X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FTransforms%2FInstCombine%2Fcast.ll;h=75478778a9d8c0c23b83004d474c2b2953759007;hb=26c5663283f89f1624304723ebe8c25d253463a3;hp=6cad43bd7dc9e5f427f653ed1896e912fed1ec30;hpb=e4d87aa2de6e52952dca73716386db09aad5a8fd;p=oota-llvm.git

diff --git a/test/Transforms/InstCombine/cast.ll b/test/Transforms/InstCombine/cast.ll
index 6cad43bd7dc..75478778a9d 100644
--- a/test/Transforms/InstCombine/cast.ll
+++ b/test/Transforms/InstCombine/cast.ll
@@ -1,98 +1,128 @@
 ; Tests to make sure elimination of casts is working correctly
-; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -disable-output &&
-; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | grep '%c' | notcast
+; RUN: opt < %s -instcombine -S | FileCheck %s
+target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128-n8:16:32:64"
 
-%inbuf = external global [32832 x ubyte]
+@inbuf = external global [32832 x i8]           ; <[32832 x i8]*> [#uses=1]
 
-implementation
-
-int %test1(int %A) {
-	%c1 = cast int %A to uint
-	%c2 = cast uint %c1 to int
-	ret int %c2
+define i32 @test1(i32 %A) {
+        %c1 = bitcast i32 %A to i32             ; <i32> [#uses=1]
+        %c2 = bitcast i32 %c1 to i32            ; <i32> [#uses=1]
+        ret i32 %c2
+; CHECK: ret i32 %A
 }
 
-ulong %test2(ubyte %A) {
-	%c1 = cast ubyte %A to ushort
-	%c2 = cast ushort %c1 to uint
-	%Ret = cast uint %c2 to ulong
-	ret ulong %Ret
+define i64 @test2(i8 %A) {
+        %c1 = zext i8 %A to i16         ; <i16> [#uses=1]
+        %c2 = zext i16 %c1 to i32               ; <i32> [#uses=1]
+        %Ret = zext i32 %c2 to i64              ; <i64> [#uses=1]
+        ret i64 %Ret
+; CHECK: %Ret = zext i8 %A to i64
+; CHECK: ret i64 %Ret
 }
 
-ulong %test3(ulong %A) {    ; This function should just use bitwise AND
-	%c1 = cast ulong %A to ubyte
-	%c2 = cast ubyte %c1 to ulong
-	ret ulong %c2
+; This function should just use bitwise AND
+define i64 @test3(i64 %A) {
+        %c1 = trunc i64 %A to i8                ; <i8> [#uses=1]
+        %c2 = zext i8 %c1 to i64                ; <i64> [#uses=1]
+        ret i64 %c2
+; CHECK: %c2 = and i64 %A, 255
+; CHECK: ret i64 %c2
 }
 
-uint %test4(int %A, int %B) {
-        %COND = setlt int %A, %B
-        %c = cast bool %COND to ubyte     ; Booleans are unsigned integrals
-        %result = cast ubyte %c to uint   ; for the cast elim purpose
-        ret uint %result
+define i32 @test4(i32 %A, i32 %B) {
+        %COND = icmp slt i32 %A, %B             ; <i1> [#uses=1]
+        ; Booleans are unsigned integrals
+        %c = zext i1 %COND to i8                ; <i8> [#uses=1]
+        ; for the cast elim purpose
+        %result = zext i8 %c to i32             ; <i32> [#uses=1]
+        ret i32 %result
+; CHECK: %COND = icmp slt i32 %A, %B
+; CHECK: %result = zext i1 %COND to i32
+; CHECK: ret i32 %result
 }
 
-int %test5(bool %B) {
-        %c = cast bool %B to ubyte       ; This cast should get folded into
-        %result = cast ubyte %c to int   ; this cast
-        ret int %result
+define i32 @test5(i1 %B) {
+        ; This cast should get folded into
+        %c = zext i1 %B to i8           ; <i8> [#uses=1]
+        ; this cast        
+        %result = zext i8 %c to i32             ; <i32> [#uses=1]
+        ret i32 %result
+; CHECK: %result = zext i1 %B to i32
+; CHECK: ret i32 %result
 }
 
-int %test6(ulong %A) {
-	%c1 = cast ulong %A to uint
-	%res = cast uint %c1 to int
-	ret int %res
+define i32 @test6(i64 %A) {
+        %c1 = trunc i64 %A to i32               ; <i32> [#uses=1]
+        %res = bitcast i32 %c1 to i32           ; <i32> [#uses=1]
+        ret i32 %res
+; CHECK:  trunc i64 %A to i32
+; CHECK-NEXT: ret i32
 }
 
-long %test7(bool %A) {
-	%c1 = cast bool %A to int
-	%res = cast int %c1 to long
-	ret long %res
+define i64 @test7(i1 %A) {
+        %c1 = zext i1 %A to i32         ; <i32> [#uses=1]
+        %res = sext i32 %c1 to i64              ; <i64> [#uses=1]
+        ret i64 %res
+; CHECK: %res = zext i1 %A to i64
+; CHECK: ret i64 %res
 }
 
-long %test8(sbyte %A) {
-        %c1 = cast sbyte %A to ulong
-        %res = cast ulong %c1 to long
-        ret long %res
+define i64 @test8(i8 %A) {
+        %c1 = sext i8 %A to i64         ; <i64> [#uses=1]
+        %res = bitcast i64 %c1 to i64           ; <i64> [#uses=1]
+        ret i64 %res
+; CHECK: = sext i8 %A to i64
+; CHECK-NEXT: ret i64
 }
 
-short %test9(short %A) {
-	%c1 = cast short %A to int
-	%c2 = cast int %c1 to short
-	ret short %c2
+define i16 @test9(i16 %A) {
+        %c1 = sext i16 %A to i32                ; <i32> [#uses=1]
+        %c2 = trunc i32 %c1 to i16              ; <i16> [#uses=1]
+        ret i16 %c2
+; CHECK: ret i16 %A
 }
 
-short %test10(short %A) {
-	%c1 = cast short %A to uint
-	%c2 = cast uint %c1 to short
-	ret short %c2
+define i16 @test10(i16 %A) {
+        %c1 = sext i16 %A to i32                ; <i32> [#uses=1]
+        %c2 = trunc i32 %c1 to i16              ; <i16> [#uses=1]
+        ret i16 %c2
+; CHECK: ret i16 %A
 }
 
-declare void %varargs(int, ...)
+declare void @varargs(i32, ...)
 
-void %test11(int* %P) {
-	%c = cast int* %P to short*
-	call void(int, ...)* %varargs(int 5, short* %c)
-	ret void
+define void @test11(i32* %P) {
+        %c = bitcast i32* %P to i16*            ; <i16*> [#uses=1]
+        call void (i32, ...)* @varargs( i32 5, i16* %c )
+        ret void
+; CHECK: call void (i32, ...)* @varargs(i32 5, i32* %P)
+; CHECK: ret void
 }
 
-int* %test12() {
-	%p = malloc [4 x sbyte]
-	%c = cast [4 x sbyte]* %p to int*
-	ret int* %c
+define i32* @test12() {
+        %p = malloc [4 x i8]            ; <[4 x i8]*> [#uses=1]
+        %c = bitcast [4 x i8]* %p to i32*               ; <i32*> [#uses=1]
+        ret i32* %c
+; CHECK: %malloccall = tail call i8* @malloc(i32 4)
+; CHECK: ret i32* %c
 }
 
-ubyte *%test13(long %A) {
-	%c = getelementptr [0 x ubyte]* cast ([32832 x ubyte]*  %inbuf to [0 x ubyte]*), long 0, long %A
-	ret ubyte* %c
+define i8* @test13(i64 %A) {
+        %c = getelementptr [0 x i8]* bitcast ([32832 x i8]* @inbuf to [0 x i8]*), i64 0, i64 %A             ; <i8*> [#uses=1]
+        ret i8* %c
+; CHECK: %c = getelementptr [32832 x i8]* @inbuf, i64 0, i64 %A
+; CHECK: ret i8* %c
 }
 
-bool %test14(sbyte %A) {
-        %c = cast sbyte %A to ubyte
-        %X = setlt ubyte %c, 128   ; setge %A, 0
-        ret bool %X
+define i1 @test14(i8 %A) {
+        %c = bitcast i8 %A to i8                ; <i8> [#uses=1]
+        %X = icmp ult i8 %c, -128               ; <i1> [#uses=1]
+        ret i1 %X
+; CHECK: %X = icmp sgt i8 %A, -1
+; CHECK: ret i1 %X
 }
 
+
 ; This just won't occur when there's no difference between ubyte and sbyte
 ;bool %test15(ubyte %A) {
 ;        %c = cast ubyte %A to sbyte
@@ -100,130 +130,522 @@ bool %test14(sbyte %A) {
 ;        ret bool %X
 ;}
 
-bool %test16(int* %P) {
-	%c = cast int* %P to bool  ;; setne P, null
-	ret bool %c
-}
-
-short %test17(bool %tmp3) {
-	%c = cast bool %tmp3 to int
-	%t86 = cast int %c to short
-	ret short %t86
-}
-
-short %test18(sbyte %tmp3) {
-	%c = cast sbyte %tmp3 to int
-	%t86 = cast int %c to short
-	ret short %t86
-}
-
-bool %test19(int %X) {
-	%c = cast int %X to long
-	%Z = setlt long %c, 12345
-	ret bool %Z
-}
-
-bool %test20(bool %B) {
-	%c = cast bool %B to int
-	%D = setlt int %c, -1
-	ret bool %D                ;; false
-}
-
-uint %test21(uint %X) {
-	%c1 = cast uint %X to sbyte
-	%c2 = cast sbyte %c1 to uint ;; sext -> zext -> and -> nop
-	%RV = and uint %c2, 255
-	ret uint %RV
-}
-
-uint %test22(uint %X) {
-	%c1 = cast uint %X to sbyte
-	%c2 = cast sbyte %c1 to uint ;; sext -> zext -> and -> nop
-	%RV = shl uint %c2, ubyte 24
-	ret uint %RV
-}
-
-int %test23(int %X) {
-	%c1 = cast int %X to ushort  ;; Turn into an AND even though X
-	%c2 = cast ushort %c1 to int  ;; and Z are signed.
-	ret int %c2
-}
-
-bool %test24(bool %C) {
-        %X = select bool %C, uint 14, uint 1234
-        %c = cast uint %X to bool                  ;; Fold cast into select
-        ret bool %c
-}
-
-void %test25(int** %P) {
-        %c = cast int** %P to float**
-        store float* null, float** %c          ;; Fold cast into null
+define i1 @test16(i32* %P) {
+        %c = icmp ne i32* %P, null              ; <i1> [#uses=1]
+        ret i1 %c
+; CHECK: %c = icmp ne i32* %P, null
+; CHECK: ret i1 %c
+}
+
+define i16 @test17(i1 %tmp3) {
+        %c = zext i1 %tmp3 to i32               ; <i32> [#uses=1]
+        %t86 = trunc i32 %c to i16              ; <i16> [#uses=1]
+        ret i16 %t86
+; CHECK: %t86 = zext i1 %tmp3 to i16
+; CHECK: ret i16 %t86
+}
+
+define i16 @test18(i8 %tmp3) {
+        %c = sext i8 %tmp3 to i32               ; <i32> [#uses=1]
+        %t86 = trunc i32 %c to i16              ; <i16> [#uses=1]
+        ret i16 %t86
+; CHECK: %t86 = sext i8 %tmp3 to i16
+; CHECK: ret i16 %t86
+}
+
+define i1 @test19(i32 %X) {
+        %c = sext i32 %X to i64         ; <i64> [#uses=1]
+        %Z = icmp slt i64 %c, 12345             ; <i1> [#uses=1]
+        ret i1 %Z
+; CHECK: %Z = icmp slt i32 %X, 12345
+; CHECK: ret i1 %Z
+}
+
+define i1 @test20(i1 %B) {
+        %c = zext i1 %B to i32          ; <i32> [#uses=1]
+        %D = icmp slt i32 %c, -1                ; <i1> [#uses=1]
+        ;; false
+        ret i1 %D
+; CHECK: ret i1 false
+}
+
+define i32 @test21(i32 %X) {
+        %c1 = trunc i32 %X to i8                ; <i8> [#uses=1]
+        ;; sext -> zext -> and -> nop
+        %c2 = sext i8 %c1 to i32                ; <i32> [#uses=1]
+        %RV = and i32 %c2, 255          ; <i32> [#uses=1]
+        ret i32 %RV
+; CHECK: %c21 = and i32 %X, 255
+; CHECK: ret i32 %c21
+}
+
+define i32 @test22(i32 %X) {
+        %c1 = trunc i32 %X to i8                ; <i8> [#uses=1]
+        ;; sext -> zext -> and -> nop
+        %c2 = sext i8 %c1 to i32                ; <i32> [#uses=1]
+        %RV = shl i32 %c2, 24           ; <i32> [#uses=1]
+        ret i32 %RV
+; CHECK: shl i32 %X, 24
+; CHECK-NEXT: ret i32
+}
+
+define i32 @test23(i32 %X) {
+        ;; Turn into an AND even though X
+        %c1 = trunc i32 %X to i16               ; <i16> [#uses=1]
+        ;; and Z are signed.
+        %c2 = zext i16 %c1 to i32               ; <i32> [#uses=1]
+        ret i32 %c2
+; CHECK: %c2 = and i32 %X, 65535
+; CHECK: ret i32 %c2
+}
+
+define i1 @test24(i1 %C) {
+        %X = select i1 %C, i32 14, i32 1234             ; <i32> [#uses=1]
+        ;; Fold cast into select
+        %c = icmp ne i32 %X, 0          ; <i1> [#uses=1]
+        ret i1 %c
+; CHECK: ret i1 true
+}
+
+define void @test25(i32** %P) {
+        %c = bitcast i32** %P to float**                ; <float**> [#uses=1]
+        ;; Fold cast into null
+        store float* null, float** %c
         ret void
-}
-
-int %test26(float %F) {
-	%c = cast float %F to double   ;; no need to cast from float->double.
-	%D = cast double %c to int
-	ret int %D
-}
-
-[4 x float]* %test27([9 x [4 x float]]* %A) {
-        %c = cast [9 x [4 x float]]* %A to [4 x float]*
-	ret [4 x float]* %c
-}
-
-float* %test28([4 x float]* %A) {
-        %c = cast [4 x float]* %A to float*
-	ret float* %c
-}
-
-uint %test29(uint %c1, uint %c2) {
-	%tmp1 = cast uint %c1 to ubyte
-        %tmp4.mask = cast uint %c2 to ubyte
-        %tmp = or ubyte %tmp4.mask, %tmp1
-        %tmp10 = cast ubyte %tmp to uint
-	ret uint %tmp10
-}
-
-uint %test30(uint %c1) {
-        %c2 = cast uint %c1 to ubyte
-        %c3 = xor ubyte %c2, 1     
-        %c4 = cast ubyte %c3 to uint
-        ret uint %c4
-}
-
-bool %test31(ulong %A) {
-	%B = cast ulong %A to int
-	%C = and int %B, 42
-	%D = seteq int %C, 10
-	ret bool %D
-}
-
-
-void %test32(double** %tmp) {
-	%tmp8 = malloc [16 x sbyte]
-        %tmp8 = cast [16 x sbyte]* %tmp8 to double*
-        store double* %tmp8, double** %tmp
+; CHECK: store i32* null, i32** %P
+; CHECK: ret void
+}
+
+define i32 @test26(float %F) {
+        ;; no need to cast from float->double.
+        %c = fpext float %F to double           ; <double> [#uses=1]
+        %D = fptosi double %c to i32            ; <i32> [#uses=1]
+        ret i32 %D
+; CHECK: %D = fptosi float %F to i32
+; CHECK: ret i32 %D
+}
+
+define [4 x float]* @test27([9 x [4 x float]]* %A) {
+        %c = bitcast [9 x [4 x float]]* %A to [4 x float]*              ; <[4 x float]*> [#uses=1]
+        ret [4 x float]* %c
+; CHECK: %c = getelementptr inbounds [9 x [4 x float]]* %A, i64 0, i64 0
+; CHECK: ret [4 x float]* %c
+}
+
+define float* @test28([4 x float]* %A) {
+        %c = bitcast [4 x float]* %A to float*          ; <float*> [#uses=1]
+        ret float* %c
+; CHECK: %c = getelementptr inbounds [4 x float]* %A, i64 0, i64 0
+; CHECK: ret float* %c
+}
+
+define i32 @test29(i32 %c1, i32 %c2) {
+        %tmp1 = trunc i32 %c1 to i8             ; <i8> [#uses=1]
+        %tmp4.mask = trunc i32 %c2 to i8                ; <i8> [#uses=1]
+        %tmp = or i8 %tmp4.mask, %tmp1          ; <i8> [#uses=1]
+        %tmp10 = zext i8 %tmp to i32            ; <i32> [#uses=1]
+        ret i32 %tmp10
+; CHECK: %tmp2 = or i32 %c2, %c1
+; CHECK: %tmp10 = and i32 %tmp2, 255
+; CHECK: ret i32 %tmp10
+}
+
+define i32 @test30(i32 %c1) {
+        %c2 = trunc i32 %c1 to i8               ; <i8> [#uses=1]
+        %c3 = xor i8 %c2, 1             ; <i8> [#uses=1]
+        %c4 = zext i8 %c3 to i32                ; <i32> [#uses=1]
+        ret i32 %c4
+; CHECK: %c3 = and i32 %c1, 255
+; CHECK: %c4 = xor i32 %c3, 1
+; CHECK: ret i32 %c4
+}
+
+define i1 @test31(i64 %A) {
+        %B = trunc i64 %A to i32                ; <i32> [#uses=1]
+        %C = and i32 %B, 42             ; <i32> [#uses=1]
+        %D = icmp eq i32 %C, 10         ; <i1> [#uses=1]
+        ret i1 %D
+; CHECK: %C1 = and i64 %A, 42
+; CHECK: %D = icmp eq i64 %C1, 10
+; CHECK: ret i1 %D
+}
+
+define void @test32(double** %tmp) {
+        %tmp8 = malloc [16 x i8]                ; <[16 x i8]*> [#uses=1]
+        %tmp8.upgrd.1 = bitcast [16 x i8]* %tmp8 to double*             ; <double*> [#uses=1]
+        store double* %tmp8.upgrd.1, double** %tmp
         ret void
-}
-
-uint %test33(uint %c1) {
-        %x = bitcast uint %c1 to float 
-        %y = bitcast float %x to uint
-        ret uint %y
-}
-
-ushort %test34(ushort %a) {
-        %c1 = zext ushort %a to int
-        %tmp21 = lshr int %c1, ubyte 8
-        %c2 = trunc int %tmp21 to ushort
-        ret ushort %c2
-}
-
-ushort %test35(ushort %a) {
-        %c1 = bitcast ushort %a to short
-        %tmp2 = lshr short %c1, ubyte 8
-        %c2 = bitcast short %tmp2 to ushort
-	ret ushort %c2
+; CHECK: %malloccall = tail call i8* @malloc(i32 16)
+; CHECK: %tmp8.upgrd.1 = bitcast i8* %malloccall to double*
+; CHECK: store double* %tmp8.upgrd.1, double** %tmp
+; CHECK: ret void
+}
+
+define i32 @test33(i32 %c1) {
+        %x = bitcast i32 %c1 to float           ; <float> [#uses=1]
+        %y = bitcast float %x to i32            ; <i32> [#uses=1]
+        ret i32 %y
+; CHECK: ret i32 %c1
+}
+
+define i16 @test34(i16 %a) {
+        %c1 = zext i16 %a to i32                ; <i32> [#uses=1]
+        %tmp21 = lshr i32 %c1, 8                ; <i32> [#uses=1]
+        %c2 = trunc i32 %tmp21 to i16           ; <i16> [#uses=1]
+        ret i16 %c2
+; CHECK: %tmp21 = lshr i16 %a, 8
+; CHECK: ret i16 %tmp21
+}
+
+define i16 @test35(i16 %a) {
+        %c1 = bitcast i16 %a to i16             ; <i16> [#uses=1]
+        %tmp2 = lshr i16 %c1, 8         ; <i16> [#uses=1]
+        %c2 = bitcast i16 %tmp2 to i16          ; <i16> [#uses=1]
+        ret i16 %c2
+; CHECK: %tmp2 = lshr i16 %a, 8
+; CHECK: ret i16 %tmp2
+}
+
+; icmp sgt i32 %a, -1
+; rdar://6480391
+define i1 @test36(i32 %a) {
+        %b = lshr i32 %a, 31
+        %c = trunc i32 %b to i8
+        %d = icmp eq i8 %c, 0
+        ret i1 %d
+; CHECK: %d = icmp sgt i32 %a, -1
+; CHECK: ret i1 %d
+}
+
+; ret i1 false
+define i1 @test37(i32 %a) {
+        %b = lshr i32 %a, 31
+        %c = or i32 %b, 512
+        %d = trunc i32 %c to i8
+        %e = icmp eq i8 %d, 11
+        ret i1 %e
+; CHECK: ret i1 false
+}
+
+define i64 @test38(i32 %a) {
+	%1 = icmp eq i32 %a, -2
+	%2 = zext i1 %1 to i8
+	%3 = xor i8 %2, 1
+	%4 = zext i8 %3 to i64
+        ret i64 %4
+; CHECK: %1 = icmp ne i32 %a, -2
+; CHECK: %2 = zext i1 %1 to i64
+; CHECK: ret i64 %2
+}
+
+define i16 @test39(i16 %a) {
+        %tmp = zext i16 %a to i32
+        %tmp21 = lshr i32 %tmp, 8
+        %tmp5 = shl i32 %tmp, 8
+        %tmp.upgrd.32 = or i32 %tmp21, %tmp5
+        %tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16
+        ret i16 %tmp.upgrd.3
+; CHECK: @test39
+; CHECK: %tmp.upgrd.32 = call i16 @llvm.bswap.i16(i16 %a)
+; CHECK: ret i16 %tmp.upgrd.32
+}
+
+define i16 @test40(i16 %a) {
+        %tmp = zext i16 %a to i32
+        %tmp21 = lshr i32 %tmp, 9
+        %tmp5 = shl i32 %tmp, 8
+        %tmp.upgrd.32 = or i32 %tmp21, %tmp5
+        %tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16
+        ret i16 %tmp.upgrd.3
+; CHECK: @test40
+; CHECK: %tmp21 = lshr i16 %a, 9
+; CHECK: %tmp5 = shl i16 %a, 8
+; CHECK: %tmp.upgrd.32 = or i16 %tmp21, %tmp5
+; CHECK: ret i16 %tmp.upgrd.32
+}
+
+; PR1263
+define i32* @test41(i32* %tmp1) {
+        %tmp64 = bitcast i32* %tmp1 to { i32 }*
+        %tmp65 = getelementptr { i32 }* %tmp64, i32 0, i32 0
+        ret i32* %tmp65
+; CHECK: @test41
+; CHECK: ret i32* %tmp1
+}
+
+define i32 @test42(i32 %X) {
+        %Y = trunc i32 %X to i8         ; <i8> [#uses=1]
+        %Z = zext i8 %Y to i32          ; <i32> [#uses=1]
+        ret i32 %Z
+; CHECK: @test42
+; CHECK: %Z = and i32 %X, 255
+}
+
+; rdar://6598839
+define zeroext i64 @test43(i8 zeroext %on_off) nounwind readonly {
+	%A = zext i8 %on_off to i32
+	%B = add i32 %A, -1
+	%C = sext i32 %B to i64
+	ret i64 %C  ;; Should be (add (zext i8 -> i64), -1)
+; CHECK: @test43
+; CHECK-NEXT: %A = zext i8 %on_off to i64
+; CHECK-NEXT: %B = add i64 %A, -1
+; CHECK-NEXT: ret i64 %B
+}
+
+define i64 @test44(i8 %T) {
+ %A = zext i8 %T to i16
+ %B = or i16 %A, 1234
+ %C = zext i16 %B to i64
+ ret i64 %C
+; CHECK: @test44
+; CHECK-NEXT: %A = zext i8 %T to i64
+; CHECK-NEXT: %B = or i64 %A, 1234
+; CHECK-NEXT: ret i64 %B
+}
+
+define i64 @test45(i8 %A, i64 %Q) {
+ %D = trunc i64 %Q to i32  ;; should be removed
+ %B = sext i8 %A to i32
+ %C = or i32 %B, %D
+ %E = zext i32 %C to i64 
+ ret i64 %E
+; CHECK: @test45
+; CHECK-NEXT: %B = sext i8 %A to i64
+; CHECK-NEXT: %C = or i64 %B, %Q
+; CHECK-NEXT: %E = and i64 %C, 4294967295
+; CHECK-NEXT: ret i64 %E
+}
+
+
+define i64 @test46(i64 %A) {
+ %B = trunc i64 %A to i32
+ %C = and i32 %B, 42
+ %D = shl i32 %C, 8
+ %E = zext i32 %D to i64 
+ ret i64 %E
+; CHECK: @test46
+; CHECK-NEXT: %C = shl i64 %A, 8
+; CHECK-NEXT: %D = and i64 %C, 10752
+; CHECK-NEXT: ret i64 %D
+}
+
+define i64 @test47(i8 %A) {
+ %B = sext i8 %A to i32
+ %C = or i32 %B, 42
+ %E = zext i32 %C to i64 
+ ret i64 %E
+; CHECK: @test47
+; CHECK-NEXT:   %B = sext i8 %A to i64
+; CHECK-NEXT: %C = and i64 %B, 4294967253
+; CHECK-NEXT:  %E = or i64 %C, 42
+; CHECK-NEXT:  ret i64 %E
+}
+
+define i64 @test48(i8 %A, i8 %a) {
+  %b = zext i8 %a to i32
+  %B = zext i8 %A to i32
+  %C = shl i32 %B, 8
+  %D = or i32 %C, %b
+  %E = zext i32 %D to i64
+  ret i64 %E
+; CHECK: @test48
+; CHECK-NEXT: %b = zext i8 %a to i64
+; CHECK-NEXT: %B = zext i8 %A to i64
+; CHECK-NEXT: %C = shl i64 %B, 8
+; CHECK-NEXT: %D = or i64 %C, %b
+; CHECK-NEXT: ret i64 %D
+}
+
+define i64 @test49(i64 %A) {
+ %B = trunc i64 %A to i32
+ %C = or i32 %B, 1
+ %D = sext i32 %C to i64 
+ ret i64 %D
+; CHECK: @test49
+; CHECK-NEXT: %C = shl i64 %A, 32
+; CHECK-NEXT: ashr i64 %C, 32
+; CHECK-NEXT: %D = or i64 {{.*}}, 1
+; CHECK-NEXT: ret i64 %D
+}
+
+define i64 @test50(i64 %A) {
+  %a = lshr i64 %A, 2
+  %B = trunc i64 %a to i32
+  %D = add i32 %B, -1
+  %E = sext i32 %D to i64
+  ret i64 %E
+; CHECK: @test50
+; CHECK-NEXT: shl i64 %A, 30
+; CHECK-NEXT: add i64 {{.*}}, -4294967296
+; CHECK-NEXT: %E = ashr i64 {{.*}}, 32
+; CHECK-NEXT: ret i64 %E
+}
+
+define i64 @test51(i64 %A, i1 %cond) {
+  %B = trunc i64 %A to i32
+  %C = and i32 %B, -2
+  %D = or i32 %B, 1
+  %E = select i1 %cond, i32 %C, i32 %D
+  %F = sext i32 %E to i64
+  ret i64 %F
+; CHECK: @test51
+
+; FIXME: disabled, see PR5997
+; HECK-NEXT: %C = and i64 %A, 4294967294
+; HECK-NEXT: %D = or i64 %A, 1
+; HECK-NEXT: %E = select i1 %cond, i64 %C, i64 %D
+; HECK-NEXT: %sext = shl i64 %E, 32
+; HECK-NEXT: %F = ashr i64 %sext, 32
+; HECK-NEXT: ret i64 %F
+}
+
+define i32 @test52(i64 %A) {
+  %B = trunc i64 %A to i16
+  %C = or i16 %B, -32574
+  %D = and i16 %C, -25350
+  %E = zext i16 %D to i32
+  ret i32 %E
+; CHECK: @test52
+; CHECK-NEXT: %B = trunc i64 %A to i32
+; CHECK-NEXT: %C = and i32 %B, 7224
+; CHECK-NEXT: %D = or i32 %C, 32962
+; CHECK-NEXT: ret i32 %D
+}
+
+define i64 @test53(i32 %A) {
+  %B = trunc i32 %A to i16
+  %C = or i16 %B, -32574
+  %D = and i16 %C, -25350
+  %E = zext i16 %D to i64
+  ret i64 %E
+; CHECK: @test53
+; CHECK-NEXT: %B = zext i32 %A to i64
+; CHECK-NEXT: %C = and i64 %B, 7224
+; CHECK-NEXT: %D = or i64 %C, 32962
+; CHECK-NEXT: ret i64 %D
+}
+
+define i32 @test54(i64 %A) {
+  %B = trunc i64 %A to i16
+  %C = or i16 %B, -32574
+  %D = and i16 %C, -25350
+  %E = sext i16 %D to i32
+  ret i32 %E
+; CHECK: @test54
+; CHECK-NEXT: %B = trunc i64 %A to i32
+; CHECK-NEXT: %C = and i32 %B, 7224
+; CHECK-NEXT: %D = or i32 %C, -32574
+; CHECK-NEXT: ret i32 %D
+}
+
+define i64 @test55(i32 %A) {
+  %B = trunc i32 %A to i16
+  %C = or i16 %B, -32574
+  %D = and i16 %C, -25350
+  %E = sext i16 %D to i64
+  ret i64 %E
+; CHECK: @test55
+; CHECK-NEXT: %B = zext i32 %A to i64
+; CHECK-NEXT: %C = and i64 %B, 7224
+; CHECK-NEXT: %D = or i64 %C, -32574
+; CHECK-NEXT: ret i64 %D
+}
+
+define i64 @test56(i16 %A) nounwind {
+  %tmp353 = sext i16 %A to i32
+  %tmp354 = lshr i32 %tmp353, 5
+  %tmp355 = zext i32 %tmp354 to i64
+  ret i64 %tmp355
+; CHECK: @test56
+; CHECK-NEXT: %tmp353 = sext i16 %A to i64
+; CHECK-NEXT: %tmp354 = lshr i64 %tmp353, 5
+; CHECK-NEXT: %tmp355 = and i64 %tmp354, 134217727
+; CHECK-NEXT: ret i64 %tmp355
+}
+
+define i64 @test57(i64 %A) nounwind {
+ %B = trunc i64 %A to i32
+ %C = lshr i32 %B, 8
+ %E = zext i32 %C to i64
+ ret i64 %E
+; CHECK: @test57
+; CHECK-NEXT: %C = lshr i64 %A, 8 
+; CHECK-NEXT: %E = and i64 %C, 16777215
+; CHECK-NEXT: ret i64 %E
+}
+
+define i64 @test58(i64 %A) nounwind {
+ %B = trunc i64 %A to i32
+ %C = lshr i32 %B, 8
+ %D = or i32 %C, 128
+ %E = zext i32 %D to i64
+ ret i64 %E
+ 
+; CHECK: @test58
+; CHECK-NEXT:   %C = lshr i64 %A, 8
+; CHECK-NEXT:   %D = and i64 %C, 16777087
+; CHECK-NEXT:   %E = or i64 %D, 128
+; CHECK-NEXT:   ret i64 %E
+}
+
+define i64 @test59(i8 %A, i8 %B) nounwind {
+  %C = zext i8 %A to i32
+  %D = shl i32 %C, 4
+  %E = and i32 %D, 48
+  %F = zext i8 %B to i32
+  %G = lshr i32 %F, 4
+  %H = or i32 %G, %E
+  %I = zext i32 %H to i64
+  ret i64 %I
+; CHECK: @test59
+; CHECK-NEXT:   %C = zext i8 %A to i64
+; CHECK-NOT: i32
+; CHECK:   %F = zext i8 %B to i64
+; CHECK-NOT: i32
+; CHECK:   ret i64 %H
+}
+
+define <3 x i32> @test60(<4 x i32> %call4) nounwind {
+  %tmp11 = bitcast <4 x i32> %call4 to i128
+  %tmp9 = trunc i128 %tmp11 to i96
+  %tmp10 = bitcast i96 %tmp9 to <3 x i32>
+  ret <3 x i32> %tmp10
+  
+; CHECK: @test60
+; CHECK-NEXT: shufflevector
+; CHECK-NEXT: ret
+}
+
+define <4 x i32> @test61(<3 x i32> %call4) nounwind {
+  %tmp11 = bitcast <3 x i32> %call4 to i96
+  %tmp9 = zext i96 %tmp11 to i128
+  %tmp10 = bitcast i128 %tmp9 to <4 x i32>
+  ret <4 x i32> %tmp10
+; CHECK: @test61
+; CHECK-NEXT: shufflevector
+; CHECK-NEXT: ret
+}
+
+define <4 x i32> @test62(<3 x float> %call4) nounwind {
+  %tmp11 = bitcast <3 x float> %call4 to i96
+  %tmp9 = zext i96 %tmp11 to i128
+  %tmp10 = bitcast i128 %tmp9 to <4 x i32>
+  ret <4 x i32> %tmp10
+; CHECK: @test62
+; CHECK-NEXT: bitcast
+; CHECK-NEXT: shufflevector
+; CHECK-NEXT: ret
+}
+
+; PR7311 - Don't create invalid IR on scalar->vector cast.
+define <2 x float> @test63(i64 %tmp8) nounwind {
+entry:
+  %a = bitcast i64 %tmp8 to <2 x i32>           
+  %vcvt.i = uitofp <2 x i32> %a to <2 x float>  
+  ret <2 x float> %vcvt.i
+; CHECK: @test63
+; CHECK: bitcast
+; CHECK: uitofp
 }