[llvm] 6ff1ea3 - Fix "use of uninitialized variable" static analyzer warning. NFCI.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2020-01-07T12:06:54Z
New Revision: 6ff1ea3244c543ad24fc99c7f4979db2f2078593

URL: https://github.com/llvm/llvm-project/commit/6ff1ea3244c543ad24fc99c7f4979db2f2078593
DIFF: https://github.com/llvm/llvm-project/commit/6ff1ea3244c543ad24fc99c7f4979db2f2078593.diff

LOG: Fix "use of uninitialized variable" static analyzer warning. NFCI.

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/R600InstrInfo.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp b/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp
index 11dd249f8ada..346296c77377 100644
--- a/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/R600InstrInfo.cpp
@@ -541,7 +541,7 @@ R600InstrInfo::fitsReadPortLimitations(const std::vector<MachineInstr *> &IG,
 
   std::vector<std::vector<std::pair<int, unsigned>>> IGSrcs;
   ValidSwizzle.clear();
-  unsigned ConstCount;
+  unsigned ConstCount = 0;
   BankSwizzle TransBS = ALU_VEC_012_SCL_210;
   for (unsigned i = 0, e = IG.size(); i < e; ++i) {
     IGSrcs.push_back(ExtractSrcs(*IG[i], PV, ConstCount));