[InstCombine] transform more extract/insert pairs into shuffles (PR2109)

[oota-llvm.git] / test / Transforms / InstCombine / insert-extract-shuffle.ll

diff --git a/test/Transforms/InstCombine/insert-extract-shuffle.ll b/test/Transforms/InstCombine/insert-extract-shuffle.ll
index 6841cd64abe39968aafb9d4ff38ecd4cbc5dcf04..c75c771407e575318af46ffe445f69079b318e9e 100644 (file)
--- a/test/Transforms/InstCombine/insert-extract-shuffle.ll
+++ b/test/Transforms/InstCombine/insert-extract-shuffle.ll
@@ -26,8 +26,8 @@ define <4 x i16> @test2(<8 x i16> %in, <8 x i16> %in2) {
 
 define <2 x i64> @test_vcopyq_lane_p64(<2 x i64> %a, <1 x i64> %b) {
 ; CHECK-LABEL: @test_vcopyq_lane_p64
-; CHECK-NEXT: extractelement
-; CHECK-NEXT: insertelement
+; CHECK-NEXT: %[[WIDEVEC:.*]] = shufflevector <1 x i64> %b, <1 x i64> undef, <2 x i32> <i32 0, i32 undef>
+; CHECK-NEXT: shufflevector <2 x i64> %a, <2 x i64> %[[WIDEVEC]], <2 x i32> <i32 0, i32 2>
 ; CHECK-NEXT: ret <2 x i64> %res
   %elt = extractelement <1 x i64> %b, i32 0
   %res = insertelement <2 x i64> %a, i64 %elt, i32 1
@@ -38,10 +38,8 @@ define <2 x i64> @test_vcopyq_lane_p64(<2 x i64> %a, <1 x i64> %b) {
 
 define <4 x float> @widen_extract2(<4 x float> %ins, <2 x float> %ext) {
 ; CHECK-LABEL: @widen_extract2(
-; CHECK-NEXT: extractelement
-; CHECK-NEXT: extractelement
-; CHECK-NEXT: insertelement
-; CHECK-NEXT: insertelement
+; CHECK-NEXT: %[[WIDEVEC:.*]] = shufflevector <2 x float> %ext, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
+; CHECK-NEXT: shufflevector <4 x float> %ins, <4 x float> %[[WIDEVEC]], <4 x i32> <i32 0, i32 4, i32 2, i32 5>
 ; CHECK-NEXT: ret <4 x float> %i2
   %e1 = extractelement <2 x float> %ext, i32 0
   %e2 = extractelement <2 x float> %ext, i32 1
@@ -52,12 +50,8 @@ define <4 x float> @widen_extract2(<4 x float> %ins, <2 x float> %ext) {
 
 define <4 x float> @widen_extract3(<4 x float> %ins, <3 x float> %ext) {
 ; CHECK-LABEL: @widen_extract3(
-; CHECK-NEXT: extractelement
-; CHECK-NEXT: extractelement
-; CHECK-NEXT: extractelement
-; CHECK-NEXT: insertelement
-; CHECK-NEXT: insertelement
-; CHECK-NEXT: insertelement
+; CHECK-NEXT: %[[WIDEVEC:.*]] = shufflevector <3 x float> %ext, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
+; CHECK-NEXT: shufflevector <4 x float> %ins, <4 x float> %[[WIDEVEC]], <4 x i32> <i32 6, i32 5, i32 4, i32 3>
 ; CHECK-NEXT: ret <4 x float> %i3
   %e1 = extractelement <3 x float> %ext, i32 0
   %e2 = extractelement <3 x float> %ext, i32 1
@@ -68,10 +62,10 @@ define <4 x float> @widen_extract3(<4 x float> %ins, <3 x float> %ext) {
   ret <4 x float> %i3
 }
 
-define <8 x float> @too_wide(<8 x float> %ins, <2 x float> %ext) {
-; CHECK-LABEL: @too_wide(
-; CHECK-NEXT: extractelement
-; CHECK-NEXT: insertelement
+define <8 x float> @widen_extract4(<8 x float> %ins, <2 x float> %ext) {
+; CHECK-LABEL: @widen_extract4(
+; CHECK-NEXT: %[[WIDEVEC:.*]] = shufflevector <2 x float> %ext, <2 x float> undef, <8 x i32> <i32 0, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
+; CHECK-NEXT: shufflevector <8 x float> %ins, <8 x float> %[[WIDEVEC]], <8 x i32> <i32 0, i32 1, i32 8, i32 3, i32 4, i32 5, i32 6, i32 7>
 ; CHECK-NEXT: ret <8 x float> %i1
   %e1 = extractelement <2 x float> %ext, i32 0
   %i1 = insertelement <8 x float> %ins, float %e1, i32 2