| Issue |
181117
|
| Summary |
[AggressiveInstCombine] Invalid trunc creation in store merge optimization
|
| Labels |
crash,
llvm:instcombine
|
| Assignees |
nikic
|
| Reporter |
nikic
|
```llvm
target triple = "x86_64-unknown-linux-gnu"
define void @test(i56 %arg, ptr %p) {
%lo = trunc i56 %arg to i32
store i32 %lo, ptr %p, align 4
%shr = lshr i56 %arg, 32
%hi = trunc i56 %shr to i32
%p.4 = getelementptr i8, ptr %p, i64 4
store i32 %hi, ptr %p.4, align 4
ret void
}
```
> opt: /home/npopov/repos/llvm-project/llvm/lib/IR/Instructions.cpp:3043: static CastInst *llvm::CastInst::Create(Instruction::CastOps, Value *, Type *, const Twine &, InsertPosition): Assertion `castIsValid(op, S, Ty) && "Invalid cast!"' failed.
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