paulwalker-arm added inline comments.

================
Comment at: clang/test/Sema/aarch64-sve2-intrinsics/acle_sve2_imm_n.cpp:25
+{
+  // expected-error-re@+1 3 {{argument value {{[0-9]+}} is outside the valid 
range [0, 7]}}
+  EXPAND_XZM_FUNC(SVE_ACLE_FUNC(svqshlu,_n_s8,,), pg, svundef_s8(), -1);
----------------
RosieSumpter wrote:
> paulwalker-arm wrote:
> > I've not seen this before, presumably it's short hand instead of needing to 
> > repeat multiple identical `expected-error` check lines?  If so, is it worth 
> > using this throughout the test files and essentially only require one 
> > `expected-error` per function or does this only work here because the 
> > `EXPAND...` macro emits its three function calls on the same line?
> Yes it lets you specify how many times you expect the diagnostic to appear, 
> but as you said it only works when the diagnostics are emitted on the same 
> line so I'm not sure there's a way to reduce the number of `expected-error` 
> lines any more than this
OK, thanks for checking.  To be honest I'm not sure why we need the 
`EXPAND_XZM_FUNC` macro given `SVE_ACLE_FUNC` worked fine before.  To my eye it 
kind of ruins the flow, but hey-ho I'll not worry about it.

Assuming I've not screwed up I think you're missing tests for 
`SVE_ACLE_FUNC(svrshrnb,_n_s16,,)` and `SVE_ACLE_FUNC(svrshrnt,_n_s16,,)`.


================
Comment at: 
clang/test/Sema/aarch64-sve2-intrinsics/acle_sve2_imm_rotation.cpp:17-40
+  // expected-error@+1 {{argument should be the value 90 or 270}}
+  SVE_ACLE_FUNC(svcadd,_s8,,)(svundef_s8(), svundef_s8(), 0);
+  // expected-error@+1 {{argument should be the value 90 or 270}}
+  SVE_ACLE_FUNC(svcadd,_u8,,)(svundef_u8(), svundef_u8(), 0);
+  // expected-error@+1 {{argument should be the value 90 or 270}}
+  SVE_ACLE_FUNC(svcadd,_s16,,)(svundef_s16(), svundef_s16(), 0);
+  // expected-error@+1 {{argument should be the value 90 or 270}}
----------------
I know we cannot test every number but `180` seems like a reasonable mistake 
for people to make given the other complex number instructions so perhaps 
alternate between `0` and `180` to give a little more coverage without 
increasing the number of lines.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123605/new/

https://reviews.llvm.org/D123605

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