Revert r255137.

[oota-llvm.git] / test / Transforms / InstCombine / bitcast.ll

diff --git a/test/Transforms/InstCombine/bitcast.ll b/test/Transforms/InstCombine/bitcast.ll
index 899cb4962a3ea59a5c5bd7b7e705ce585bff04c5..2a8194e53032af3e17b8ec5c8f605e75064f5ade 100644 (file)
--- a/test/Transforms/InstCombine/bitcast.ll
+++ b/test/Transforms/InstCombine/bitcast.ll
@@ -11,8 +11,8 @@ define i32 @test1(i64 %a) {
         %t3 = xor <2 x i32> %t1, %t2
         %t4 = extractelement <2 x i32> %t3, i32 0
         ret i32 %t4
-        
-; CHECK: @test1
+
+; CHECK-LABEL: @test1(
 ; CHECK: ret i32 0
 }
 
@@ -30,8 +30,8 @@ define float @test2(<2 x float> %A, <2 x i32> %B) {
 
   %add = fadd float %tmp24, %tmp4
   ret float %add
-  
-; CHECK: @test2
+
+; CHECK-LABEL: @test2(
 ; CHECK-NEXT:  %tmp24 = extractelement <2 x float> %A, i32 0
 ; CHECK-NEXT:  bitcast <2 x i32> %B to <2 x float>
 ; CHECK-NEXT:  %tmp4 = extractelement <2 x float> {{.*}}, i32 0
@@ -55,8 +55,8 @@ define float @test3(<2 x float> %A, <2 x i64> %B) {
 
   %add = fadd float %tmp24, %tmp4
   ret float %add
-  
-; CHECK: @test3
+
+; CHECK-LABEL: @test3(
 ; CHECK-NEXT:  %tmp24 = extractelement <2 x float> %A, i32 1
 ; CHECK-NEXT:  bitcast <2 x i64> %B to <4 x float>
 ; CHECK-NEXT:  %tmp4 = extractelement <4 x float> {{.*}}, i32 2
@@ -64,6 +64,35 @@ define float @test3(<2 x float> %A, <2 x i64> %B) {
 ; CHECK-NEXT:  ret float %add
 }
 
+; TODO: Both bitcasts are unnecessary; change the extractelement.
+
+define float @bitcast_extelt1(<2 x float> %A) {
+  %bc1 = bitcast <2 x float> %A to <2 x i32>
+  %ext = extractelement <2 x i32> %bc1, i32 0
+  %bc2 = bitcast i32 %ext to float
+  ret float %bc2
+
+; CHECK-LABEL: @bitcast_extelt1(
+; CHECK-NEXT:  %bc1 = bitcast <2 x float> %A to <2 x i32>
+; CHECK-NEXT:  %ext = extractelement <2 x i32> %bc1, i32 0
+; CHECK-NEXT:  %bc2 = bitcast i32 %ext to float
+; CHECK-NEXT:  ret float %bc2
+}
+
+; TODO: Second bitcast can be folded into the first.
+
+define i64 @bitcast_extelt2(<4 x float> %A) {
+  %bc1 = bitcast <4 x float> %A to <2 x double>
+  %ext = extractelement <2 x double> %bc1, i32 1
+  %bc2 = bitcast double %ext to i64
+  ret i64 %bc2
+
+; CHECK-LABEL: @bitcast_extelt2(
+; CHECK-NEXT:  %bc1 = bitcast <4 x float> %A to <2 x double>
+; CHECK-NEXT:  %ext = extractelement <2 x double> %bc1, i32 1
+; CHECK-NEXT:  %bc2 = bitcast double %ext to i64
+; CHECK-NEXT:  ret i64 %bc2
+}
 
 define <2 x i32> @test4(i32 %A, i32 %B){
   %tmp38 = zext i32 %A to i64
@@ -72,10 +101,10 @@ define <2 x i32> @test4(i32 %A, i32 %B){
   %ins35 = or i64 %tmp33, %tmp38
   %tmp43 = bitcast i64 %ins35 to <2 x i32>
   ret <2 x i32> %tmp43
-  ; CHECK: @test4
+  ; CHECK-LABEL: @test4(
   ; CHECK-NEXT: insertelement <2 x i32> undef, i32 %A, i32 0
   ; CHECK-NEXT: insertelement <2 x i32> {{.*}}, i32 %B, i32 1
-  ; CHECK-NEXT: ret <2 x i32> 
+  ; CHECK-NEXT: ret <2 x i32>
 
 }
 
@@ -89,10 +118,10 @@ define <2 x float> @test5(float %A, float %B) {
   %ins35 = or i64 %tmp33, %tmp38
   %tmp43 = bitcast i64 %ins35 to <2 x float>
   ret <2 x float> %tmp43
-  ; CHECK: @test5
+  ; CHECK-LABEL: @test5(
   ; CHECK-NEXT: insertelement <2 x float> undef, float %A, i32 0
   ; CHECK-NEXT: insertelement <2 x float> {{.*}}, float %B, i32 1
-  ; CHECK-NEXT: ret <2 x float> 
+  ; CHECK-NEXT: ret <2 x float>
 }
 
 define <2 x float> @test6(float %A){
@@ -102,7 +131,7 @@ define <2 x float> @test6(float %A){
   %mask20 = or i64 %tmp25, 1109917696             ; <i64> [#uses=1]
   %tmp35 = bitcast i64 %mask20 to <2 x float>     ; <<2 x float>> [#uses=1]
   ret <2 x float> %tmp35
-; CHECK: @test6
+; CHECK-LABEL: @test6(
 ; CHECK-NEXT: insertelement <2 x float> <float 4.200000e+01, float undef>, float %A, i32 1
 ; CHECK: ret
 }
@@ -110,7 +139,7 @@ define <2 x float> @test6(float %A){
 define i64 @ISPC0(i64 %in) {
   %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 -1, i16 -1, i16 -1, i16 -1> to i64), i64 -1)
   ret i64 %out
-; CHECK: @ISPC0
+; CHECK-LABEL: @ISPC0(
 ; CHECK: ret i64 0
 }
 
@@ -118,22 +147,39 @@ define i64 @ISPC0(i64 %in) {
 define i64 @Vec2(i64 %in) {
   %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 0, i16 0, i16 0, i16 0> to i64), i64 0)
   ret i64 %out
-; CHECK: @Vec2
+; CHECK-LABEL: @Vec2(
 ; CHECK: ret i64 0
 }
 
 define i64 @All11(i64 %in) {
-  %out = and i64 %in, xor (i64 bitcast (<2 x float> bitcast (i64 -1 to <2 x float>) to i64), i64 -1) 
+  %out = and i64 %in, xor (i64 bitcast (<2 x float> bitcast (i64 -1 to <2 x float>) to i64), i64 -1)
   ret i64 %out
-; CHECK: @All11
+; CHECK-LABEL: @All11(
 ; CHECK: ret i64 0
 }
 
 
-define i64 @All111(i32 %in) {
-  %out = and i32 %in, xor (i64 bitcast (<1 x float> bitcast (i32 -1 to <1 x float>) to i32), i32 -1) 
+define i32 @All111(i32 %in) {
+  %out = and i32 %in, xor (i32 bitcast (<1 x float> bitcast (i32 -1 to <1 x float>) to i32), i32 -1)
   ret i32 %out
-; CHECK: @All11
+; CHECK-LABEL: @All111(
 ; CHECK: ret i32 0
 }
 
+define <2 x i16> @BitcastInsert(i32 %a) {
+  %v = insertelement <1 x i32> undef, i32 %a, i32 0
+  %r = bitcast <1 x i32> %v to <2 x i16>
+  ret <2 x i16> %r
+; CHECK-LABEL: @BitcastInsert(
+; CHECK: bitcast i32 %a to <2 x i16>
+}
+
+; PR17293
+define <2 x i64> @test7(<2 x i8*>* %arg) nounwind {
+  %cast = bitcast <2 x i8*>* %arg to <2 x i64>*
+  %load = load <2 x i64>, <2 x i64>* %cast, align 16
+  ret <2 x i64> %load
+; CHECK: @test7
+; CHECK: bitcast
+; CHECK: load
+}