; Tests to make sure elimination of casts is working correctly
+; 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 i8] ; <[32832 x i8]*> [#uses=1]
+
+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
+}
+
+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
+}
+
+; 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
+}
+
+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
+}
+
+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
+}
+
+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
+}
+
+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
+}
+
+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
+}
+
+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
+}
+
+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(i32, ...)
+
+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
+}
+
+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
+}
+
+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
+}
+
+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
+; %X = setlt sbyte %c, 0 ; setgt %A, 127
+; ret bool %X
+;}
+
+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
+; 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
+; 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
+}
-; RUN: if as < %s | opt -instcombine -dce | grep '%c'
-; RUN: then exit 1
-; RUN: else exit 0
-; RUN: fi
-
-implementation
-
-int "test1"(int %A)
-begin
- %c1 = cast int %A to uint
- %c2 = cast uint %c1 to int
- ret int %c2
-end
-
-ulong "test2"(ubyte %A)
-begin
- %c1 = cast ubyte %A to ushort
- %c2 = cast ushort %c1 to uint
- %Ret = cast uint %c2 to ulong
- ret ulong %Ret
-end
projects / oota-llvm.git / blobdiff