fpetrogalli marked 2 inline comments as done.
fpetrogalli added inline comments.


================
Comment at: clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_tbl2-bfloat.c:7
+// RUN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 
-D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -triple aarch64-none-linux-gnu 
-target-feature +sve2 -target-feature +bf16 -fallow-half-arguments-and-returns 
-fsyntax-only -verify -verify-ignore-unexpected=error 
-verify-ignore-unexpected=note %s
+// R UN: %clang_cc1 -D__ARM_FEATURE_SVE -D__ARM_FEATURE_SVE2 
-D__ARM_FEATURE_BF16_SCALAR_ARITHMETIC -DSVE_OVERLOADED_FORMS -triple 
aarch64-none-linux-gnu -target-feature +sve2 -target-feature +bf16 
-fallow-half-arguments-and-returns -fsyntax-only -verify=overload-bf16 
-verify-ignore-unexpected=error -verify-ignore-unexpected=note %s
+
----------------
c-rhodes wrote:
> c-rhodes wrote:
> > fpetrogalli wrote:
> > > I could do with an extra pair of eyes here: I can't figure out why the 
> > > warning raised by this run is not detected by the `overload-bf16-warning` 
> > > below... (Same for the same line I have added in the test for tbx).
> > Ah, it works in the example I linked because `whilerw` / `whilewr` uses the 
> > scalar `bfloat16_t`, whereas this is using sizeless type which is 
> > predicated on `-D__ARM_FEATURE_SVE_BF16` so we get:
> > 
> > ```error: 'error' diagnostics seen but not expected:
> >   File 
> > /home/culrho01/llvm-project/clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_tbl2-bfloat.c
> >  Line 18: unknown type name 'svbfloat16_t'; did you mean 'svfloat16_t'?
> >   File 
> > /home/culrho01/llvm-project/clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_tbl2-bfloat.c
> >  Line 18: unknown type name 'svbfloat16x2_t'; did you mean 
> > 'svfloat16x2_t'?```
> > 
> > I'm not sure if/how we can test this for the overloaded form
> I'm not sure if what I suggested makes sense - trying to do what we've done 
> in the sve2 acle tests where we expect an implicit declaration warning for 
> overloaded/non-overloaded intrinsics if the sve2 feature isn't enabled. I 
> guess it's different for BF16 as the types are guarded on the feature macro 
> in the ACLE, for whatever reason we get the same warning for the 
> non-overloaded intrinsics but an error for the overloaded ones. I think we 
> can be pretty confident `+bf16` is required as the test will fail otherwise, 
> but it's tricky trying to isolate an error implying the macro is missing on 
> the intrinsic. FWIW we don't test this for SVE either, I think we can skip 
> this test for the overloaded form, may as well keep the non-overloaded one in 
> if it works.
Agree. I have removed the overload tests for the warning.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D82429/new/

https://reviews.llvm.org/D82429



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