[SystemZ] Add CodeGen support for v2f64

This adds ABI and CodeGen support for the v2f64 type, which is natively
supported by z13 instructions.

Based on a patch by Richard Sandiford.

llvm-svn: 236522

1 files changed, 20 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/SystemZ/vec-perm-08.ll b/llvm/test/CodeGen/SystemZ/vec-perm-08.ll
index 4d06377f5a3..b5220ab6712 100644
--- a/llvm/test/CodeGen/SystemZ/vec-perm-08.ll
+++ b/llvm/test/CodeGen/SystemZ/vec-perm-08.ll
@@ -128,3 +128,23 @@ define <2 x i64> @f11(<2 x i64> %val1, <2 x i64> %val2) {
                        <2 x i32> <i32 3, i32 0>
   ret <2 x i64> %ret
 }
+
+; Test a high1/low2 permute for v2f64.
+define <2 x double> @f14(<2 x double> %val1, <2 x double> %val2) {
+; CHECK-LABEL: f14:
+; CHECK: vpdi %v24, %v24, %v26, 1
+; CHECK: br %r14
+  %ret = shufflevector <2 x double> %val1, <2 x double> %val2,
+                       <2 x i32> <i32 0, i32 3>
+  ret <2 x double> %ret
+}
+
+; Test a low2/high1 permute for v2f64.
+define <2 x double> @f15(<2 x double> %val1, <2 x double> %val2) {
+; CHECK-LABEL: f15:
+; CHECK: vpdi %v24, %v26, %v24, 4
+; CHECK: br %r14
+  %ret = shufflevector <2 x double> %val1, <2 x double> %val2,
+                       <2 x i32> <i32 3, i32 0>
+  ret <2 x double> %ret
+}