Readd the regression test from r236584. Calling convention fixed to linux.

llvm-svn: 236610

1 files changed, 51 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/extractelement-index.ll b/llvm/test/CodeGen/X86/extractelement-index.ll
new file mode 100644
index 00000000000..ab3ff8ed435
--- /dev/null
+++ b/llvm/test/CodeGen/X86/extractelement-index.ll
@@ -0,0 +1,51 @@
+; RUN: llc < %s -mtriple=x86_64-pc-linux             | FileCheck %s -check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-pc-linux -mattr=+avx | FileCheck %s -check-prefix=AVX
+
+
+; CHECK-LABEL: extractelement_index_1:
+define i8 @extractelement_index_1(<32 x i8> %a) nounwind {
+  ; X64:       movaps
+  ; AVX:       vpextrb $1
+  %b = extractelement <32 x i8> %a, i256 1
+  ret i8 %b
+}
+
+; CHECK-LABEL: extractelement_index_2:
+define i32 @extractelement_index_2(<8 x i32> %a) nounwind {
+  ; X64:       pshufd
+  ; AVX:       vextractf128 $1
+  ; AVX-NEXT:  vpextrd      $3
+  %b = extractelement <8 x i32> %a, i64 7
+  ret i32 %b
+}
+
+; CHECK-LABEL: extractelement_index_3:
+define i32 @extractelement_index_3(<8 x i32> %a) nounwind {
+  ; CHECK-NOT: pextr
+  %b = extractelement <8 x i32> %a, i64 15
+  ret i32 %b
+}
+
+; CHECK-LABEL: extractelement_index_4:
+define i32 @extractelement_index_4(<8 x i32> %a) nounwind {
+  ; X64:       movd
+  ; AVX:       vextractf128 $1
+  ; AVX-NEXT:  vmovd
+  %b = extractelement <8 x i32> %a, i256 4
+  ret i32 %b
+}
+
+; CHECK-LABEL: extractelement_index_5:
+define i8 @extractelement_index_5(<32 x i8> %a, i256 %i) nounwind {
+  ; X64:       movaps
+  ; AVX:       vmovaps
+  %b = extractelement <32 x i8> %a, i256 %i
+  ret i8 %b
+}
+
+; CHECK-LABEL: extractelement_index_6:
+define i8 @extractelement_index_6(<32 x i8> %a) nounwind {
+  ; CHECK-NOT: pextr
+  %b = extractelement <32 x i8> %a, i256 -1
+  ret i8 %b
+}
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