; RUN: llc < %s -o - -mcpu=generic -march=x86-64 -mattr=+sse4.1 | FileCheck %s -check-prefix=SSE41
; RUN: llc < %s -o - -mcpu=generic -march=x86-64 -mattr=+avx | FileCheck %s -check-prefix=AVX
-define void @pextrb(i8* nocapture %dst, <16 x i8> %foo) {
+; CHECK-LABEL: extract_i8
+define void @extract_i8(i8* nocapture %dst, <16 x i8> %foo) {
; AVX: vpextrb
; SSE41: pextrb
; AVX-NOT: movb
ret void
}
-define void @pextrw(i16* nocapture %dst, <8 x i16> %foo) {
+; CHECK-LABEL: extract_i16
+define void @extract_i16(i16* nocapture %dst, <8 x i16> %foo) {
; AVX: vpextrw
; SSE41: pextrw
; AVX-NOT: movw
; SSE41-NOT: movw
- %vecext = extractelement <8 x i16> %foo, i32 15
+ %vecext = extractelement <8 x i16> %foo, i32 7
+ store i16 %vecext, i16* %dst, align 1
+ ret void
+}
+
+; CHECK-LABEL: extract_i8_undef
+define void @extract_i8_undef(i8* nocapture %dst, <16 x i8> %foo) {
+; AVX-NOT: vpextrb
+; SSE41-NOT: pextrb
+; AVX-NOT: movb
+; SSE41-NOT: movb
+ %vecext = extractelement <16 x i8> %foo, i32 16 ; undef
+ store i8 %vecext, i8* %dst, align 1
+ ret void
+}
+
+; CHECK-LABEL: extract_i16_undef
+define void @extract_i16_undef(i16* nocapture %dst, <8 x i16> %foo) {
+; AVX-NOT: vpextrw
+; SSE41-NOT: pextrw
+; AVX-NOT: movw
+; SSE41-NOT: movw
+ %vecext = extractelement <8 x i16> %foo, i32 9 ; undef
store i16 %vecext, i16* %dst, align 1
ret void
}