[llvm] [PowerPC] Fix vector_shuffle combines when inputs are scalar_to_vector of differing types. (PR #80784)

[zhijian lin via llvm-commits]

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@@ -170,42 +170,42 @@ define <2 x i64> @test_v16i8_none(i8 %arg1, ptr nocapture noundef readonly %b) {
 ; CHECK-LE-P8-NEXT:    lxvd2x vs0, 0, r4
 ; CHECK-LE-P8-NEXT:    xxswapd v2, vs0
 ; CHECK-LE-P8-NEXT:    mtfprd f0, r3
-; CHECK-LE-P8-NEXT:    xxmrgld v2, v2, vs0
+; CHECK-LE-P8-NEXT:    xxpermdi v2, v2, vs0, 2
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diggerlin wrote:

it should be `xxpermdi v2, v2, vs0, 0` ?

https://github.com/llvm/llvm-project/pull/80784