zmodem wrote:
This broke code using `modff` on 32-bit x86 Windows, where the runtime library
doesn't provide any `modff` symbol, rather it's implemented inline in `math.h`
(which calls `modf`):
```
>type \src\temp\a.c
#include <math.h>
#include <stdio.h>
float foo(float f) {
float i;
return modff(f, &i);
}
int main() {
printf("%f\n", foo(3.14));
return 0;
}
>build\bin\clang-cl -m32 \src\temp\a.c
a-4184ec.obj : error LNK2019: unresolved external symbol _modff referenced in
function _foo
a.exe : fatal error LNK1120: 1 unresolved externals
clang-cl: error: linker command failed with exit code 1120 (use -v to see
invocation)
```
(See also https://godbolt.org/z/jvfe4zGTj)
I'll back this out for now to unbreak things.
https://github.com/llvm/llvm-project/pull/129885
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