[llvm] [AArch64][SVE2] Lower read-after-write mask to whilerw (PR #114028)

[David Green via llvm-commits]

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@@ -1,17 +1,17 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
-; RUN: llc %s -mtriple=aarch64-linux-gnu -mattr=+sve2 -o - | FileCheck %s
-; RUN: llc %s -mtriple=aarch64-linux-gnu -mattr=+sve -o - | FileCheck %s --check-prefix=CHECK-NOSVE2
+; RUN: llc %s -mtriple=aarch64-linux-gnu -mattr=+sve2 -o - | FileCheck %s --check-prefixes=CHECK,CHECK-SVE2
+; RUN: llc %s -mtriple=aarch64-linux-gnu -mattr=+sve -o - | FileCheck %s --check-prefixes=CHECK,CHECK-NOSVE2
 
 define <vscale x 16 x i1> @whilewr_8(ptr noalias %a, ptr %b, ptr %c, i32 %n) {
-; CHECK-LABEL: whilewr_8:
-; CHECK:       // %bb.0: // %entry
-; CHECK-NEXT:    whilewr p0.b, x1, x2
-; CHECK-NEXT:    ret
-;
+; CHECK-SVE2-LABEL: whilewr_8:
+; CHECK-SVE2:       // %bb.0: // %entry
+; CHECK-SVE2-NEXT:    whilewr p0.b, x1, x2
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davemgreen wrote:

I think this should be `whilewr p0.b, x2, x1`?

https://github.com/llvm/llvm-project/pull/114028