[X86] Fix gcc7 -Wunused-but-set-variable warning. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350701 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp b/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
index 62afcb7..64e6fb9 100644
--- a/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
+++ b/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
@@ -540,7 +540,6 @@
unsigned InstrOffset = 0;
unsigned StackAdjust = 0;
unsigned StackSize = 0;
- unsigned PrevStackSize = 0;
unsigned NumDefCFAOffsets = 0;
for (unsigned i = 0, e = Instrs.size(); i != e; ++i) {
@@ -588,7 +587,6 @@
// L0:
// .cfi_def_cfa_offset 80
//
- PrevStackSize = StackSize;
StackSize = std::abs(Inst.getOffset()) / StackDivide;
++NumDefCFAOffsets;
break;