1 files changed, 55 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/swaps-le-7.ll b/test/CodeGen/PowerPC/swaps-le-7.ll
new file mode 100644
index 000000000000..0c6970f5b17e
--- /dev/null
+++ b/test/CodeGen/PowerPC/swaps-le-7.ll
@@ -0,0 +1,55 @@
+; RUN: llc -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -O3 < %s | FileCheck %s
+;
+; This is a regression test based on https://llvm.org/bugs/show_bug.cgi?id=27735
+;
+
+@G1 = global <2 x double> <double 2.0, double -10.0>
+@G2 = global <2 x double> <double 3.0, double 4.0>
+@G3 = global <2 x double> <double 5.0, double 6.0>
+@G4 = global <2 x double> <double 7.0, double 8.0>
+
+; CHECK-LABEL: @zg
+; CHECK: xxspltd
+; CHECK-NEXT: xxspltd
+; CHECK-NEXT: xxswapd
+; CHECK-NEXT: xvmuldp
+; CHECK-NEXT: xvmuldp
+; CHECK-NEXT: xvsubdp
+; CHECK-NEXT: xvadddp
+; CHECK-NEXT: xxpermdi
+; CHECK-NEXT: xvsubdp
+; CHECK-NEXT: xxswapd
+; CHECK-NEXT: stxvd2x
+; CHECK-NEXT: blr
+
+; Function Attrs: noinline
+define void @zg(i8* %.G0011_640.0, i8* %.G0012_642.0, <2 x double>* %JJ, <2 x double>* %.ka0000_391, double %.unpack, double %.unpack66) #0 {
+L.JA291:
+  %Z.L.JA291.2 = load <2 x double>, <2 x double>* %.ka0000_391, align 16
+  store <2 x double> %Z.L.JA291.2, <2 x double>* %JJ, align 8
+  %Z.L.JA291.3 = bitcast i8* %.G0012_642.0 to <2 x double>*
+  %Z.L.JA291.4 = load <2 x double>, <2 x double>* %Z.L.JA291.3, align 1
+  %.elt136 = bitcast i8* %.G0011_640.0 to double*
+  %.unpack137 = load double, double* %.elt136, align 1
+  %.elt138 = getelementptr inbounds i8, i8* %.G0011_640.0, i64 8
+  %Z.L.JA291.5 = bitcast i8* %.elt138 to double*
+  %.unpack139 = load double, double* %Z.L.JA291.5, align 1
+  %Z.L.JA291.6 = insertelement <2 x double> undef, double %.unpack137, i32 0
+  %Z.L.JA291.7 = insertelement <2 x double> %Z.L.JA291.6, double %.unpack137, i32 1
+  %Z.L.JA291.8 = fmul <2 x double> %Z.L.JA291.2, %Z.L.JA291.7
+  %Z.L.JA291.9 = shufflevector <2 x double> %Z.L.JA291.2, <2 x double> undef, <2 x i32> <i32 1, i32 0>
+  %Z.L.JA291.10 = insertelement <2 x double> undef, double %.unpack139, i32 0
+  %Z.L.JA291.11 = insertelement <2 x double> %Z.L.JA291.10, double %.unpack139, i32 1
+  %Z.L.JA291.12 = fmul <2 x double> %Z.L.JA291.9, %Z.L.JA291.11
+  %Z.L.JA291.13 = fsub <2 x double> %Z.L.JA291.8, %Z.L.JA291.12
+  %Z.L.JA291.14 = fadd <2 x double> %Z.L.JA291.8, %Z.L.JA291.12
+  %Z.L.JA291.15 = shufflevector <2 x double> %Z.L.JA291.13, <2 x double> %Z.L.JA291.14, <2 x i32> <i32 0, i32 3>
+  %Z.L.JA291.16 = fsub <2 x double> %Z.L.JA291.4, %Z.L.JA291.15
+  %Z.L.JA291.17 = bitcast i8* %.G0012_642.0 to <2 x double>*
+  store <2 x double> %Z.L.JA291.16, <2 x double>* %Z.L.JA291.17, align 8
+  %.. = bitcast <2 x double>* %JJ to i32*
+  %.pre = load i32, i32* %.., align 32
+  ret void
+}
+
+attributes #0 = { noinline }
+\ No newline at end of file