Change the peep for EXTRACT_VECTOR_ELT of BUILD_PAIR to look for

the new CONCAT_VECTORS node type instead, as that's what legalize
uses now. And add a peep for EXTRACT_VECTOR_ELT of INSERT_VECTOR_ELT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38503 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 18 insertions, 0 deletions

diff --git a/test/CodeGen/X86/peep-vector-extract-concat.ll b/test/CodeGen/X86/peep-vector-extract-concat.ll
new file mode 100644
index 0000000..6880fc3
--- /dev/null
+++ b/test/CodeGen/X86/peep-vector-extract-concat.ll
@@ -0,0 +1,6 @@
+; RUN: llvm-as < %s | llc -march=x86-64 | grep {shufps \$3, %xmm0, %xmm0}
+
+define float @foo(<8 x float> %a) {
+  %c = extractelement <8 x float> %a, i32 3
+  ret float %c
+}
diff --git a/test/CodeGen/X86/peep-vector-extract-insert.ll b/test/CodeGen/X86/peep-vector-extract-insert.ll
new file mode 100644
index 0000000..9aeb4f1
--- /dev/null
+++ b/test/CodeGen/X86/peep-vector-extract-insert.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=x86-64 | grep {pxor %xmm0, %xmm0} | wc -l | grep 2
+
+define float @foo(<4 x float> %a) {
+  %b = insertelement <4 x float> %a, float 0.0, i32 3
+  %c = extractelement <4 x float> %b, i32 3
+  ret float %c
+}
+define float @bar(float %a) {
+  %b = insertelement <4 x float> <float 3.4, float 4.5, float 0.0, float 9.2>, float %a, i32 3
+  %c = extractelement <4 x float> %b, i32 2
+  ret float %c
+}