[clang] [NFC] Add additional checks to test for vec_pack_to_short_fp32 (PR #130324)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-powerpc

Author: Lei Huang (lei137)

<details>
<summary>Changes</summary>

Update tests in pref for IR changes that will be introduced in https://github.com/llvm/llvm-project/pull/129923

---
Full diff: https://github.com/llvm/llvm-project/pull/130324.diff


1 Files Affected:

- (modified) clang/test/CodeGen/PowerPC/builtins-ppc-p9vector.c (+8-2) 


``````````diff
diff --git a/clang/test/CodeGen/PowerPC/builtins-ppc-p9vector.c b/clang/test/CodeGen/PowerPC/builtins-ppc-p9vector.c
index b55a522ed2608..68d32ee14c8fa 100644
--- a/clang/test/CodeGen/PowerPC/builtins-ppc-p9vector.c
+++ b/clang/test/CodeGen/PowerPC/builtins-ppc-p9vector.c
@@ -853,10 +853,16 @@ vector unsigned char test73(void) {
 vector unsigned short test74(void) {
 // CHECK-BE: @llvm.ppc.vsx.xvcvsphp(<4 x float>
 // CHECK-BE: @llvm.ppc.vsx.xvcvsphp(<4 x float>
-// CHECK-BE: @llvm.ppc.altivec.vperm
+// CHECK-BE: [[REG0:%[0-9]+]] = call <4 x i32> @llvm.ppc.altivec.vperm
+// CHECK-BE-NEXT: [[REG1:%[0-9]+]] = bitcast <4 x i32> [[REG0]] to <4 x float>
+// CHECK-BE-NEXT: [[REG2:%[0-9]+]] = bitcast <4 x float> [[REG1]] to <8 x i16>
+// CHECK-BE-NEXT: ret <8 x i16> [[REG2]]
 // CHECK: @llvm.ppc.vsx.xvcvsphp(<4 x float>
 // CHECK: @llvm.ppc.vsx.xvcvsphp(<4 x float>
-// CHECK: @llvm.ppc.altivec.vperm
+// CHECK: [[REG0:%[0-9]+]] = call <4 x i32> @llvm.ppc.altivec.vperm
+// CHECK-NEXT: [[REG1:%[0-9]+]] = bitcast <4 x i32> [[REG0]] to <4 x float>
+// CHECK-NEXT: [[REG2:%[0-9]+]] = bitcast <4 x float> [[REG1]] to <8 x i16>
+// CHECK-NEXT: ret <8 x i16> [[REG2]]
   return vec_pack_to_short_fp32(vfa, vfb);
 }
 vector unsigned int test75(void) {

``````````

</details>


https://github.com/llvm/llvm-project/pull/130324