[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, 28 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/SystemZ/vec-move-04.ll b/llvm/test/CodeGen/SystemZ/vec-move-04.ll
index f43c0b71491..4e75d21dc96 100644
--- a/llvm/test/CodeGen/SystemZ/vec-move-04.ll
+++ b/llvm/test/CodeGen/SystemZ/vec-move-04.ll
@@ -110,6 +110,34 @@ define <2 x i64> @f12(<2 x i64> %val, i64 %element, i32 %index) {
   ret <2 x i64> %ret
 }
 
+; Test v2f64 insertion into the first element.
+define <2 x double> @f16(<2 x double> %val, double %element) {
+; CHECK-LABEL: f16:
+; CHECK: vpdi %v24, %v0, %v24, 1
+; CHECK: br %r14
+  %ret = insertelement <2 x double> %val, double %element, i32 0
+  ret <2 x double> %ret
+}
+
+; Test v2f64 insertion into the last element.
+define <2 x double> @f17(<2 x double> %val, double %element) {
+; CHECK-LABEL: f17:
+; CHECK: vpdi %v24, %v24, %v0, 0
+; CHECK: br %r14
+  %ret = insertelement <2 x double> %val, double %element, i32 1
+  ret <2 x double> %ret
+}
+
+; Test v2f64 insertion into a variable element.
+define <2 x double> @f18(<2 x double> %val, double %element, i32 %index) {
+; CHECK-LABEL: f18:
+; CHECK: lgdr [[REG:%r[0-5]]], %f0
+; CHECK: vlvgg %v24, [[REG]], 0(%r2)
+; CHECK: br %r14
+  %ret = insertelement <2 x double> %val, double %element, i32 %index
+  ret <2 x double> %ret
+}
+
 ; Test v16i8 insertion into a variable element plus one.
 define <16 x i8> @f19(<16 x i8> %val, i8 %element, i32 %index) {
 ; CHECK-LABEL: f19: