMemory(SPReg, MF, MBB, InsertPt, DL);
}