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Fix "use of uninitialized variable" static analyzer warnings. NFCI. 

Add "unreachable" default cases like we do for the other switch()s in X86MCInstLower::Lower
This commit is contained in:
Simon Pilgrim 2020-01-06 16:17:05 +00:00
parent ea5abf1453
commit 5bcc747393
1 changed files with 2 additions and 0 deletions
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2
llvm/lib/Target/X86/X86MCInstLower.cpp
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@ -569,6 +569,7 @@ void X86MCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const {
if (OutMI.getOperand(OutMI.getNumOperands() - 1).getImm() == 0) {
unsigned NewOpc;
switch (OutMI.getOpcode()) {
default: llvm_unreachable("Invalid opcode");
case X86::VPCMPBZ128rmi: NewOpc = X86::VPCMPEQBZ128rm; break;
case X86::VPCMPBZ128rmik: NewOpc = X86::VPCMPEQBZ128rmk; break;
case X86::VPCMPBZ128rri: NewOpc = X86::VPCMPEQBZ128rr; break;
@ -640,6 +641,7 @@ void X86MCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const {
if (OutMI.getOperand(OutMI.getNumOperands() - 1).getImm() == 6) {
unsigned NewOpc;
switch (OutMI.getOpcode()) {
default: llvm_unreachable("Invalid opcode");
case X86::VPCMPBZ128rmi: NewOpc = X86::VPCMPGTBZ128rm; break;
case X86::VPCMPBZ128rmik: NewOpc = X86::VPCMPGTBZ128rmk; break;
case X86::VPCMPBZ128rri: NewOpc = X86::VPCMPGTBZ128rr; break;