[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-01.ll b/llvm/test/CodeGen/SystemZ/vec-perm-01.ll
index 520ff45e7f7..c68958a98a2 100644
--- a/llvm/test/CodeGen/SystemZ/vec-perm-01.ll
+++ b/llvm/test/CodeGen/SystemZ/vec-perm-01.ll
@@ -122,3 +122,23 @@ define <2 x i64> @f11(<2 x i64> %val) {
                        <2 x i32> <i32 1, i32 1>
   ret <2 x i64> %ret
 }
+
+; Test v2f64 splat of the first element.
+define <2 x double> @f15(<2 x double> %val) {
+; CHECK-LABEL: f15:
+; CHECK: vrepg %v24, %v24, 0
+; CHECK: br %r14
+  %ret = shufflevector <2 x double> %val, <2 x double> undef,
+                       <2 x i32> zeroinitializer
+  ret <2 x double> %ret
+}
+
+; Test v2f64 splat of the last element.
+define <2 x double> @f16(<2 x double> %val) {
+; CHECK-LABEL: f16:
+; CHECK: vrepg %v24, %v24, 1
+; CHECK: br %r14
+  %ret = shufflevector <2 x double> %val, <2 x double> undef,
+                       <2 x i32> <i32 1, i32 1>
+  ret <2 x double> %ret
+}