| Issue |
97896
|
| Summary |
undefined reference to `__truncsfbf2' when compiling ir with clang
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
DigOrDog
|
# Description
When I was compiling this IR with clang, I encountered this error. It seems to be right from a syntactic perspective, which is quite strange. From [half-precision-floating-point](https://clang.llvm.org/docs/LanguageExtensions.html#half-precision-floating-point) document, _bf16 is supported on X86 (when SSE2 is available)(For X86, SSE2 is available on 64-bit and all recent 32-bit processors.)
```
define i64 @f(bfloat %CastFPTrunc, ptr %x) {
BB:
store bfloat %CastFPTrunc, ptr %x, align 2
ret i64 0
}
define i32 @main() {
entry:
ret i32 0
}
```
https://godbolt.org/z/MbcMvcWe6
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