[PowerPC] Pre-commit test for D107428. NFC.

llvm/test/CodeGen/PowerPC/vec_int_to_double_shuffle.ll

@@ -0,0 +1,39 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mcpu=pwr8 -mtriple=powerpc64le-unknown-unknown \
+; RUN:   -verify-machineinstrs < %s | FileCheck --check-prefix=CHECK-LE %s
+; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-unknown \
+; RUN:   -verify-machineinstrs < %s | FileCheck --check-prefix=CHECK-BE %s
+
+define <2 x double> @foo(<4 x i32> %s) {
+; CHECK-LE-LABEL: foo:
+; CHECK-LE:       # %bb.0: # %entry
+; CHECK-LE-NEXT:    xvcvsxwdp 34, 34
+; CHECK-LE-NEXT:    blr
+;
+; CHECK-BE-LABEL: foo:
+; CHECK-BE:       # %bb.0: # %entry
+; CHECK-BE-NEXT:    xxsldwi 0, 34, 34, 3
+; CHECK-BE-NEXT:    xvcvsxwdp 34, 0
+; CHECK-BE-NEXT:    blr
+entry:
+  %0 = shufflevector <4 x i32> %s, <4 x i32> undef, <2 x i32> <i32 1, i32 3>
+  %1 = sitofp <2 x i32> %0 to <2 x double>
+  ret <2 x double> %1
+}
+
+define <2 x double> @bar(<4 x i32> %s) {
+; CHECK-LE-LABEL: bar:
+; CHECK-LE:       # %bb.0: # %entry
+; CHECK-LE-NEXT:    xvcvuxwdp 34, 34
+; CHECK-LE-NEXT:    blr
+;
+; CHECK-BE-LABEL: bar:
+; CHECK-BE:       # %bb.0: # %entry
+; CHECK-BE-NEXT:    xxsldwi 0, 34, 34, 3
+; CHECK-BE-NEXT:    xvcvuxwdp 34, 0
+; CHECK-BE-NEXT:    blr
+entry:
+  %0 = shufflevector <4 x i32> %s, <4 x i32> undef, <2 x i32> <i32 1, i32 3>
+  %1 = uitofp <2 x i32> %0 to <2 x double>
+  ret <2 x double> %1
+}