xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/cast.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; 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"

@inbuf = external global [32832 x i8]           ; <[32832 x i8]*> [#uses=1]

define i32 @test1(i32 %A) {
; CHECK-LABEL: @test1(
; CHECK-NEXT:    ret i32 %A
;
  %c1 = bitcast i32 %A to i32             ; <i32> [#uses=1]
  %c2 = bitcast i32 %c1 to i32            ; <i32> [#uses=1]
  ret i32 %c2
}

define i64 @test2(i8 %A) {
; CHECK-LABEL: @test2(
; CHECK-NEXT:    [[RET:%.*]] = zext i8 %A to i64
; CHECK-NEXT:    ret i64 [[RET]]
;
  %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
}

; This function should just use bitwise AND
define i64 @test3(i64 %A) {
; CHECK-LABEL: @test3(
; CHECK-NEXT:    [[C2:%.*]] = and i64 %A, 255
; CHECK-NEXT:    ret i64 [[C2]]
;
  %c1 = trunc i64 %A to i8                ; <i8> [#uses=1]
  %c2 = zext i8 %c1 to i64                ; <i64> [#uses=1]
  ret i64 %c2
}

define i32 @test4(i32 %A, i32 %B) {
; CHECK-LABEL: @test4(
; CHECK-NEXT:    [[COND:%.*]] = icmp slt i32 %A, %B
; CHECK-NEXT:    [[RESULT:%.*]] = zext i1 [[COND]] to i32
; CHECK-NEXT:    ret i32 [[RESULT]]
;
  %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
}

define i32 @test5(i1 %B) {
        ; This cast should get folded into
; CHECK-LABEL: @test5(
; CHECK-NEXT:    [[RESULT:%.*]] = zext i1 %B to i32
; CHECK-NEXT:    ret i32 [[RESULT]]
;
  %c = zext i1 %B to i8           ; <i8> [#uses=1]
  ; this cast
  %result = zext i8 %c to i32             ; <i32> [#uses=1]
  ret i32 %result
}

define i32 @test6(i64 %A) {
; CHECK-LABEL: @test6(
; CHECK-NEXT:    [[C1:%.*]] = trunc i64 %A to i32
; CHECK-NEXT:    ret i32 [[C1]]
;
  %c1 = trunc i64 %A to i32               ; <i32> [#uses=1]
  %res = bitcast i32 %c1 to i32           ; <i32> [#uses=1]
  ret i32 %res
}

define i64 @test7(i1 %A) {
; CHECK-LABEL: @test7(
; CHECK-NEXT:    [[RES:%.*]] = zext i1 %A to i64
; CHECK-NEXT:    ret i64 [[RES]]
;
  %c1 = zext i1 %A to i32         ; <i32> [#uses=1]
  %res = sext i32 %c1 to i64              ; <i64> [#uses=1]
  ret i64 %res
}

define i64 @test8(i8 %A) {
; CHECK-LABEL: @test8(
; CHECK-NEXT:    [[C1:%.*]] = sext i8 %A to i64
; CHECK-NEXT:    ret i64 [[C1]]
;
  %c1 = sext i8 %A to i64         ; <i64> [#uses=1]
  %res = bitcast i64 %c1 to i64           ; <i64> [#uses=1]
  ret i64 %res
}

define i16 @test9(i16 %A) {
; CHECK-LABEL: @test9(
; CHECK-NEXT:    ret i16 %A
;
  %c1 = sext i16 %A to i32                ; <i32> [#uses=1]
  %c2 = trunc i32 %c1 to i16              ; <i16> [#uses=1]
  ret i16 %c2
}

define i16 @test10(i16 %A) {
; CHECK-LABEL: @test10(
; CHECK-NEXT:    ret i16 %A
;
  %c1 = sext i16 %A to i32                ; <i32> [#uses=1]
  %c2 = trunc i32 %c1 to i16              ; <i16> [#uses=1]
  ret i16 %c2
}

declare void @varargs(i32, ...)

define void @test11(i32* %P) {
; CHECK-LABEL: @test11(
; CHECK-NEXT:    call void (i32, ...) @varargs(i32 5, i32* %P)
; CHECK-NEXT:    ret void
;
  %c = bitcast i32* %P to i16*            ; <i16*> [#uses=1]
  call void (i32, ...) @varargs( i32 5, i16* %c )
  ret void
}

declare i32 @__gxx_personality_v0(...)
define void @test_invoke_vararg_cast(i32* %a, i32* %b) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
; CHECK-LABEL: @test_invoke_vararg_cast(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    invoke void (i32, ...) @varargs(i32 1, i32* %b, i32* %a)
; CHECK-NEXT:    to label %invoke.cont unwind label %lpad
; CHECK:       invoke.cont:
; CHECK-NEXT:    ret void
; CHECK:       lpad:
; CHECK-NEXT:    [[TMP0:%.*]] = landingpad { i8*, i32
;
entry:
  %0 = bitcast i32* %b to i8*
  %1 = bitcast i32* %a to i64*
  invoke void (i32, ...) @varargs(i32 1, i8* %0, i64* %1)
  to label %invoke.cont unwind label %lpad

invoke.cont:                                      ; preds = %entry
  ret void

lpad:                                             ; preds = %entry
  %2 = landingpad { i8*, i32 }
  cleanup
  ret void
}

define i8* @test13(i64 %A) {
; CHECK-LABEL: @test13(
; CHECK-NEXT:    [[C:%.*]] = getelementptr [32832 x i8], [32832 x i8]* @inbuf, i64 0, i64 %A
; CHECK-NEXT:    ret i8* [[C]]
;
  %c = getelementptr [0 x i8], [0 x i8]* bitcast ([32832 x i8]* @inbuf to [0 x i8]*), i64 0, i64 %A             ; <i8*> [#uses=1]
  ret i8* %c
}

define i1 @test14(i8 %A) {
; CHECK-LABEL: @test14(
; CHECK-NEXT:    [[X:%.*]] = icmp sgt i8 %A, -1
; CHECK-NEXT:    ret i1 [[X]]
;
  %c = bitcast i8 %A to i8                ; <i8> [#uses=1]
  %X = icmp ult i8 %c, -128               ; <i1> [#uses=1]
  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) {
; CHECK-LABEL: @test16(
; CHECK-NEXT:    [[C:%.*]] = icmp ne i32* %P, null
; CHECK-NEXT:    ret i1 [[C]]
;
  %c = icmp ne i32* %P, null              ; <i1> [#uses=1]
  ret i1 %c
}

define i16 @test17(i1 %tmp3) {
; CHECK-LABEL: @test17(
; CHECK-NEXT:    [[T86:%.*]] = zext i1 %tmp3 to i16
; CHECK-NEXT:    ret i16 [[T86]]
;
  %c = zext i1 %tmp3 to i32               ; <i32> [#uses=1]
  %t86 = trunc i32 %c to i16              ; <i16> [#uses=1]
  ret i16 %t86
}

define i16 @test18(i8 %tmp3) {
; CHECK-LABEL: @test18(
; CHECK-NEXT:    [[T86:%.*]] = sext i8 %tmp3 to i16
; CHECK-NEXT:    ret i16 [[T86]]
;
  %c = sext i8 %tmp3 to i32               ; <i32> [#uses=1]
  %t86 = trunc i32 %c to i16              ; <i16> [#uses=1]
  ret i16 %t86
}

define i1 @test19(i32 %X) {
; CHECK-LABEL: @test19(
; CHECK-NEXT:    [[Z:%.*]] = icmp slt i32 %X, 12345
; CHECK-NEXT:    ret i1 [[Z]]
;
  %c = sext i32 %X to i64
  %Z = icmp slt i64 %c, 12345
  ret i1 %Z
}

define <2 x i1> @test19vec(<2 x i32> %X) {
; CHECK-LABEL: @test19vec(
; CHECK-NEXT:    [[Z:%.*]] = icmp slt <2 x i32> %X, <i32 12345, i32 2147483647>
; CHECK-NEXT:    ret <2 x i1> [[Z]]
;
  %c = sext <2 x i32> %X to <2 x i64>
  %Z = icmp slt <2 x i64> %c, <i64 12345, i64 2147483647>
  ret <2 x i1> %Z
}

define <3 x i1> @test19vec2(<3 x i1> %X) {
; CHECK-LABEL: @test19vec2(
; CHECK-NEXT:    [[CMPEQ:%.*]] = xor <3 x i1> %X, <i1 true, i1 true, i1 true>
; CHECK-NEXT:    ret <3 x i1> [[CMPEQ]]
;
  %sext = sext <3 x i1> %X to <3 x i32>
  %cmpeq = icmp eq <3 x i32> %sext, zeroinitializer
  ret <3 x i1> %cmpeq
}

define i1 @test20(i1 %B) {
; CHECK-LABEL: @test20(
; CHECK-NEXT:    ret i1 false
;
  %c = zext i1 %B to i32          ; <i32> [#uses=1]
  %D = icmp slt i32 %c, -1                ; <i1> [#uses=1]
  ;; false
  ret i1 %D
}

define i32 @test21(i32 %X) {
; CHECK-LABEL: @test21(
; CHECK-NEXT:    [[C21:%.*]] = and i32 %X, 255
; CHECK-NEXT:    ret i32 [[C21]]
;
  %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
}

define i32 @test22(i32 %X) {
; CHECK-LABEL: @test22(
; CHECK-NEXT:    [[SEXT:%.*]] = shl i32 %X, 24
; CHECK-NEXT:    ret i32 [[SEXT]]
;
  %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
}

define i32 @test23(i32 %X) {
        ;; Turn into an AND even though X
; CHECK-LABEL: @test23(
; CHECK-NEXT:    [[C2:%.*]] = and i32 %X, 65535
; CHECK-NEXT:    ret i32 [[C2]]
;
  %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
}

define i1 @test24(i1 %C) {
; CHECK-LABEL: @test24(
; CHECK-NEXT:    ret i1 true
;
  %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
}

define i32 @test26(float %F) {
        ;; no need to cast from float->double.
; CHECK-LABEL: @test26(
; CHECK-NEXT:    [[D:%.*]] = fptosi float %F to i32
; CHECK-NEXT:    ret i32 [[D]]
;
  %c = fpext float %F to double           ; <double> [#uses=1]
  %D = fptosi double %c to i32            ; <i32> [#uses=1]
  ret i32 %D
}

define [4 x float]* @test27([9 x [4 x float]]* %A) {
; CHECK-LABEL: @test27(
; CHECK-NEXT:    [[C:%.*]] = getelementptr inbounds [9 x [4 x float]], [9 x [4 x float]]* %A, i64 0, i64 0
; CHECK-NEXT:    ret [4 x float]* [[C]]
;
  %c = bitcast [9 x [4 x float]]* %A to [4 x float]*              ; <[4 x float]*> [#uses=1]
  ret [4 x float]* %c
}

define float* @test28([4 x float]* %A) {
; CHECK-LABEL: @test28(
; CHECK-NEXT:    [[C:%.*]] = getelementptr inbounds [4 x float], [4 x float]* %A, i64 0, i64 0
; CHECK-NEXT:    ret float* [[C]]
;
  %c = bitcast [4 x float]* %A to float*          ; <float*> [#uses=1]
  ret float* %c
}

define i32 @test29(i32 %c1, i32 %c2) {
; CHECK-LABEL: @test29(
; CHECK-NEXT:    [[TMP2:%.*]] = or i32 %c2, %c1
; CHECK-NEXT:    [[TMP10:%.*]] = and i32 [[TMP2]], 255
; CHECK-NEXT:    ret i32 [[TMP10]]
;
  %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
}

define i32 @test30(i32 %c1) {
; CHECK-LABEL: @test30(
; CHECK-NEXT:    [[C3:%.*]] = and i32 %c1, 255
; CHECK-NEXT:    [[C4:%.*]] = xor i32 [[C3]], 1
; CHECK-NEXT:    ret i32 [[C4]]
;
  %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
}

define i1 @test31(i64 %A) {
; CHECK-LABEL: @test31(
; CHECK-NEXT:    [[C:%.*]] = and i64 %A, 42
; CHECK-NEXT:    [[D:%.*]] = icmp eq i64 [[C]], 10
; CHECK-NEXT:    ret i1 [[D]]
;
  %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
}

define i32 @test33(i32 %c1) {
; CHECK-LABEL: @test33(
; CHECK-NEXT:    ret i32 %c1
;
  %x = bitcast i32 %c1 to float           ; <float> [#uses=1]
  %y = bitcast float %x to i32            ; <i32> [#uses=1]
  ret i32 %y
}

define i16 @test34(i16 %a) {
; CHECK-LABEL: @test34(
; CHECK-NEXT:    [[TMP21:%.*]] = lshr i16 %a, 8
; CHECK-NEXT:    ret i16 [[TMP21]]
;
  %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
}

define i16 @test35(i16 %a) {
; CHECK-LABEL: @test35(
; CHECK-NEXT:    [[TMP2:%.*]] = lshr i16 %a, 8
; CHECK-NEXT:    ret i16 [[TMP2]]
;
  %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
}

; icmp sgt i32 %a, -1
; rdar://6480391
define i1 @test36(i32 %a) {
; CHECK-LABEL: @test36(
; CHECK-NEXT:    [[D:%.*]] = icmp sgt i32 %a, -1
; CHECK-NEXT:    ret i1 [[D]]
;
  %b = lshr i32 %a, 31
  %c = trunc i32 %b to i8
  %d = icmp eq i8 %c, 0
  ret i1 %d
}

; ret i1 false
define i1 @test37(i32 %a) {
; CHECK-LABEL: @test37(
; CHECK-NEXT:    ret i1 false
;
  %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
}

define i64 @test38(i32 %a) {
; CHECK-LABEL: @test38(
; CHECK-NEXT:    [[TMP1:%.*]] = icmp ne i32 %a, -2
; CHECK-NEXT:    [[TMP2:%.*]] = zext i1 [[TMP1]] to i64
; CHECK-NEXT:    ret i64 [[TMP2]]
;
  %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
}

define i16 @test39(i16 %a) {
; CHECK-LABEL: @test39(
; CHECK-NEXT:    [[TMP_UPGRD_32:%.*]] = call i16 @llvm.bswap.i16(i16 %a)
; CHECK-NEXT:    ret i16 [[TMP_UPGRD_32]]
;
  %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
}

define i16 @test40(i16 %a) {
; CHECK-LABEL: @test40(
; CHECK-NEXT:    [[TMP21:%.*]] = lshr i16 %a, 9
; CHECK-NEXT:    [[TMP5:%.*]] = shl i16 %a, 8
; CHECK-NEXT:    [[TMP_UPGRD_32:%.*]] = or i16 [[TMP21]], [[TMP5]]
; CHECK-NEXT:    ret i16 [[TMP_UPGRD_32]]
;
  %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
}

; PR1263
define i32* @test41(i32* %tmp1) {
; CHECK-LABEL: @test41(
; CHECK-NEXT:    ret i32* %tmp1
;
  %tmp64 = bitcast i32* %tmp1 to { i32 }*
  %tmp65 = getelementptr { i32 }, { i32 }* %tmp64, i32 0, i32 0
  ret i32* %tmp65
}

define i32 addrspace(1)* @test41_addrspacecast_smaller(i32* %tmp1) {
; CHECK-LABEL: @test41_addrspacecast_smaller(
; CHECK-NEXT:    [[TMP65:%.*]] = addrspacecast i32* %tmp1 to i32 addrspace(1)*
; CHECK-NEXT:    ret i32 addrspace(1)* [[TMP65]]
;
  %tmp64 = addrspacecast i32* %tmp1 to { i32 } addrspace(1)*
  %tmp65 = getelementptr { i32 }, { i32 } addrspace(1)* %tmp64, i32 0, i32 0
  ret i32 addrspace(1)* %tmp65
}

define i32* @test41_addrspacecast_larger(i32 addrspace(1)* %tmp1) {
; CHECK-LABEL: @test41_addrspacecast_larger(
; CHECK-NEXT:    [[TMP65:%.*]] = addrspacecast i32 addrspace(1)* %tmp1 to i32*
; CHECK-NEXT:    ret i32* [[TMP65]]
;
  %tmp64 = addrspacecast i32 addrspace(1)* %tmp1 to { i32 }*
  %tmp65 = getelementptr { i32 }, { i32 }* %tmp64, i32 0, i32 0
  ret i32* %tmp65
}

define i32 @test42(i32 %X) {
; CHECK-LABEL: @test42(
; CHECK-NEXT:    [[Z:%.*]] = and i32 %X, 255
; CHECK-NEXT:    ret i32 [[Z]]
;
  %Y = trunc i32 %X to i8         ; <i8> [#uses=1]
  %Z = zext i8 %Y to i32          ; <i32> [#uses=1]
  ret i32 %Z
}

; rdar://6598839
define zeroext i64 @test43(i8 zeroext %on_off) nounwind readonly {
; 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]]
;
  %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)
}

define i64 @test44(i8 %T) {
; CHECK-LABEL: @test44(
; CHECK-NEXT:    [[A:%.*]] = zext i8 %T to i64
; CHECK-NEXT:    [[B:%.*]] = or i64 [[A]], 1234
; CHECK-NEXT:    ret i64 [[B]]
;
  %A = zext i8 %T to i16
  %B = or i16 %A, 1234
  %C = zext i16 %B to i64
  ret i64 %C
}

define i64 @test45(i8 %A, i64 %Q) {
; 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]]
;
  %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
}


define i64 @test46(i64 %A) {
; CHECK-LABEL: @test46(
; CHECK-NEXT:    [[C:%.*]] = shl i64 %A, 8
; CHECK-NEXT:    [[D:%.*]] = and i64 [[C]], 10752
; CHECK-NEXT:    ret i64 [[D]]
;
  %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
}

define i64 @test47(i8 %A) {
; 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]]
;
  %B = sext i8 %A to i32
  %C = or i32 %B, 42
  %E = zext i32 %C to i64
  ret i64 %E
}

define i64 @test48(i8 %A1, i8 %a2) {
; CHECK-LABEL: @test48(
; CHECK-NEXT:    [[Z2:%.*]] = zext i8 %A1 to i32
; CHECK-NEXT:    [[C:%.*]] = shl nuw nsw i32 [[Z2]], 8
; CHECK-NEXT:    [[D:%.*]] = or i32 [[C]], [[Z2]]
; CHECK-NEXT:    [[E:%.*]] = zext i32 [[D]] to i64
; CHECK-NEXT:    ret i64 [[E]]
;
  %Z1 = zext i8 %a2 to i32
  %Z2 = zext i8 %A1 to i32
  %C = shl i32 %Z2, 8
  %D = or i32 %C, %Z2
  %E = zext i32 %D to i64
  ret i64 %E
}

define i64 @test49(i64 %A) {
; CHECK-LABEL: @test49(
; CHECK-NEXT:    [[C:%.*]] = shl i64 %A, 32
; CHECK-NEXT:    [[SEXT:%.*]] = ashr exact i64 [[C]], 32
; CHECK-NEXT:    [[D:%.*]] = or i64 [[SEXT]], 1
; CHECK-NEXT:    ret i64 [[D]]
;
  %B = trunc i64 %A to i32
  %C = or i32 %B, 1
  %D = sext i32 %C to i64
  ret i64 %D
}

define i64 @test50(i64 %A) {
; CHECK-LABEL: @test50(
; CHECK-NEXT:    [[A:%.*]] = lshr i64 %A, 2
; CHECK-NEXT:    [[D:%.*]] = shl i64 [[A]], 32
; CHECK-NEXT:    [[SEXT:%.*]] = add i64 [[D]], -4294967296
; CHECK-NEXT:    [[E:%.*]] = ashr exact i64 [[SEXT]], 32
; CHECK-NEXT:    ret i64 [[E]]
;
  %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
; lshr+shl will be handled by DAGCombine.
}

define i64 @test51(i64 %A, i1 %cond) {
; 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]]
;
  %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
}

define i32 @test52(i64 %A) {
; 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]]
;
  %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
}

define i64 @test53(i32 %A) {
; 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]]
;
  %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
}

define i32 @test54(i64 %A) {
; 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]]
;
  %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
}

define i64 @test55(i32 %A) {
; 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]]
;
  %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
}

define i64 @test56(i16 %A) nounwind {
; 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]]
;
  %tmp353 = sext i16 %A to i32
  %tmp354 = lshr i32 %tmp353, 5
  %tmp355 = zext i32 %tmp354 to i64
  ret i64 %tmp355
}

define i64 @test57(i64 %A) nounwind {
; CHECK-LABEL: @test57(
; CHECK-NEXT:    [[C:%.*]] = lshr i64 %A, 8
; CHECK-NEXT:    [[E:%.*]] = and i64 [[C]], 16777215
; CHECK-NEXT:    ret i64 [[E]]
;
  %B = trunc i64 %A to i32
  %C = lshr i32 %B, 8
  %E = zext i32 %C to i64
  ret i64 %E
}

define i64 @test58(i64 %A) nounwind {
; 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]]
;
  %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

}

define i64 @test59(i8 %A, i8 %B) nounwind {
; CHECK-LABEL: @test59(
; CHECK-NEXT:    [[C:%.*]] = zext i8 %A to i64
; CHECK-NEXT:    [[D:%.*]] = shl nuw nsw i64 [[C]], 4
; CHECK-NEXT:    [[E:%.*]] = and i64 [[D]], 48
; CHECK-NEXT:    [[F:%.*]] = zext i8 %B to i64
; CHECK-NEXT:    [[G:%.*]] = lshr i64 [[F]], 4
; CHECK-NEXT:    [[H:%.*]] = or i64 [[G]], [[E]]
; CHECK-NEXT:    ret i64 [[H]]
;
  %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
}

define <3 x i32> @test60(<4 x i32> %call4) nounwind {
; CHECK-LABEL: @test60(
; CHECK-NEXT:    [[TMP10:%.*]] = shufflevector <4 x i32> %call4, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2>
; CHECK-NEXT:    ret <3 x i32> [[TMP10]]
;
  %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

}

define <4 x i32> @test61(<3 x i32> %call4) nounwind {
; CHECK-LABEL: @test61(
; CHECK-NEXT:    [[TMP10:%.*]] = shufflevector <3 x i32> %call4, <3 x i32> <i32 0, i32 undef, i32 undef>, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
; CHECK-NEXT:    ret <4 x i32> [[TMP10]]
;
  %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
}

define <4 x i32> @test62(<3 x float> %call4) nounwind {
; CHECK-LABEL: @test62(
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast <3 x float> %call4 to <3 x i32>
; CHECK-NEXT:    [[TMP10:%.*]] = shufflevector <3 x i32> [[TMP1]], <3 x i32> <i32 0, i32 undef, i32 undef>, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
; CHECK-NEXT:    ret <4 x i32> [[TMP10]]
;
  %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
}

; PR7311 - Don't create invalid IR on scalar->vector cast.
define <2 x float> @test63(i64 %tmp8) nounwind {
; CHECK-LABEL: @test63(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[A:%.*]] = bitcast i64 %tmp8 to <2 x i32>
; CHECK-NEXT:    [[VCVT_I:%.*]] = uitofp <2 x i32> [[A]] to <2 x float>
; CHECK-NEXT:    ret <2 x float> [[VCVT_I]]
;
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
}

define <4 x float> @test64(<4 x float> %c) nounwind {
; CHECK-LABEL: @test64(
; CHECK-NEXT:    ret <4 x float> %c
;
  %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
}

define <4 x float> @test65(<4 x float> %c) nounwind {
; CHECK-LABEL: @test65(
; CHECK-NEXT:    ret <4 x float> %c
;
  %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
}

define <2 x float> @test66(<2 x float> %c) nounwind {
; CHECK-LABEL: @test66(
; CHECK-NEXT:    ret <2 x float> %c
;
  %t0 = bitcast <2 x float> %c to double
  %t1 = bitcast double %t0 to <2 x float>
  ret <2 x float> %t1
}

define float @test2c() {
; CHECK-LABEL: @test2c(
; CHECK-NEXT:    ret float -1.000000e+00
;
  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)
}

define i64 @test_mmx(<2 x i32> %c) nounwind {
; CHECK-LABEL: @test_mmx(
; CHECK-NEXT:    [[C:%.*]] = bitcast <2 x i32> %c to i64
; CHECK-NEXT:    ret i64 [[C]]
;
  %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
}

define i64 @test_mmx_const(<2 x i32> %c) nounwind {
; CHECK-LABEL: @test_mmx_const(
; CHECK-NEXT:    ret i64 0
;
  %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
}

; PR12514
define i1 @test67(i1 %a, i32 %b) {
; CHECK-LABEL: @test67(
; CHECK-NEXT:    ret i1 false
;
  %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
}

%s = type { i32, i32, i16 }

define %s @test68(%s *%p, i64 %i) {
; CHECK-LABEL: @test68(
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr %s, %s* %p, i64 %i
; CHECK-NEXT:    [[L:%.*]] = load %s, %s* [[PP1]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %o = mul i64 %i, 12
  %q = bitcast %s* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %o
  %r = bitcast i8* %pp to %s*
  %l = load %s, %s* %r
  ret %s %l
}

; addrspacecasts should be eliminated.
define %s @test68_addrspacecast(%s* %p, i64 %i) {
; CHECK-LABEL: @test68_addrspacecast(
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr %s, %s* %p, i64 %i
; CHECK-NEXT:    [[L:%.*]] = load %s, %s* [[PP1]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %o = mul i64 %i, 12
  %q = addrspacecast %s* %p to i8 addrspace(2)*
  %pp = getelementptr inbounds i8, i8 addrspace(2)* %q, i64 %o
  %r = addrspacecast i8 addrspace(2)* %pp to %s*
  %l = load %s, %s* %r
  ret %s %l
}

define %s @test68_addrspacecast_2(%s* %p, i64 %i) {
; CHECK-LABEL: @test68_addrspacecast_2(
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr %s, %s* %p, i64 %i
; CHECK-NEXT:    [[R:%.*]] = addrspacecast %s* [[PP1]] to %s addrspace(1)*
; CHECK-NEXT:    [[L:%.*]] = load %s, %s addrspace(1)* [[R]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %o = mul i64 %i, 12
  %q = addrspacecast %s* %p to i8 addrspace(2)*
  %pp = getelementptr inbounds i8, i8 addrspace(2)* %q, i64 %o
  %r = addrspacecast i8 addrspace(2)* %pp to %s addrspace(1)*
  %l = load %s, %s addrspace(1)* %r
  ret %s %l
}

define %s @test68_as1(%s addrspace(1)* %p, i32 %i) {
; CHECK-LABEL: @test68_as1(
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr %s, %s addrspace(1)* %p, i32 %i
; CHECK-NEXT:    [[L:%.*]] = load %s, %s addrspace(1)* [[PP1]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %o = mul i32 %i, 12
  %q = bitcast %s addrspace(1)* %p to i8 addrspace(1)*
  %pp = getelementptr inbounds i8, i8 addrspace(1)* %q, i32 %o
  %r = bitcast i8 addrspace(1)* %pp to %s addrspace(1)*
  %l = load %s, %s addrspace(1)* %r
  ret %s %l
}

define double @test69(double *%p, i64 %i) {
; CHECK-LABEL: @test69(
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr inbounds double, double* %p, i64 %i
; CHECK-NEXT:    [[L:%.*]] = load double, double* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %o = shl nsw i64 %i, 3
  %q = bitcast double* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %o
  %r = bitcast i8* %pp to double*
  %l = load double, double* %r
  ret double %l
}

define %s @test70(%s *%p, i64 %i) {
; CHECK-LABEL: @test70(
; CHECK-NEXT:    [[O:%.*]] = mul nsw i64 %i, 3
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr inbounds %s, %s* %p, i64 [[O]]
; CHECK-NEXT:    [[L:%.*]] = load %s, %s* [[PP1]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %o = mul nsw i64 %i, 36
  %q = bitcast %s* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %o
  %r = bitcast i8* %pp to %s*
  %l = load %s, %s* %r
  ret %s %l
}

define double @test71(double *%p, i64 %i) {
; CHECK-LABEL: @test71(
; CHECK-NEXT:    [[O:%.*]] = shl i64 %i, 2
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr double, double* %p, i64 [[O]]
; CHECK-NEXT:    [[L:%.*]] = load double, double* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %o = shl i64 %i, 5
  %q = bitcast double* %p to i8*
  %pp = getelementptr i8, i8* %q, i64 %o
  %r = bitcast i8* %pp to double*
  %l = load double, double* %r
  ret double %l
}

define double @test72(double *%p, i32 %i) {
; CHECK-LABEL: @test72(
; CHECK-NEXT:    [[O:%.*]] = sext i32 %i to i64
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr inbounds double, double* %p, i64 [[O]]
; CHECK-NEXT:    [[L:%.*]] = load double, double* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %so = shl nsw i32 %i, 3
  %o = sext i32 %so to i64
  %q = bitcast double* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %o
  %r = bitcast i8* %pp to double*
  %l = load double, double* %r
  ret double %l
}

define double @test73(double *%p, i128 %i) {
; CHECK-LABEL: @test73(
; CHECK-NEXT:    [[O:%.*]] = trunc i128 %i to i64
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr double, double* %p, i64 [[O]]
; CHECK-NEXT:    [[L:%.*]] = load double, double* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %lo = shl nsw i128 %i, 3
  %o = trunc i128 %lo to i64
  %q = bitcast double* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %o
  %r = bitcast i8* %pp to double*
  %l = load double, double* %r
  ret double %l
}

define double @test74(double *%p, i64 %i) {
; CHECK-LABEL: @test74(
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr inbounds double, double* %p, i64 %i
; CHECK-NEXT:    [[L:%.*]] = load double, double* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %q = bitcast double* %p to i64*
  %pp = getelementptr inbounds i64, i64* %q, i64 %i
  %r = bitcast i64* %pp to double*
  %l = load double, double* %r
  ret double %l
}

define i32* @test75(i32* %p, i32 %x) {
; CHECK-LABEL: @test75(
; CHECK-NEXT:    [[Y:%.*]] = shl i32 %x, 3
; CHECK-NEXT:    [[Z:%.*]] = sext i32 [[Y]] to i64
; CHECK-NEXT:    [[Q:%.*]] = bitcast i32* %p to i8*
; CHECK-NEXT:    [[R:%.*]] = getelementptr i8, i8* [[Q]], i64 [[Z]]
; CHECK-NEXT:    [[S:%.*]] = bitcast i8* [[R]] to i32*
; CHECK-NEXT:    ret i32* [[S]]
;
  %y = shl i32 %x, 3
  %z = sext i32 %y to i64
  %q = bitcast i32* %p to i8*
  %r = getelementptr i8, 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(
; CHECK-NEXT:    [[O2:%.*]] = mul i64 %i, %j
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr %s, %s* %p, i64 [[O2]]
; CHECK-NEXT:    [[L:%.*]] = load %s, %s* [[PP1]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %o = mul i64 %i, 12
  %o2 = mul nsw i64 %o, %j
  %q = bitcast %s* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %o2
  %r = bitcast i8* %pp to %s*
  %l = load %s, %s* %r
  ret %s %l
}

define %s @test77(%s *%p, i64 %i, i64 %j) {
; CHECK-LABEL: @test77(
; CHECK-NEXT:    [[O:%.*]] = mul nsw i64 %i, 3
; CHECK-NEXT:    [[O2:%.*]] = mul nsw i64 [[O]], %j
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr inbounds %s, %s* %p, i64 [[O2]]
; CHECK-NEXT:    [[L:%.*]] = load %s, %s* [[PP1]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %o = mul nsw i64 %i, 36
  %o2 = mul nsw i64 %o, %j
  %q = bitcast %s* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %o2
  %r = bitcast i8* %pp to %s*
  %l = load %s, %s* %r
  ret %s %l
}

define %s @test78(%s *%p, i64 %i, i64 %j, i32 %k, i32 %l, i128 %m, i128 %n) {
; CHECK-LABEL: @test78(
; CHECK-NEXT:    [[A:%.*]] = mul nsw i32 %k, 3
; CHECK-NEXT:    [[B:%.*]] = mul nsw i32 [[A]], %l
; CHECK-NEXT:    [[C:%.*]] = sext i32 [[B]] to i128
; CHECK-NEXT:    [[D:%.*]] = mul nsw i128 [[C]], %m
; CHECK-NEXT:    [[E:%.*]] = mul i128 [[D]], %n
; CHECK-NEXT:    [[F:%.*]] = trunc i128 [[E]] to i64
; CHECK-NEXT:    [[G:%.*]] = mul i64 [[F]], %i
; CHECK-NEXT:    [[H:%.*]] = mul i64 [[G]], %j
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr %s, %s* %p, i64 [[H]]
; CHECK-NEXT:    [[LOAD:%.*]] = load %s, %s* [[PP1]], align 4
; CHECK-NEXT:    ret %s [[LOAD]]
;
  %a = mul nsw i32 %k, 36
  %b = mul nsw i32 %a, %l
  %c = sext i32 %b to i128
  %d = mul nsw i128 %c, %m
  %e = mul i128 %d, %n
  %f = trunc i128 %e to i64
  %g = mul nsw i64 %f, %i
  %h = mul nsw i64 %g, %j
  %q = bitcast %s* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i64 %h
  %r = bitcast i8* %pp to %s*
  %load = load %s, %s* %r
  ret %s %load
}

define %s @test79(%s *%p, i64 %i, i32 %j) {
; CHECK-LABEL: @test79(
; CHECK-NEXT:    [[A:%.*]] = mul nsw i64 %i, 36
; CHECK-NEXT:    [[B:%.*]] = trunc i64 [[A]] to i32
; CHECK-NEXT:    [[C:%.*]] = mul i32 [[B]], %j
; CHECK-NEXT:    [[Q:%.*]] = bitcast %s* %p to i8*
; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 [[C]] to i64
; CHECK-NEXT:    [[PP:%.*]] = getelementptr inbounds i8, i8* [[Q]], i64 [[TMP1]]
; CHECK-NEXT:    [[R:%.*]] = bitcast i8* [[PP]] to %s*
; CHECK-NEXT:    [[L:%.*]] = load %s, %s* [[R]], align 4
; CHECK-NEXT:    ret %s [[L]]
;
  %a = mul nsw i64 %i, 36
  %b = trunc i64 %a to i32
  %c = mul i32 %b, %j
  %q = bitcast %s* %p to i8*
  %pp = getelementptr inbounds i8, i8* %q, i32 %c
  %r = bitcast i8* %pp to %s*
  %l = load %s, %s* %r
  ret %s %l
}

define double @test80([100 x double]* %p, i32 %i) {
; CHECK-LABEL: @test80(
; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 %i to i64
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr [100 x double], [100 x double]* %p, i64 0, i64 [[TMP1]]
; CHECK-NEXT:    [[L:%.*]] = load double, double* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %tmp = shl nsw i32 %i, 3
  %q = bitcast [100 x double]* %p to i8*
  %pp = getelementptr i8, i8* %q, i32 %tmp
  %r = bitcast i8* %pp to double*
  %l = load double, double* %r
  ret double %l
}

define double @test80_addrspacecast([100 x double] addrspace(1)* %p, i32 %i) {
; CHECK-LABEL: @test80_addrspacecast(
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr [100 x double], [100 x double] addrspace(1)* %p, i32 0, i32 %i
; CHECK-NEXT:    [[L:%.*]] = load double, double addrspace(1)* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %tmp = shl nsw i32 %i, 3
  %q = addrspacecast [100 x double] addrspace(1)* %p to i8 addrspace(2)*
  %pp = getelementptr i8, i8 addrspace(2)* %q, i32 %tmp
  %r = addrspacecast i8 addrspace(2)* %pp to double addrspace(1)*
  %l = load double, 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:    [[PP1:%.*]] = getelementptr [100 x double], [100 x double] addrspace(1)* %p, i32 0, i32 %i
; CHECK-NEXT:    [[R:%.*]] = addrspacecast double addrspace(1)* [[PP1]] to double addrspace(3)*
; CHECK-NEXT:    [[L:%.*]] = load double, double addrspace(3)* [[R]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %tmp = shl nsw i32 %i, 3
  %q = addrspacecast [100 x double] addrspace(1)* %p to i8 addrspace(2)*
  %pp = getelementptr i8, i8 addrspace(2)* %q, i32 %tmp
  %r = addrspacecast i8 addrspace(2)* %pp to double addrspace(3)*
  %l = load double, double addrspace(3)* %r
  ret double %l
}

define double @test80_as1([100 x double] addrspace(1)* %p, i16 %i) {
; CHECK-LABEL: @test80_as1(
; CHECK-NEXT:    [[TMP1:%.*]] = sext i16 %i to i32
; CHECK-NEXT:    [[PP1:%.*]] = getelementptr [100 x double], [100 x double] addrspace(1)* %p, i32 0, i32 [[TMP1]]
; CHECK-NEXT:    [[L:%.*]] = load double, double addrspace(1)* [[PP1]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %tmp = shl nsw i16 %i, 3
  %q = bitcast [100 x double] addrspace(1)* %p to i8 addrspace(1)*
  %pp = getelementptr i8, i8 addrspace(1)* %q, i16 %tmp
  %r = bitcast i8 addrspace(1)* %pp to double addrspace(1)*
  %l = load double, double addrspace(1)* %r
  ret double %l
}

define double @test81(double *%p, float %f) {
; CHECK-LABEL: @test81(
; CHECK-NEXT:    [[I:%.*]] = fptosi float %f to i64
; CHECK-NEXT:    [[Q:%.*]] = bitcast double* %p to i8*
; CHECK-NEXT:    [[PP:%.*]] = getelementptr i8, i8* [[Q]], i64 [[I]]
; CHECK-NEXT:    [[R:%.*]] = bitcast i8* [[PP]] to double*
; CHECK-NEXT:    [[L:%.*]] = load double, double* [[R]], align 8
; CHECK-NEXT:    ret double [[L]]
;
  %i = fptosi float %f to i64
  %q = bitcast double* %p to i8*
  %pp = getelementptr i8, i8* %q, i64 %i
  %r = bitcast i8* %pp to double*
  %l = load double, double* %r
  ret double %l
}

define i64 @test82(i64 %A) nounwind {
; CHECK-LABEL: @test82(
; CHECK-NEXT:    [[TMP1:%.*]] = shl i64 %A, 1
; CHECK-NEXT:    [[E:%.*]] = and i64 [[TMP1]], 4294966784
; CHECK-NEXT:    ret i64 [[E]]
;
  %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
}

; PR15959
define i64 @test83(i16 %a, i64 %k) {
; CHECK-LABEL: @test83(
; CHECK-NEXT:    [[CONV:%.*]] = sext i16 %a to i32
; CHECK-NEXT:    [[SUB:%.*]] = add i64 %k, 4294967295
; CHECK-NEXT:    [[SH_PROM:%.*]] = trunc i64 [[SUB]] to i32
; CHECK-NEXT:    [[SHL:%.*]] = shl i32 [[CONV]], [[SH_PROM]]
; CHECK-NEXT:    [[SH_PROM1:%.*]] = zext i32 [[SHL]] to i64
; CHECK-NEXT:    ret i64 [[SH_PROM1]]
;
  %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
}

define i8 @test84(i32 %a) {
; CHECK-LABEL: @test84(
; CHECK-NEXT:    [[ADD:%.*]] = add i32 %a, 2130706432
; CHECK-NEXT:    [[SHR:%.*]] = lshr exact i32 [[ADD]], 23
; CHECK-NEXT:    [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; CHECK-NEXT:    ret i8 [[TRUNC]]
;
  %add = add nsw i32 %a, -16777216
  %shr = lshr exact i32 %add, 23
  %trunc = trunc i32 %shr to i8
  ret i8 %trunc
}

define i8 @test85(i32 %a) {
; CHECK-LABEL: @test85(
; CHECK-NEXT:    [[ADD:%.*]] = add i32 %a, 2130706432
; CHECK-NEXT:    [[SHR:%.*]] = lshr exact i32 [[ADD]], 23
; CHECK-NEXT:    [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8
; CHECK-NEXT:    ret i8 [[TRUNC]]
;
  %add = add nuw i32 %a, -16777216
  %shr = lshr exact i32 %add, 23
  %trunc = trunc i32 %shr to i8
  ret i8 %trunc
}

define i16 @test86(i16 %v) {
; CHECK-LABEL: @test86(
; CHECK-NEXT:    [[S1:%.*]] = ashr i16 %v, 4
; CHECK-NEXT:    ret i16 [[S1]]
;
  %a = sext i16 %v to i32
  %s = ashr i32 %a, 4
  %t = trunc i32 %s to i16
  ret i16 %t
}

define i16 @test87(i16 %v) {
; CHECK-LABEL: @test87(
; CHECK-NEXT:    [[A1:%.*]] = ashr i16 %v, 12
; CHECK-NEXT:    ret i16 [[A1]]
;
  %c = sext i16 %v to i32
  %m = mul nsw i32 %c, 16
  %a = ashr i32 %m, 16
  %t = trunc i32 %a to i16
  ret i16 %t
}

; Do not optimize to ashr i16 (shift by 18)
define i16 @test88(i16 %v) {
; CHECK-LABEL: @test88(
; CHECK-NEXT:    [[A:%.*]] = sext i16 %v to i32
; CHECK-NEXT:    [[S:%.*]] = ashr i32 [[A]], 18
; CHECK-NEXT:    [[T:%.*]] = trunc i32 [[S]] to i16
; CHECK-NEXT:    ret i16 [[T]]
;
  %a = sext i16 %v to i32
  %s = ashr i32 %a, 18
  %t = trunc i32 %s to i16
  ret i16 %t
}

; Overflow on a float to int or int to float conversion is undefined (PR21130).

define i8 @overflow_fptosi() {
; CHECK-LABEL: @overflow_fptosi(
; CHECK-NEXT:    ret i8 undef
;
  %i = fptosi double 1.56e+02 to i8
  ret i8 %i
}

define i8 @overflow_fptoui() {
; CHECK-LABEL: @overflow_fptoui(
; CHECK-NEXT:    ret i8 undef
;
  %i = fptoui double 2.56e+02 to i8
  ret i8 %i
}

; 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() {
; CHECK-LABEL: @overflow_uitofp(
; CHECK-NEXT:    ret float undef
;
  %i = uitofp i130 400000000000000000000000000000000000000 to float
  ret float %i
}

define float @overflow_sitofp() {
; CHECK-LABEL: @overflow_sitofp(
; CHECK-NEXT:    ret float undef
;
  %i = sitofp i130 400000000000000000000000000000000000000 to float
  ret float %i
}

define i32 @PR21388(i32* %v) {
; CHECK-LABEL: @PR21388(
; CHECK-NEXT:    [[ICMP:%.*]] = icmp slt i32* %v, null
; CHECK-NEXT:    [[SEXT:%.*]] = sext i1 [[ICMP]] to i32
; CHECK-NEXT:    ret i32 [[SEXT]]
;
  %icmp = icmp slt i32* %v, null
  %sext = sext i1 %icmp to i32
  ret i32 %sext
}

define float @sitofp_zext(i16 %a) {
; CHECK-LABEL: @sitofp_zext(
; CHECK-NEXT:    [[SITOFP:%.*]] = uitofp i16 %a to float
; CHECK-NEXT:    ret float [[SITOFP]]
;
  %zext = zext i16 %a to i32
  %sitofp = sitofp i32 %zext to float
  ret float %sitofp
}

define i1 @PR23309(i32 %A, i32 %B) {
; CHECK-LABEL: @PR23309(
; CHECK-NEXT:    [[SUB:%.*]] = sub i32 %A, %B
; CHECK-NEXT:    [[TMP1:%.*]] = and i32 [[SUB]], 1
; CHECK-NEXT:    [[TRUNC:%.*]] = icmp ne i32 [[TMP1]], 0
; CHECK-NEXT:    ret i1 [[TRUNC]]
;
  %add = add i32 %A, -4
  %sub = sub nsw i32 %add, %B
  %trunc = trunc i32 %sub to i1
  ret i1 %trunc
}

define i1 @PR23309v2(i32 %A, i32 %B) {
; CHECK-LABEL: @PR23309v2(
; CHECK-NEXT:    [[SUB:%.*]] = add i32 %A, %B
; CHECK-NEXT:    [[TMP1:%.*]] = and i32 [[SUB]], 1
; CHECK-NEXT:    [[TRUNC:%.*]] = icmp ne i32 [[TMP1]], 0
; CHECK-NEXT:    ret i1 [[TRUNC]]
;
  %add = add i32 %A, -4
  %sub = add nuw i32 %add, %B
  %trunc = trunc i32 %sub to i1
  ret i1 %trunc
}

define i16 @PR24763(i8 %V) {
; CHECK-LABEL: @PR24763(
; CHECK-NEXT:    [[L:%.*]] = ashr i8 %V, 1
; CHECK-NEXT:    [[T:%.*]] = sext i8 [[L]] to i16
; CHECK-NEXT:    ret i16 [[T]]
;
  %conv = sext i8 %V to i32
  %l = lshr i32 %conv, 1
  %t = trunc i32 %l to i16
  ret i16 %t
}