diff options
Diffstat (limited to 'llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.cpp | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.cpp index 028e9af..37dd0c4 100644 --- a/llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.cpp +++ b/llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.cpp @@ -32,6 +32,21 @@ WebAssemblyInstrInfo::WebAssemblyInstrInfo(const WebAssemblySubtarget &STI) WebAssembly::ADJCALLSTACKUP), RI(STI.getTargetTriple()) {} +bool WebAssemblyInstrInfo::isReallyTriviallyReMaterializable( + const MachineInstr *MI, AliasAnalysis *AA) const { + switch (MI->getOpcode()) { + case WebAssembly::CONST_I32: + case WebAssembly::CONST_I64: + case WebAssembly::CONST_F32: + case WebAssembly::CONST_F64: + // isReallyTriviallyReMaterializableGeneric misses these because of the + // ARGUMENTS implicit def, so we manualy override it here. + return true; + default: + return false; + } +} + void WebAssemblyInstrInfo::copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, DebugLoc DL, unsigned DestReg, @@ -39,9 +54,10 @@ void WebAssemblyInstrInfo::copyPhysReg(MachineBasicBlock &MBB, // This method is called by post-RA expansion, which expects only pregs to // exist. However we need to handle both here. auto &MRI = MBB.getParent()->getRegInfo(); - const TargetRegisterClass *RC = TargetRegisterInfo::isVirtualRegister(DestReg) ? - MRI.getRegClass(DestReg) : - MRI.getTargetRegisterInfo()->getMinimalPhysRegClass(SrcReg); + const TargetRegisterClass *RC = + TargetRegisterInfo::isVirtualRegister(DestReg) + ? MRI.getRegClass(DestReg) + : MRI.getTargetRegisterInfo()->getMinimalPhysRegClass(SrcReg); unsigned CopyLocalOpcode; if (RC == &WebAssembly::I32RegClass) @@ -145,9 +161,7 @@ unsigned WebAssemblyInstrInfo::InsertBranch(MachineBasicBlock &MBB, assert(Cond.size() == 2 && "Expected a flag and a successor block"); if (Cond[0].getImm()) { - BuildMI(&MBB, DL, get(WebAssembly::BR_IF)) - .addOperand(Cond[1]) - .addMBB(TBB); + BuildMI(&MBB, DL, get(WebAssembly::BR_IF)).addOperand(Cond[1]).addMBB(TBB); } else { BuildMI(&MBB, DL, get(WebAssembly::BR_UNLESS)) .addOperand(Cond[1]) |