| Issue |
109941
|
| Summary |
[SDAG] [X86_64] Instruction selection fails when incorrect locality argument is used for __builtin_ia32_prefetchi.
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
venkataramananhashkumar
|
[Reference](https://godbolt.org/z/8PKdb475M)
Test case:
---snip---
int bar();
int foo(){
__builtin_ia32_prefetchi(&bar,0);
return 0;
}
--Snip--
Flag : -march=znver5
--Snip--
fatal error: error in backend: Cannot select: 0xd34d640: ch = Prefetch<(load (s8) from @bar)> 0xd2944a0, 0xd34d720, TargetConstant:i32<0>, TargetConstant:i32<0>, TargetConstant:i32<0>, example.c:3:1
0xd34d720: i64 = X86ISD::WrapperRIP TargetGlobalAddress:i64<ptr @bar> 0, example.c:3:1
0xd34d6b0: i64 = TargetGlobalAddress<ptr @bar> 0, example.c:3:1
0xd34d5d0: i32 = TargetConstant<0>
0xd34d5d0: i32 = TargetConstant<0>
0xd34d5d0: i32 = TargetConstant<0>
In function: foo
--Snip---
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