| Issue |
175965
|
| Summary |
[X86] Cannot select TC_RETURN with +retpoline-indirect-calls
|
| Labels |
backend:X86,
crash-on-valid
|
| Assignees |
|
| Reporter |
nikic
|
```llvm
define void @foo(ptr %g) #0 {
tail call void %g()
ret void
}
attributes #0 = { "target-features"="+retpoline-indirect-calls" }
```
`llc -mtriple=x86_64-pc-windows-gnu` (also with `-msvc`) produces:
```
LLVM ERROR: Cannot select: t5: ch = X86ISD::TC_RETURN t0, t2, TargetConstant:i32<0>, RegisterMask:Untyped
t2: i64,ch = CopyFromReg t0, Register:i64 %0
In function: foo
```
This is a regression from LLVM 21.
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