================
@@ -113,44 +113,58 @@ void LoongArchDAGToDAGISel::Select(SDNode *Node) {
APInt SplatValue, SplatUndef;
unsigned SplatBitSize;
bool HasAnyUndefs;
- unsigned Op;
+ unsigned Op = 0;
----------------
ylzsx wrote:
Without initialization, a warning will occur. I'm not sure why it didn't happen
before.
```
[44/185] Building CXX object
lib/Target/LoongArch/CMakeFiles/LLVMLoongArchCodeGen.dir/LoongArchISelDAGToDAG.cpp.o
/home/yangzhaoxin/workspace/flang-test/llvm-project/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp:131:7:
warning: variable 'Op' is used uninitialized whenever switch default is taken
[-Wsometimes-uninitialized]
131 | default:
| ^~~~~~~
/home/yangzhaoxin/workspace/flang-test/llvm-project/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp:150:36:
note: uninitialized use occurs here
150 | Res = CurDAG->getMachineNode(Op, DL, ResTy, Imm);
| ^~
/home/yangzhaoxin/workspace/flang-test/llvm-project/llvm/lib/Target/LoongArch/LoongArchISelDAGToDAG.cpp:116:16:
note: initialize the variable 'Op' to silence this warning
116 | unsigned Op;
| ^
| = 0
1 warning generated.
```
https://github.com/llvm/llvm-project/pull/159258
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