| commit | d1db176e82fa02188471ca014582016b0b1ace7b | [log] [tgz] |
|---|---|---|
| author | Matt Arsenault <Matthew.Arsenault@amd.com> | Tue Jul 15 08:30:49 2025 +0900 |
| committer | GitHub <noreply@github.com> | Tue Jul 15 08:30:49 2025 +0900 |
| tree | 91527e20aec78847ac1f288880ee2f6650defbf9 | |
| parent | 085e8f1e520b91f5ed40e5b09f458bb2c4d7c0e0 [diff] |
ARM: Stop setting sincos_stret calling convention (#147457)
This was going out of its way to explicitly mark these as
ARM_AAPCS_VFP. This has been explicitly set since 8b40366b54bd4,
where the commit message states that "sincos" (not sincos_stret)
has a special calling convention. However, that commit also sets
the calling convention for all libcalls to ARM_AAPCS_VFP, and
getEffectiveCallingConv returns the same for CCC anyway in tests
using isWatchABI triples.
The net result of this appears to be a change in behavior when
using -float-abi=soft with isWatchABI, which have no tests so
I assume this is a theoretical combination.
If I assert
```
if (getTargetMachine().getTargetTriple().isWatchABI()) {
assert(!useSoftFloat());
assert(getEffectiveCallingConv(CallingConv::C, false) == CallingConv::ARM_AAPCS_VFP);
}
```
Only 2 tests fail the second condition, which look like copy paste
accidents
using v7k triples with linux and only needed a filler triple. This is a
consequence
of strangely using the target architecture in place of the OS ABI check,
as was done in 042a6c1fe19caf48af7e287dc8f6fd5fec158093
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