[llvm] r360525 - FixupLEAPass::fixupIncDec - non-LEA opcodes should not happen here. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Sat May 11 09:02:34 2019
New Revision: 360525

URL: http://llvm.org/viewvc/llvm-project?rev=360525&view=rev
Log:
FixupLEAPass::fixupIncDec - non-LEA opcodes should not happen here. NFCI.

Matches what we do in other functions and fixes scan-build warning about uninitialized NewOpcode variable.

Modified:
    llvm/trunk/lib/Target/X86/X86FixupLEAs.cpp

Modified: llvm/trunk/lib/Target/X86/X86FixupLEAs.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86FixupLEAs.cpp?rev=360525&r1=360524&r2=360525&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86FixupLEAs.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86FixupLEAs.cpp Sat May 11 09:02:34 2019
@@ -366,6 +366,8 @@ bool FixupLEAPass::fixupIncDec(MachineBa
     unsigned NewOpcode;
     bool isINC = MI.getOperand(1 + X86::AddrDisp).getImm() == 1;
     switch (MI.getOpcode()) {
+    default:
+      llvm_unreachable("Unexpected LEA instruction");
     case X86::LEA32r:
     case X86::LEA64_32r:
       NewOpcode = isINC ? X86::INC32r : X86::DEC32r;