; Tests to make sure elimination of casts is working correctly
+; RUN: opt < %s -instcombine -S | FileCheck %s
+target datalayout = "E-p:64:64:64-p1:32:32:32-p2:64:64:64-p3:64:64:64-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"
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep '%c' | not grep cast
+@inbuf = external global [32832 x i8] ; <[32832 x i8]*> [#uses=1]
-%inbuf = external global [32832 x ubyte]
+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 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: %C = and i64 %A, 42
+; CHECK: %D = icmp eq i64 %C, 10
+; CHECK: ret i1 %D
+}
+
+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-LABEL: @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-LABEL: @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-LABEL: @test41(
+; CHECK: ret i32* %tmp1
+}
+
+define i32 addrspace(1)* @test41_addrspacecast_smaller(i32* %tmp1) {
+ %tmp64 = addrspacecast i32* %tmp1 to { i32 } addrspace(1)*
+ %tmp65 = getelementptr { i32 } addrspace(1)* %tmp64, i32 0, i32 0
+ ret i32 addrspace(1)* %tmp65
+; CHECK-LABEL: @test41_addrspacecast_smaller(
+; CHECK: addrspacecast i32* %tmp1 to i32 addrspace(1)*
+; CHECK-NEXT: ret i32 addrspace(1)*
+}
+
+define i32* @test41_addrspacecast_larger(i32 addrspace(1)* %tmp1) {
+ %tmp64 = addrspacecast i32 addrspace(1)* %tmp1 to { i32 }*
+ %tmp65 = getelementptr { i32 }* %tmp64, i32 0, i32 0
+ ret i32* %tmp65
+; CHECK-LABEL: @test41_addrspacecast_larger(
+; CHECK: addrspacecast i32 addrspace(1)* %tmp1 to i32*
+; CHECK-NEXT: ret i32*
+}
+
+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-LABEL: @test42(
+; CHECK: %Z = and i32 %X, 255
+}
-implementation
+; 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-LABEL: @test43(
+; CHECK-NEXT: %A = zext i8 %on_off to i64
+; CHECK-NEXT: %B = add nsw 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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @test48(
+; CHECK-NEXT: %b = zext i8 %a to i64
+; CHECK-NEXT: %B = zext i8 %A to i64
+; CHECK-NEXT: %C = shl nuw nsw 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-LABEL: @test49(
+; CHECK-NEXT: %C = shl i64 %A, 32
+; CHECK-NEXT: ashr exact 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-LABEL: @test50(
+; lshr+shl will be handled by DAGCombine.
+; CHECK-NEXT: lshr i64 %A, 2
+; CHECK-NEXT: shl i64 %a, 32
+; CHECK-NEXT: add i64 {{.*}}, -4294967296
+; CHECK-NEXT: %E = ashr exact 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-LABEL: @test51(
+; CHECK-NEXT: %C = and i64 %A, 4294967294
+; CHECK-NEXT: %D = or i64 %A, 1
+; CHECK-NEXT: %E = select i1 %cond, i64 %C, i64 %D
+; CHECK-NEXT: %sext = shl i64 %E, 32
+; CHECK-NEXT: %F = ashr exact i64 %sext, 32
+; CHECK-NEXT: ret i64 %F
+}
-int %test1(int %A) {
- %c1 = cast int %A to uint
- %c2 = cast uint %c1 to int
- ret int %c2
+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-LABEL: @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
}
-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 @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-LABEL: @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
}
-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
+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-LABEL: @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
}
-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 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-LABEL: @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
}
-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 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-LABEL: @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
}
-int %test6(ulong %A) {
- %c1 = cast ulong %A to uint
- %res = cast uint %c1 to int
- ret int %res
+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-LABEL: @test57(
+; CHECK-NEXT: %C = lshr i64 %A, 8
+; CHECK-NEXT: %E = and i64 %C, 16777215
+; CHECK-NEXT: ret i64 %E
}
-long %test7(bool %A) {
- %c1 = cast bool %A to int
- %res = cast int %c1 to long
- ret long %res
+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-LABEL: @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
}
-long %test8(sbyte %A) {
- %c1 = cast sbyte %A to ulong
- %res = cast ulong %c1 to long
- ret long %res
+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-LABEL: @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
}
-short %test9(short %A) {
- %c1 = cast short %A to int
- %c2 = cast int %c1 to short
- ret short %c2
+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-LABEL: @test60(
+; CHECK-NEXT: shufflevector
+; CHECK-NEXT: ret
}
-short %test10(short %A) {
- %c1 = cast short %A to uint
- %c2 = cast uint %c1 to short
- ret short %c2
+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-LABEL: @test61(
+; CHECK-NEXT: shufflevector
+; CHECK-NEXT: ret
}
-declare void %varargs(int, ...)
+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-LABEL: @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-LABEL: @test63(
+; CHECK: bitcast
+; CHECK: uitofp
+}
+
+define <4 x float> @test64(<4 x float> %c) nounwind {
+ %t0 = bitcast <4 x float> %c to <4 x i32>
+ %t1 = bitcast <4 x i32> %t0 to <4 x float>
+ ret <4 x float> %t1
+; CHECK-LABEL: @test64(
+; CHECK-NEXT: ret <4 x float> %c
+}
+
+define <4 x float> @test65(<4 x float> %c) nounwind {
+ %t0 = bitcast <4 x float> %c to <2 x double>
+ %t1 = bitcast <2 x double> %t0 to <4 x float>
+ ret <4 x float> %t1
+; CHECK-LABEL: @test65(
+; CHECK-NEXT: ret <4 x float> %c
+}
+
+define <2 x float> @test66(<2 x float> %c) nounwind {
+ %t0 = bitcast <2 x float> %c to double
+ %t1 = bitcast double %t0 to <2 x float>
+ ret <2 x float> %t1
+; CHECK-LABEL: @test66(
+; CHECK-NEXT: ret <2 x float> %c
+}
+
+define float @test2c() {
+ ret float extractelement (<2 x float> bitcast (double bitcast (<2 x float> <float -1.000000e+00, float -1.000000e+00> to double) to <2 x float>), i32 0)
+; CHECK-LABEL: @test2c(
+; CHECK-NOT: extractelement
+}
+
+define i64 @test_mmx(<2 x i32> %c) nounwind {
+ %A = bitcast <2 x i32> %c to x86_mmx
+ %B = bitcast x86_mmx %A to <2 x i32>
+ %C = bitcast <2 x i32> %B to i64
+ ret i64 %C
+; CHECK-LABEL: @test_mmx(
+; CHECK-NOT: x86_mmx
+}
+
+define i64 @test_mmx_const(<2 x i32> %c) nounwind {
+ %A = bitcast <2 x i32> zeroinitializer to x86_mmx
+ %B = bitcast x86_mmx %A to <2 x i32>
+ %C = bitcast <2 x i32> %B to i64
+ ret i64 %C
+; CHECK-LABEL: @test_mmx_const(
+; CHECK-NOT: x86_mmx
+}
+
+; PR12514
+define i1 @test67(i1 %a, i32 %b) {
+ %tmp2 = zext i1 %a to i32
+ %conv6 = xor i32 %tmp2, 1
+ %and = and i32 %b, %conv6
+ %sext = shl nuw nsw i32 %and, 24
+ %neg.i = xor i32 %sext, -16777216
+ %conv.i.i = ashr exact i32 %neg.i, 24
+ %trunc = trunc i32 %conv.i.i to i8
+ %tobool.i = icmp eq i8 %trunc, 0
+ ret i1 %tobool.i
+; CHECK-LABEL: @test67(
+; CHECK: ret i1 false
+}
+
+%s = type { i32, i32, i32 }
+
+define %s @test68(%s *%p, i64 %i) {
+; CHECK-LABEL: @test68(
+ %o = mul i64 %i, 12
+ %q = bitcast %s* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %o
+; CHECK-NEXT: getelementptr %s*
+ %r = bitcast i8* %pp to %s*
+ %l = load %s* %r
+; CHECK-NEXT: load %s*
+ ret %s %l
+; CHECK-NEXT: ret %s
+}
-void %test11(int* %P) {
- %c = cast int* %P to short*
- call void(int, ...)* %varargs(int 5, short* %c)
- ret void
+; addrspacecasts should be eliminated.
+define %s @test68_addrspacecast(%s* %p, i64 %i) {
+; CHECK-LABEL: @test68_addrspacecast(
+; CHECK-NEXT: getelementptr %s*
+; CHECK-NEXT: load %s*
+; CHECK-NEXT: ret %s
+ %o = mul i64 %i, 12
+ %q = addrspacecast %s* %p to i8 addrspace(2)*
+ %pp = getelementptr inbounds i8 addrspace(2)* %q, i64 %o
+ %r = addrspacecast i8 addrspace(2)* %pp to %s*
+ %l = load %s* %r
+ ret %s %l
}
-int* %test12() {
- %p = malloc [4 x sbyte]
- %c = cast [4 x sbyte]* %p to int*
- ret int* %c
+define %s @test68_addrspacecast_2(%s* %p, i64 %i) {
+; CHECK-LABEL: @test68_addrspacecast_2(
+; CHECK-NEXT: getelementptr %s* %p
+; CHECK-NEXT: addrspacecast
+; CHECK-NEXT: load %s addrspace(1)*
+; CHECK-NEXT: ret %s
+ %o = mul i64 %i, 12
+ %q = addrspacecast %s* %p to i8 addrspace(2)*
+ %pp = getelementptr inbounds i8 addrspace(2)* %q, i64 %o
+ %r = addrspacecast i8 addrspace(2)* %pp to %s addrspace(1)*
+ %l = load %s addrspace(1)* %r
+ ret %s %l
}
-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 %s @test68_as1(%s addrspace(1)* %p, i32 %i) {
+; CHECK-LABEL: @test68_as1(
+ %o = mul i32 %i, 12
+ %q = bitcast %s addrspace(1)* %p to i8 addrspace(1)*
+ %pp = getelementptr inbounds i8 addrspace(1)* %q, i32 %o
+; CHECK-NEXT: getelementptr %s addrspace(1)*
+ %r = bitcast i8 addrspace(1)* %pp to %s addrspace(1)*
+ %l = load %s addrspace(1)* %r
+; CHECK-NEXT: load %s addrspace(1)*
+ ret %s %l
+; CHECK-NEXT: ret %s
}
-bool %test14(sbyte %A) {
- %c = cast sbyte %A to ubyte
- %X = setlt ubyte %c, 128 ; setge %A, 0
- ret bool %X
+define double @test69(double *%p, i64 %i) {
+; CHECK-LABEL: @test69(
+ %o = shl nsw i64 %i, 3
+ %q = bitcast double* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %o
+; CHECK-NEXT: getelementptr inbounds double*
+ %r = bitcast i8* %pp to double*
+ %l = load double* %r
+; CHECK-NEXT: load double*
+ ret double %l
+; CHECK-NEXT: ret double
}
-bool %test15(ubyte %A) {
- %c = cast ubyte %A to sbyte
- %X = setlt sbyte %c, 0 ; setgt %A, 127
- ret bool %X
+define %s @test70(%s *%p, i64 %i) {
+; CHECK-LABEL: @test70(
+ %o = mul nsw i64 %i, 36
+; CHECK-NEXT: mul nsw i64 %i, 3
+ %q = bitcast %s* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %o
+; CHECK-NEXT: getelementptr inbounds %s*
+ %r = bitcast i8* %pp to %s*
+ %l = load %s* %r
+; CHECK-NEXT: load %s*
+ ret %s %l
+; CHECK-NEXT: ret %s
}
-bool %test16(int* %P) {
- %c = cast int* %P to bool ;; setne P, null
- ret bool %c
+define double @test71(double *%p, i64 %i) {
+; CHECK-LABEL: @test71(
+ %o = shl i64 %i, 5
+; CHECK-NEXT: shl i64 %i, 2
+ %q = bitcast double* %p to i8*
+ %pp = getelementptr i8* %q, i64 %o
+; CHECK-NEXT: getelementptr double*
+ %r = bitcast i8* %pp to double*
+ %l = load double* %r
+; CHECK-NEXT: load double*
+ ret double %l
+; CHECK-NEXT: ret double
}
+define double @test72(double *%p, i32 %i) {
+; CHECK-LABEL: @test72(
+ %so = shl nsw i32 %i, 3
+ %o = sext i32 %so to i64
+; CHECK-NEXT: sext i32 %i to i64
+ %q = bitcast double* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %o
+; CHECK-NEXT: getelementptr inbounds double*
+ %r = bitcast i8* %pp to double*
+ %l = load double* %r
+; CHECK-NEXT: load double*
+ ret double %l
+; CHECK-NEXT: ret double
+}
+
+define double @test73(double *%p, i128 %i) {
+; CHECK-LABEL: @test73(
+ %lo = shl nsw i128 %i, 3
+ %o = trunc i128 %lo to i64
+; CHECK-NEXT: trunc i128 %i to i64
+ %q = bitcast double* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %o
+; CHECK-NEXT: getelementptr double*
+ %r = bitcast i8* %pp to double*
+ %l = load double* %r
+; CHECK-NEXT: load double*
+ ret double %l
+; CHECK-NEXT: ret double
+}
+
+define double @test74(double *%p, i64 %i) {
+; CHECK-LABEL: @test74(
+ %q = bitcast double* %p to i64*
+ %pp = getelementptr inbounds i64* %q, i64 %i
+; CHECK-NEXT: getelementptr inbounds double*
+ %r = bitcast i64* %pp to double*
+ %l = load double* %r
+; CHECK-NEXT: load double*
+ ret double %l
+; CHECK-NEXT: ret double
+}
+
+define i32* @test75(i32* %p, i32 %x) {
+; CHECK-LABEL: @test75(
+ %y = shl i32 %x, 3
+; CHECK-NEXT: shl i32 %x, 3
+ %z = sext i32 %y to i64
+; CHECK-NEXT: sext i32 %y to i64
+ %q = bitcast i32* %p to i8*
+ %r = getelementptr i8* %q, i64 %z
+ %s = bitcast i8* %r to i32*
+ ret i32* %s
+}
+
+define %s @test76(%s *%p, i64 %i, i64 %j) {
+; CHECK-LABEL: @test76(
+ %o = mul i64 %i, 12
+ %o2 = mul nsw i64 %o, %j
+; CHECK-NEXT: %o2 = mul i64 %i, %j
+ %q = bitcast %s* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %o2
+; CHECK-NEXT: getelementptr %s* %p, i64 %o2
+ %r = bitcast i8* %pp to %s*
+ %l = load %s* %r
+; CHECK-NEXT: load %s*
+ ret %s %l
+; CHECK-NEXT: ret %s
+}
+
+define %s @test77(%s *%p, i64 %i, i64 %j) {
+; CHECK-LABEL: @test77(
+ %o = mul nsw i64 %i, 36
+ %o2 = mul nsw i64 %o, %j
+; CHECK-NEXT: %o = mul nsw i64 %i, 3
+; CHECK-NEXT: %o2 = mul nsw i64 %o, %j
+ %q = bitcast %s* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %o2
+; CHECK-NEXT: getelementptr inbounds %s* %p, i64 %o2
+ %r = bitcast i8* %pp to %s*
+ %l = load %s* %r
+; CHECK-NEXT: load %s*
+ ret %s %l
+; CHECK-NEXT: ret %s
+}
+
+define %s @test78(%s *%p, i64 %i, i64 %j, i32 %k, i32 %l, i128 %m, i128 %n) {
+; CHECK-LABEL: @test78(
+ %a = mul nsw i32 %k, 36
+; CHECK-NEXT: mul nsw i32 %k, 3
+ %b = mul nsw i32 %a, %l
+; CHECK-NEXT: mul nsw i32 %a, %l
+ %c = sext i32 %b to i128
+; CHECK-NEXT: sext i32 %b to i128
+ %d = mul nsw i128 %c, %m
+; CHECK-NEXT: mul nsw i128 %c, %m
+ %e = mul i128 %d, %n
+; CHECK-NEXT: mul i128 %d, %n
+ %f = trunc i128 %e to i64
+; CHECK-NEXT: trunc i128 %e to i64
+ %g = mul nsw i64 %f, %i
+; CHECK-NEXT: mul i64 %f, %i
+ %h = mul nsw i64 %g, %j
+; CHECK-NEXT: mul i64 %g, %j
+ %q = bitcast %s* %p to i8*
+ %pp = getelementptr inbounds i8* %q, i64 %h
+; CHECK-NEXT: getelementptr %s* %p, i64 %h
+ %r = bitcast i8* %pp to %s*
+ %load = load %s* %r
+; CHECK-NEXT: load %s*
+ ret %s %load
+; CHECK-NEXT: ret %s
+}
+
+define %s @test79(%s *%p, i64 %i, i32 %j) {
+; CHECK-LABEL: @test79(
+ %a = mul nsw i64 %i, 36
+; CHECK: mul nsw i64 %i, 36
+ %b = trunc i64 %a to i32
+ %c = mul i32 %b, %j
+ %q = bitcast %s* %p to i8*
+; CHECK: bitcast
+ %pp = getelementptr inbounds i8* %q, i32 %c
+ %r = bitcast i8* %pp to %s*
+ %l = load %s* %r
+ ret %s %l
+}
+
+define double @test80([100 x double]* %p, i32 %i) {
+; CHECK-LABEL: @test80(
+ %tmp = shl nsw i32 %i, 3
+; CHECK-NEXT: sext i32 %i to i64
+ %q = bitcast [100 x double]* %p to i8*
+ %pp = getelementptr i8* %q, i32 %tmp
+; CHECK-NEXT: getelementptr [100 x double]*
+ %r = bitcast i8* %pp to double*
+ %l = load double* %r
+; CHECK-NEXT: load double*
+ ret double %l
+; CHECK-NEXT: ret double
+}
+
+define double @test80_addrspacecast([100 x double] addrspace(1)* %p, i32 %i) {
+; CHECK-LABEL: @test80_addrspacecast(
+; CHECK-NEXT: getelementptr [100 x double] addrspace(1)* %p
+; CHECK-NEXT: load double addrspace(1)*
+; CHECK-NEXT: ret double
+ %tmp = shl nsw i32 %i, 3
+ %q = addrspacecast [100 x double] addrspace(1)* %p to i8 addrspace(2)*
+ %pp = getelementptr i8 addrspace(2)* %q, i32 %tmp
+ %r = addrspacecast i8 addrspace(2)* %pp to double addrspace(1)*
+ %l = load double addrspace(1)* %r
+ ret double %l
+}
+
+define double @test80_addrspacecast_2([100 x double] addrspace(1)* %p, i32 %i) {
+; CHECK-LABEL: @test80_addrspacecast_2(
+; CHECK-NEXT: getelementptr [100 x double] addrspace(1)*
+; CHECK-NEXT: addrspacecast double addrspace(1)*
+; CHECK-NEXT: load double addrspace(3)*
+; CHECK-NEXT: ret double
+ %tmp = shl nsw i32 %i, 3
+ %q = addrspacecast [100 x double] addrspace(1)* %p to i8 addrspace(2)*
+ %pp = getelementptr i8 addrspace(2)* %q, i32 %tmp
+ %r = addrspacecast i8 addrspace(2)* %pp to double addrspace(3)*
+ %l = load double addrspace(3)* %r
+ ret double %l
+}
+
+define double @test80_as1([100 x double] addrspace(1)* %p, i16 %i) {
+; CHECK-LABEL: @test80_as1(
+ %tmp = shl nsw i16 %i, 3
+; CHECK-NEXT: sext i16 %i to i32
+ %q = bitcast [100 x double] addrspace(1)* %p to i8 addrspace(1)*
+ %pp = getelementptr i8 addrspace(1)* %q, i16 %tmp
+; CHECK-NEXT: getelementptr [100 x double] addrspace(1)*
+ %r = bitcast i8 addrspace(1)* %pp to double addrspace(1)*
+ %l = load double addrspace(1)* %r
+; CHECK-NEXT: load double addrspace(1)*
+ ret double %l
+; CHECK-NEXT: ret double
+}
+
+define double @test81(double *%p, float %f) {
+ %i = fptosi float %f to i64
+ %q = bitcast double* %p to i8*
+ %pp = getelementptr i8* %q, i64 %i
+ %r = bitcast i8* %pp to double*
+ %l = load double* %r
+ ret double %l
+}
+
+define i64 @test82(i64 %A) nounwind {
+ %B = trunc i64 %A to i32
+ %C = lshr i32 %B, 8
+ %D = shl i32 %C, 9
+ %E = zext i32 %D to i64
+ ret i64 %E
+
+; CHECK-LABEL: @test82(
+; CHECK-NEXT: [[REG:%[0-9]*]] = shl i64 %A, 1
+; CHECK-NEXT: %E = and i64 [[REG]], 4294966784
+; CHECK-NEXT: ret i64 %E
+}
+
+; PR15959
+define i64 @test83(i16 %a, i64 %k) {
+ %conv = sext i16 %a to i32
+ %sub = add nsw i64 %k, -1
+ %sh_prom = trunc i64 %sub to i32
+ %shl = shl i32 %conv, %sh_prom
+ %sh_prom1 = zext i32 %shl to i64
+ ret i64 %sh_prom1
+
+; CHECK-LABEL: @test83(
+; CHECK: %sub = add i64 %k, 4294967295
+; CHECK: %sh_prom = trunc i64 %sub to i32
+; CHECK: %shl = shl i32 %conv, %sh_prom
+}
+
+define i8 @test84(i32 %a) {
+ %add = add nsw i32 %a, -16777216
+ %shr = lshr exact i32 %add, 23
+ %trunc = trunc i32 %shr to i8
+ ret i8 %trunc
+
+; CHECK-LABEL: @test84(
+; CHECK: [[ADD:%.*]] = add i32 %a, 2130706432
+; CHECK: [[SHR:%.*]] = lshr exact i32 [[ADD]], 23
+; CHECK: [[CST:%.*]] = trunc i32 [[SHR]] to i8
+}
+
+define i8 @test85(i32 %a) {
+ %add = add nuw i32 %a, -16777216
+ %shr = lshr exact i32 %add, 23
+ %trunc = trunc i32 %shr to i8
+ ret i8 %trunc
+
+; CHECK-LABEL: @test85(
+; CHECK: [[ADD:%.*]] = add i32 %a, 2130706432
+; CHECK: [[SHR:%.*]] = lshr exact i32 [[ADD]], 23
+; CHECK: [[CST:%.*]] = trunc i32 [[SHR]] to i8
+}
+
+; Overflow on a float to int or int to float conversion is undefined (PR21130).
+
+define i8 @overflow_fptosi() {
+ %i = fptosi double 1.56e+02 to i8
+ ret i8 %i
+; CHECK-LABEL: @overflow_fptosi(
+; CHECK-NEXT: ret i8 undef
+}
-short %test17(bool %tmp3) {
- %c = cast bool %tmp3 to int
- %t86 = cast int %c to short
- ret short %t86
+define i8 @overflow_fptoui() {
+ %i = fptoui double 2.56e+02 to i8
+ ret i8 %i
+; CHECK-LABEL: @overflow_fptoui(
+; CHECK-NEXT: ret i8 undef
}
-short %test18(sbyte %tmp3) {
- %c = cast sbyte %tmp3 to int
- %t86 = cast int %c to short
- ret short %t86
+; The maximum float is approximately 2 ** 128 which is 3.4E38.
+; The constant below is 4E38. Use a 130 bit integer to hold that
+; number; 129-bits for the value + 1 bit for the sign.
+define float @overflow_uitofp() {
+ %i = uitofp i130 400000000000000000000000000000000000000 to float
+ ret float %i
+; CHECK-LABEL: @overflow_uitofp(
+; CHECK-NEXT: ret float undef
}
-bool %test19(int %X) {
- %Y = cast int %X to long
- %Z = setlt long %Y, 12345
- ret bool %Z
+define float @overflow_sitofp() {
+ %i = sitofp i130 400000000000000000000000000000000000000 to float
+ ret float %i
+; CHECK-LABEL: @overflow_sitofp(
+; CHECK-NEXT: ret float undef
}
-bool %test20(bool %B) {
- %C = cast bool %B to int
- %D = setlt int %C, -1
- ret bool %D ;; false
+define i32 @PR21388(i32* %v) {
+ %icmp = icmp slt i32* %v, null
+ %sext = sext i1 %icmp to i32
+ ret i32 %sext
+; CHECK-LABEL: @PR21388(
+; CHECK-NEXT: %[[icmp:.*]] = icmp slt i32* %v, null
+; CHECK-NEXT: %[[sext:.*]] = sext i1 %[[icmp]] to i32
+; CHECK-NEXT: ret i32 %[[sext]]
}
projects / oota-llvm.git / blobdiff