nuudlman/llvm: llvm/test/Transforms/SLPVectorizer/X86/bad-reduction.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-- -mattr=avx2 | FileCheck %s

%v8i8 = type { i8, i8, i8, i8, i8, i8, i8, i8 }

; https://bugs.llvm.org/show_bug.cgi?id=43146

define i64 @load_bswap(%v8i8* %p) {
; CHECK-LABEL: @load_bswap(
; CHECK-NEXT:    [[G0:%.*]] = getelementptr inbounds [[V8I8:%.*]], %v8i8* [[P:%.*]], i64 0, i32 0
; CHECK-NEXT:    [[G1:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 1
; CHECK-NEXT:    [[G2:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 2
; CHECK-NEXT:    [[G3:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 3
; CHECK-NEXT:    [[G4:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 4
; CHECK-NEXT:    [[G5:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 5
; CHECK-NEXT:    [[G6:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 6
; CHECK-NEXT:    [[G7:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 7
; CHECK-NEXT:    [[T0:%.*]] = load i8, i8* [[G0]], align 1
; CHECK-NEXT:    [[T1:%.*]] = load i8, i8* [[G1]], align 1
; CHECK-NEXT:    [[T2:%.*]] = load i8, i8* [[G2]], align 1
; CHECK-NEXT:    [[T3:%.*]] = load i8, i8* [[G3]], align 1
; CHECK-NEXT:    [[T4:%.*]] = load i8, i8* [[G4]], align 1
; CHECK-NEXT:    [[T5:%.*]] = load i8, i8* [[G5]], align 1
; CHECK-NEXT:    [[T6:%.*]] = load i8, i8* [[G6]], align 1
; CHECK-NEXT:    [[T7:%.*]] = load i8, i8* [[G7]], align 1
; CHECK-NEXT:    [[Z0:%.*]] = zext i8 [[T0]] to i64
; CHECK-NEXT:    [[Z1:%.*]] = zext i8 [[T1]] to i64
; CHECK-NEXT:    [[Z2:%.*]] = zext i8 [[T2]] to i64
; CHECK-NEXT:    [[Z3:%.*]] = zext i8 [[T3]] to i64
; CHECK-NEXT:    [[Z4:%.*]] = zext i8 [[T4]] to i64
; CHECK-NEXT:    [[Z5:%.*]] = zext i8 [[T5]] to i64
; CHECK-NEXT:    [[Z6:%.*]] = zext i8 [[T6]] to i64
; CHECK-NEXT:    [[Z7:%.*]] = zext i8 [[T7]] to i64
; CHECK-NEXT:    [[SH0:%.*]] = shl nuw i64 [[Z0]], 56
; CHECK-NEXT:    [[SH1:%.*]] = shl nuw nsw i64 [[Z1]], 48
; CHECK-NEXT:    [[SH2:%.*]] = shl nuw nsw i64 [[Z2]], 40
; CHECK-NEXT:    [[SH3:%.*]] = shl nuw nsw i64 [[Z3]], 32
; CHECK-NEXT:    [[SH4:%.*]] = shl nuw nsw i64 [[Z4]], 24
; CHECK-NEXT:    [[SH5:%.*]] = shl nuw nsw i64 [[Z5]], 16
; CHECK-NEXT:    [[SH6:%.*]] = shl nuw nsw i64 [[Z6]], 8
; CHECK-NEXT:    [[OR01:%.*]] = or i64 [[SH0]], [[SH1]]
; CHECK-NEXT:    [[OR012:%.*]] = or i64 [[OR01]], [[SH2]]
; CHECK-NEXT:    [[OR0123:%.*]] = or i64 [[OR012]], [[SH3]]
; CHECK-NEXT:    [[OR01234:%.*]] = or i64 [[OR0123]], [[SH4]]
; CHECK-NEXT:    [[OR012345:%.*]] = or i64 [[OR01234]], [[SH5]]
; CHECK-NEXT:    [[OR0123456:%.*]] = or i64 [[OR012345]], [[SH6]]
; CHECK-NEXT:    [[OR01234567:%.*]] = or i64 [[OR0123456]], [[Z7]]
; CHECK-NEXT:    ret i64 [[OR01234567]]
;
  %g0 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 0
  %g1 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 1
  %g2 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 2
  %g3 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 3
  %g4 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 4
  %g5 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 5
  %g6 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 6
  %g7 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 7

  %t0 = load i8, i8* %g0
  %t1 = load i8, i8* %g1
  %t2 = load i8, i8* %g2
  %t3 = load i8, i8* %g3
  %t4 = load i8, i8* %g4
  %t5 = load i8, i8* %g5
  %t6 = load i8, i8* %g6
  %t7 = load i8, i8* %g7

  %z0 = zext i8 %t0 to i64
  %z1 = zext i8 %t1 to i64
  %z2 = zext i8 %t2 to i64
  %z3 = zext i8 %t3 to i64
  %z4 = zext i8 %t4 to i64
  %z5 = zext i8 %t5 to i64
  %z6 = zext i8 %t6 to i64
  %z7 = zext i8 %t7 to i64

  %sh0 = shl nuw i64 %z0, 56
  %sh1 = shl nuw nsw i64 %z1, 48
  %sh2 = shl nuw nsw i64 %z2, 40
  %sh3 = shl nuw nsw i64 %z3, 32
  %sh4 = shl nuw nsw i64 %z4, 24
  %sh5 = shl nuw nsw i64 %z5, 16
  %sh6 = shl nuw nsw i64 %z6, 8
;  %sh7 = shl nuw nsw i64 %z7, 0 <-- missing phantom shift

  %or01 = or i64 %sh0, %sh1
  %or012 = or i64 %or01, %sh2
  %or0123 = or i64 %or012, %sh3
  %or01234 = or i64 %or0123, %sh4
  %or012345 = or i64 %or01234, %sh5
  %or0123456 = or i64 %or012345, %sh6
  %or01234567 = or i64 %or0123456, %z7
  ret i64 %or01234567
}

define i64 @load_bswap_nop_shift(%v8i8* %p) {
; CHECK-LABEL: @load_bswap_nop_shift(
; CHECK-NEXT:    [[G0:%.*]] = getelementptr inbounds [[V8I8:%.*]], %v8i8* [[P:%.*]], i64 0, i32 0
; CHECK-NEXT:    [[G1:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 1
; CHECK-NEXT:    [[G2:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 2
; CHECK-NEXT:    [[G3:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 3
; CHECK-NEXT:    [[G4:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 4
; CHECK-NEXT:    [[G5:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 5
; CHECK-NEXT:    [[G6:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 6
; CHECK-NEXT:    [[G7:%.*]] = getelementptr inbounds [[V8I8]], %v8i8* [[P]], i64 0, i32 7
; CHECK-NEXT:    [[T0:%.*]] = load i8, i8* [[G0]], align 1
; CHECK-NEXT:    [[T1:%.*]] = load i8, i8* [[G1]], align 1
; CHECK-NEXT:    [[T2:%.*]] = load i8, i8* [[G2]], align 1
; CHECK-NEXT:    [[T3:%.*]] = load i8, i8* [[G3]], align 1
; CHECK-NEXT:    [[T4:%.*]] = load i8, i8* [[G4]], align 1
; CHECK-NEXT:    [[T5:%.*]] = load i8, i8* [[G5]], align 1
; CHECK-NEXT:    [[T6:%.*]] = load i8, i8* [[G6]], align 1
; CHECK-NEXT:    [[T7:%.*]] = load i8, i8* [[G7]], align 1
; CHECK-NEXT:    [[Z0:%.*]] = zext i8 [[T0]] to i64
; CHECK-NEXT:    [[Z1:%.*]] = zext i8 [[T1]] to i64
; CHECK-NEXT:    [[Z2:%.*]] = zext i8 [[T2]] to i64
; CHECK-NEXT:    [[Z3:%.*]] = zext i8 [[T3]] to i64
; CHECK-NEXT:    [[Z4:%.*]] = zext i8 [[T4]] to i64
; CHECK-NEXT:    [[Z5:%.*]] = zext i8 [[T5]] to i64
; CHECK-NEXT:    [[Z6:%.*]] = zext i8 [[T6]] to i64
; CHECK-NEXT:    [[Z7:%.*]] = zext i8 [[T7]] to i64
; CHECK-NEXT:    [[SH0:%.*]] = shl nuw i64 [[Z0]], 56
; CHECK-NEXT:    [[SH1:%.*]] = shl nuw nsw i64 [[Z1]], 48
; CHECK-NEXT:    [[SH2:%.*]] = shl nuw nsw i64 [[Z2]], 40
; CHECK-NEXT:    [[SH3:%.*]] = shl nuw nsw i64 [[Z3]], 32
; CHECK-NEXT:    [[SH4:%.*]] = shl nuw nsw i64 [[Z4]], 24
; CHECK-NEXT:    [[SH5:%.*]] = shl nuw nsw i64 [[Z5]], 16
; CHECK-NEXT:    [[SH6:%.*]] = shl nuw nsw i64 [[Z6]], 8
; CHECK-NEXT:    [[SH7:%.*]] = shl nuw nsw i64 [[Z7]], 0
; CHECK-NEXT:    [[OR01:%.*]] = or i64 [[SH0]], [[SH1]]
; CHECK-NEXT:    [[OR012:%.*]] = or i64 [[OR01]], [[SH2]]
; CHECK-NEXT:    [[OR0123:%.*]] = or i64 [[OR012]], [[SH3]]
; CHECK-NEXT:    [[OR01234:%.*]] = or i64 [[OR0123]], [[SH4]]
; CHECK-NEXT:    [[OR012345:%.*]] = or i64 [[OR01234]], [[SH5]]
; CHECK-NEXT:    [[OR0123456:%.*]] = or i64 [[OR012345]], [[SH6]]
; CHECK-NEXT:    [[OR01234567:%.*]] = or i64 [[OR0123456]], [[SH7]]
; CHECK-NEXT:    ret i64 [[OR01234567]]
;
  %g0 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 0
  %g1 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 1
  %g2 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 2
  %g3 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 3
  %g4 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 4
  %g5 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 5
  %g6 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 6
  %g7 = getelementptr inbounds %v8i8, %v8i8* %p, i64 0, i32 7

  %t0 = load i8, i8* %g0
  %t1 = load i8, i8* %g1
  %t2 = load i8, i8* %g2
  %t3 = load i8, i8* %g3
  %t4 = load i8, i8* %g4
  %t5 = load i8, i8* %g5
  %t6 = load i8, i8* %g6
  %t7 = load i8, i8* %g7

  %z0 = zext i8 %t0 to i64
  %z1 = zext i8 %t1 to i64
  %z2 = zext i8 %t2 to i64
  %z3 = zext i8 %t3 to i64
  %z4 = zext i8 %t4 to i64
  %z5 = zext i8 %t5 to i64
  %z6 = zext i8 %t6 to i64
  %z7 = zext i8 %t7 to i64

  %sh0 = shl nuw i64 %z0, 56
  %sh1 = shl nuw nsw i64 %z1, 48
  %sh2 = shl nuw nsw i64 %z2, 40
  %sh3 = shl nuw nsw i64 %z3, 32
  %sh4 = shl nuw nsw i64 %z4, 24
  %sh5 = shl nuw nsw i64 %z5, 16
  %sh6 = shl nuw nsw i64 %z6, 8
  %sh7 = shl nuw nsw i64 %z7, 0

  %or01 = or i64 %sh0, %sh1
  %or012 = or i64 %or01, %sh2
  %or0123 = or i64 %or012, %sh3
  %or01234 = or i64 %or0123, %sh4
  %or012345 = or i64 %or01234, %sh5
  %or0123456 = or i64 %or012345, %sh6
  %or01234567 = or i64 %or0123456, %sh7
  ret i64 %or01234567
}

; https://bugs.llvm.org/show_bug.cgi?id=42708

define i64 @load64le(i8* %arg) {
; CHECK-LABEL: @load64le(
; CHECK-NEXT:    [[G1:%.*]] = getelementptr inbounds i8, i8* [[ARG:%.*]], i64 1
; CHECK-NEXT:    [[G2:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 2
; CHECK-NEXT:    [[G3:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 3
; CHECK-NEXT:    [[G4:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 4
; CHECK-NEXT:    [[G5:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 5
; CHECK-NEXT:    [[G6:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 6
; CHECK-NEXT:    [[G7:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 7
; CHECK-NEXT:    [[LD0:%.*]] = load i8, i8* [[ARG]], align 1
; CHECK-NEXT:    [[LD1:%.*]] = load i8, i8* [[G1]], align 1
; CHECK-NEXT:    [[LD2:%.*]] = load i8, i8* [[G2]], align 1
; CHECK-NEXT:    [[LD3:%.*]] = load i8, i8* [[G3]], align 1
; CHECK-NEXT:    [[LD4:%.*]] = load i8, i8* [[G4]], align 1
; CHECK-NEXT:    [[LD5:%.*]] = load i8, i8* [[G5]], align 1
; CHECK-NEXT:    [[LD6:%.*]] = load i8, i8* [[G6]], align 1
; CHECK-NEXT:    [[LD7:%.*]] = load i8, i8* [[G7]], align 1
; CHECK-NEXT:    [[Z0:%.*]] = zext i8 [[LD0]] to i64
; CHECK-NEXT:    [[Z1:%.*]] = zext i8 [[LD1]] to i64
; CHECK-NEXT:    [[Z2:%.*]] = zext i8 [[LD2]] to i64
; CHECK-NEXT:    [[Z3:%.*]] = zext i8 [[LD3]] to i64
; CHECK-NEXT:    [[Z4:%.*]] = zext i8 [[LD4]] to i64
; CHECK-NEXT:    [[Z5:%.*]] = zext i8 [[LD5]] to i64
; CHECK-NEXT:    [[Z6:%.*]] = zext i8 [[LD6]] to i64
; CHECK-NEXT:    [[Z7:%.*]] = zext i8 [[LD7]] to i64
; CHECK-NEXT:    [[S1:%.*]] = shl nuw nsw i64 [[Z1]], 8
; CHECK-NEXT:    [[S2:%.*]] = shl nuw nsw i64 [[Z2]], 16
; CHECK-NEXT:    [[S3:%.*]] = shl nuw nsw i64 [[Z3]], 24
; CHECK-NEXT:    [[S4:%.*]] = shl nuw nsw i64 [[Z4]], 32
; CHECK-NEXT:    [[S5:%.*]] = shl nuw nsw i64 [[Z5]], 40
; CHECK-NEXT:    [[S6:%.*]] = shl nuw nsw i64 [[Z6]], 48
; CHECK-NEXT:    [[S7:%.*]] = shl nuw i64 [[Z7]], 56
; CHECK-NEXT:    [[O1:%.*]] = or i64 [[S1]], [[Z0]]
; CHECK-NEXT:    [[O2:%.*]] = or i64 [[O1]], [[S2]]
; CHECK-NEXT:    [[O3:%.*]] = or i64 [[O2]], [[S3]]
; CHECK-NEXT:    [[O4:%.*]] = or i64 [[O3]], [[S4]]
; CHECK-NEXT:    [[O5:%.*]] = or i64 [[O4]], [[S5]]
; CHECK-NEXT:    [[O6:%.*]] = or i64 [[O5]], [[S6]]
; CHECK-NEXT:    [[O7:%.*]] = or i64 [[O6]], [[S7]]
; CHECK-NEXT:    ret i64 [[O7]]
;
  %g1 = getelementptr inbounds i8, i8* %arg, i64 1
  %g2 = getelementptr inbounds i8, i8* %arg, i64 2
  %g3 = getelementptr inbounds i8, i8* %arg, i64 3
  %g4 = getelementptr inbounds i8, i8* %arg, i64 4
  %g5 = getelementptr inbounds i8, i8* %arg, i64 5
  %g6 = getelementptr inbounds i8, i8* %arg, i64 6
  %g7 = getelementptr inbounds i8, i8* %arg, i64 7

  %ld0 = load i8, i8* %arg, align 1
  %ld1 = load i8, i8* %g1, align 1
  %ld2 = load i8, i8* %g2, align 1
  %ld3 = load i8, i8* %g3, align 1
  %ld4 = load i8, i8* %g4, align 1
  %ld5 = load i8, i8* %g5, align 1
  %ld6 = load i8, i8* %g6, align 1
  %ld7 = load i8, i8* %g7, align 1

  %z0 = zext i8 %ld0 to i64
  %z1 = zext i8 %ld1 to i64
  %z2 = zext i8 %ld2 to i64
  %z3 = zext i8 %ld3 to i64
  %z4 = zext i8 %ld4 to i64
  %z5 = zext i8 %ld5 to i64
  %z6 = zext i8 %ld6 to i64
  %z7 = zext i8 %ld7 to i64

;  %s0 = shl nuw nsw i64 %z0, 0 <-- missing phantom shift
  %s1 = shl nuw nsw i64 %z1, 8
  %s2 = shl nuw nsw i64 %z2, 16
  %s3 = shl nuw nsw i64 %z3, 24
  %s4 = shl nuw nsw i64 %z4, 32
  %s5 = shl nuw nsw i64 %z5, 40
  %s6 = shl nuw nsw i64 %z6, 48
  %s7 = shl nuw i64 %z7, 56

  %o1 = or i64 %s1, %z0
  %o2 = or i64 %o1, %s2
  %o3 = or i64 %o2, %s3
  %o4 = or i64 %o3, %s4
  %o5 = or i64 %o4, %s5
  %o6 = or i64 %o5, %s6
  %o7 = or i64 %o6, %s7
  ret i64 %o7
}

define i64 @load64le_nop_shift(i8* %arg) {
; CHECK-LABEL: @load64le_nop_shift(
; CHECK-NEXT:    [[G1:%.*]] = getelementptr inbounds i8, i8* [[ARG:%.*]], i64 1
; CHECK-NEXT:    [[G2:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 2
; CHECK-NEXT:    [[G3:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 3
; CHECK-NEXT:    [[G4:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 4
; CHECK-NEXT:    [[G5:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 5
; CHECK-NEXT:    [[G6:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 6
; CHECK-NEXT:    [[G7:%.*]] = getelementptr inbounds i8, i8* [[ARG]], i64 7
; CHECK-NEXT:    [[LD0:%.*]] = load i8, i8* [[ARG]], align 1
; CHECK-NEXT:    [[LD1:%.*]] = load i8, i8* [[G1]], align 1
; CHECK-NEXT:    [[LD2:%.*]] = load i8, i8* [[G2]], align 1
; CHECK-NEXT:    [[LD3:%.*]] = load i8, i8* [[G3]], align 1
; CHECK-NEXT:    [[LD4:%.*]] = load i8, i8* [[G4]], align 1
; CHECK-NEXT:    [[LD5:%.*]] = load i8, i8* [[G5]], align 1
; CHECK-NEXT:    [[LD6:%.*]] = load i8, i8* [[G6]], align 1
; CHECK-NEXT:    [[LD7:%.*]] = load i8, i8* [[G7]], align 1
; CHECK-NEXT:    [[Z0:%.*]] = zext i8 [[LD0]] to i64
; CHECK-NEXT:    [[Z1:%.*]] = zext i8 [[LD1]] to i64
; CHECK-NEXT:    [[Z2:%.*]] = zext i8 [[LD2]] to i64
; CHECK-NEXT:    [[Z3:%.*]] = zext i8 [[LD3]] to i64
; CHECK-NEXT:    [[Z4:%.*]] = zext i8 [[LD4]] to i64
; CHECK-NEXT:    [[Z5:%.*]] = zext i8 [[LD5]] to i64
; CHECK-NEXT:    [[Z6:%.*]] = zext i8 [[LD6]] to i64
; CHECK-NEXT:    [[Z7:%.*]] = zext i8 [[LD7]] to i64
; CHECK-NEXT:    [[S0:%.*]] = shl nuw nsw i64 [[Z0]], 0
; CHECK-NEXT:    [[S1:%.*]] = shl nuw nsw i64 [[Z1]], 8
; CHECK-NEXT:    [[S2:%.*]] = shl nuw nsw i64 [[Z2]], 16
; CHECK-NEXT:    [[S3:%.*]] = shl nuw nsw i64 [[Z3]], 24
; CHECK-NEXT:    [[S4:%.*]] = shl nuw nsw i64 [[Z4]], 32
; CHECK-NEXT:    [[S5:%.*]] = shl nuw nsw i64 [[Z5]], 40
; CHECK-NEXT:    [[S6:%.*]] = shl nuw nsw i64 [[Z6]], 48
; CHECK-NEXT:    [[S7:%.*]] = shl nuw i64 [[Z7]], 56
; CHECK-NEXT:    [[O1:%.*]] = or i64 [[S1]], [[S0]]
; CHECK-NEXT:    [[O2:%.*]] = or i64 [[O1]], [[S2]]
; CHECK-NEXT:    [[O3:%.*]] = or i64 [[O2]], [[S3]]
; CHECK-NEXT:    [[O4:%.*]] = or i64 [[O3]], [[S4]]
; CHECK-NEXT:    [[O5:%.*]] = or i64 [[O4]], [[S5]]
; CHECK-NEXT:    [[O6:%.*]] = or i64 [[O5]], [[S6]]
; CHECK-NEXT:    [[O7:%.*]] = or i64 [[O6]], [[S7]]
; CHECK-NEXT:    ret i64 [[O7]]
;
  %g1 = getelementptr inbounds i8, i8* %arg, i64 1
  %g2 = getelementptr inbounds i8, i8* %arg, i64 2
  %g3 = getelementptr inbounds i8, i8* %arg, i64 3
  %g4 = getelementptr inbounds i8, i8* %arg, i64 4
  %g5 = getelementptr inbounds i8, i8* %arg, i64 5
  %g6 = getelementptr inbounds i8, i8* %arg, i64 6
  %g7 = getelementptr inbounds i8, i8* %arg, i64 7

  %ld0 = load i8, i8* %arg, align 1
  %ld1 = load i8, i8* %g1, align 1
  %ld2 = load i8, i8* %g2, align 1
  %ld3 = load i8, i8* %g3, align 1
  %ld4 = load i8, i8* %g4, align 1
  %ld5 = load i8, i8* %g5, align 1
  %ld6 = load i8, i8* %g6, align 1
  %ld7 = load i8, i8* %g7, align 1

  %z0 = zext i8 %ld0 to i64
  %z1 = zext i8 %ld1 to i64
  %z2 = zext i8 %ld2 to i64
  %z3 = zext i8 %ld3 to i64
  %z4 = zext i8 %ld4 to i64
  %z5 = zext i8 %ld5 to i64
  %z6 = zext i8 %ld6 to i64
  %z7 = zext i8 %ld7 to i64

  %s0 = shl nuw nsw i64 %z0, 0
  %s1 = shl nuw nsw i64 %z1, 8
  %s2 = shl nuw nsw i64 %z2, 16
  %s3 = shl nuw nsw i64 %z3, 24
  %s4 = shl nuw nsw i64 %z4, 32
  %s5 = shl nuw nsw i64 %z5, 40
  %s6 = shl nuw nsw i64 %z6, 48
  %s7 = shl nuw i64 %z7, 56

  %o1 = or i64 %s1, %s0
  %o2 = or i64 %o1, %s2
  %o3 = or i64 %o2, %s3
  %o4 = or i64 %o3, %s4
  %o5 = or i64 %o4, %s5
  %o6 = or i64 %o5, %s6
  %o7 = or i64 %o6, %s7
  ret i64 %o7
}

define void @PR39538(i8* %t0, i32* %t1) {
; CHECK-LABEL: @PR39538(
; CHECK-NEXT:    [[T6:%.*]] = getelementptr inbounds i8, i8* [[T0:%.*]], i64 1
; CHECK-NEXT:    [[T11:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 2
; CHECK-NEXT:    [[T16:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 3
; CHECK-NEXT:    [[T20:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 4
; CHECK-NEXT:    [[T24:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 5
; CHECK-NEXT:    [[T29:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 6
; CHECK-NEXT:    [[T34:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 7
; CHECK-NEXT:    [[T39:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 8
; CHECK-NEXT:    [[T43:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 9
; CHECK-NEXT:    [[T48:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 10
; CHECK-NEXT:    [[T53:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 11
; CHECK-NEXT:    [[T58:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 12
; CHECK-NEXT:    [[T62:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 13
; CHECK-NEXT:    [[T67:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 14
; CHECK-NEXT:    [[T72:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 15
; CHECK-NEXT:    [[T38:%.*]] = getelementptr inbounds i32, i32* [[T1:%.*]], i64 1
; CHECK-NEXT:    [[T57:%.*]] = getelementptr inbounds i32, i32* [[T1]], i64 2
; CHECK-NEXT:    [[T76:%.*]] = getelementptr inbounds i32, i32* [[T1]], i64 3
; CHECK-NEXT:    [[T3:%.*]] = load i8, i8* [[T0]], align 1
; CHECK-NEXT:    [[T7:%.*]] = load i8, i8* [[T6]], align 1
; CHECK-NEXT:    [[T12:%.*]] = load i8, i8* [[T11]], align 1
; CHECK-NEXT:    [[T17:%.*]] = load i8, i8* [[T16]], align 1
; CHECK-NEXT:    [[T21:%.*]] = load i8, i8* [[T20]], align 1
; CHECK-NEXT:    [[T25:%.*]] = load i8, i8* [[T24]], align 1
; CHECK-NEXT:    [[T30:%.*]] = load i8, i8* [[T29]], align 1
; CHECK-NEXT:    [[T35:%.*]] = load i8, i8* [[T34]], align 1
; CHECK-NEXT:    [[T40:%.*]] = load i8, i8* [[T39]], align 1
; CHECK-NEXT:    [[T44:%.*]] = load i8, i8* [[T43]], align 1
; CHECK-NEXT:    [[T49:%.*]] = load i8, i8* [[T48]], align 1
; CHECK-NEXT:    [[T54:%.*]] = load i8, i8* [[T53]], align 1
; CHECK-NEXT:    [[T59:%.*]] = load i8, i8* [[T58]], align 1
; CHECK-NEXT:    [[T63:%.*]] = load i8, i8* [[T62]], align 1
; CHECK-NEXT:    [[T68:%.*]] = load i8, i8* [[T67]], align 1
; CHECK-NEXT:    [[T73:%.*]] = load i8, i8* [[T72]], align 1
; CHECK-NEXT:    [[T4:%.*]] = zext i8 [[T3]] to i32
; CHECK-NEXT:    [[T8:%.*]] = zext i8 [[T7]] to i32
; CHECK-NEXT:    [[T13:%.*]] = zext i8 [[T12]] to i32
; CHECK-NEXT:    [[T18:%.*]] = zext i8 [[T17]] to i32
; CHECK-NEXT:    [[T22:%.*]] = zext i8 [[T21]] to i32
; CHECK-NEXT:    [[T26:%.*]] = zext i8 [[T25]] to i32
; CHECK-NEXT:    [[T31:%.*]] = zext i8 [[T30]] to i32
; CHECK-NEXT:    [[T36:%.*]] = zext i8 [[T35]] to i32
; CHECK-NEXT:    [[T41:%.*]] = zext i8 [[T40]] to i32
; CHECK-NEXT:    [[T45:%.*]] = zext i8 [[T44]] to i32
; CHECK-NEXT:    [[T50:%.*]] = zext i8 [[T49]] to i32
; CHECK-NEXT:    [[T55:%.*]] = zext i8 [[T54]] to i32
; CHECK-NEXT:    [[T60:%.*]] = zext i8 [[T59]] to i32
; CHECK-NEXT:    [[T64:%.*]] = zext i8 [[T63]] to i32
; CHECK-NEXT:    [[T69:%.*]] = zext i8 [[T68]] to i32
; CHECK-NEXT:    [[T74:%.*]] = zext i8 [[T73]] to i32
; CHECK-NEXT:    [[T5:%.*]] = shl nuw i32 [[T4]], 24
; CHECK-NEXT:    [[T23:%.*]] = shl nuw i32 [[T22]], 24
; CHECK-NEXT:    [[T42:%.*]] = shl nuw i32 [[T41]], 24
; CHECK-NEXT:    [[T61:%.*]] = shl nuw i32 [[T60]], 24
; CHECK-NEXT:    [[T9:%.*]] = shl nuw nsw i32 [[T8]], 16
; CHECK-NEXT:    [[T27:%.*]] = shl nuw nsw i32 [[T26]], 16
; CHECK-NEXT:    [[T46:%.*]] = shl nuw nsw i32 [[T45]], 16
; CHECK-NEXT:    [[T65:%.*]] = shl nuw nsw i32 [[T64]], 16
; CHECK-NEXT:    [[T14:%.*]] = shl nuw nsw i32 [[T13]], 8
; CHECK-NEXT:    [[T32:%.*]] = shl nuw nsw i32 [[T31]], 8
; CHECK-NEXT:    [[T51:%.*]] = shl nuw nsw i32 [[T50]], 8
; CHECK-NEXT:    [[T70:%.*]] = shl nuw nsw i32 [[T69]], 8
; CHECK-NEXT:    [[T10:%.*]] = or i32 [[T9]], [[T5]]
; CHECK-NEXT:    [[T15:%.*]] = or i32 [[T10]], [[T14]]
; CHECK-NEXT:    [[T19:%.*]] = or i32 [[T15]], [[T18]]
; CHECK-NEXT:    [[T28:%.*]] = or i32 [[T27]], [[T23]]
; CHECK-NEXT:    [[T33:%.*]] = or i32 [[T28]], [[T32]]
; CHECK-NEXT:    [[T37:%.*]] = or i32 [[T33]], [[T36]]
; CHECK-NEXT:    [[T47:%.*]] = or i32 [[T46]], [[T42]]
; CHECK-NEXT:    [[T52:%.*]] = or i32 [[T47]], [[T51]]
; CHECK-NEXT:    [[T56:%.*]] = or i32 [[T52]], [[T55]]
; CHECK-NEXT:    [[T66:%.*]] = or i32 [[T65]], [[T61]]
; CHECK-NEXT:    [[T71:%.*]] = or i32 [[T66]], [[T70]]
; CHECK-NEXT:    [[T75:%.*]] = or i32 [[T71]], [[T74]]
; CHECK-NEXT:    store i32 [[T19]], i32* [[T1]], align 4
; CHECK-NEXT:    store i32 [[T37]], i32* [[T38]], align 4
; CHECK-NEXT:    store i32 [[T56]], i32* [[T57]], align 4
; CHECK-NEXT:    store i32 [[T75]], i32* [[T76]], align 4
; CHECK-NEXT:    ret void
;
  %t6 = getelementptr inbounds i8, i8* %t0, i64 1
  %t11 = getelementptr inbounds i8, i8* %t0, i64 2
  %t16 = getelementptr inbounds i8, i8* %t0, i64 3
  %t20 = getelementptr inbounds i8, i8* %t0, i64 4
  %t24 = getelementptr inbounds i8, i8* %t0, i64 5
  %t29 = getelementptr inbounds i8, i8* %t0, i64 6
  %t34 = getelementptr inbounds i8, i8* %t0, i64 7
  %t39 = getelementptr inbounds i8, i8* %t0, i64 8
  %t43 = getelementptr inbounds i8, i8* %t0, i64 9
  %t48 = getelementptr inbounds i8, i8* %t0, i64 10
  %t53 = getelementptr inbounds i8, i8* %t0, i64 11
  %t58 = getelementptr inbounds i8, i8* %t0, i64 12
  %t62 = getelementptr inbounds i8, i8* %t0, i64 13
  %t67 = getelementptr inbounds i8, i8* %t0, i64 14
  %t72 = getelementptr inbounds i8, i8* %t0, i64 15
  %t38 = getelementptr inbounds i32, i32* %t1, i64 1
  %t57 = getelementptr inbounds i32, i32* %t1, i64 2
  %t76 = getelementptr inbounds i32, i32* %t1, i64 3
  %t3 = load i8, i8* %t0, align 1
  %t7 = load i8, i8* %t6, align 1
  %t12 = load i8, i8* %t11, align 1
  %t17 = load i8, i8* %t16, align 1
  %t21 = load i8, i8* %t20, align 1
  %t25 = load i8, i8* %t24, align 1
  %t30 = load i8, i8* %t29, align 1
  %t35 = load i8, i8* %t34, align 1
  %t40 = load i8, i8* %t39, align 1
  %t44 = load i8, i8* %t43, align 1
  %t49 = load i8, i8* %t48, align 1
  %t54 = load i8, i8* %t53, align 1
  %t59 = load i8, i8* %t58, align 1
  %t63 = load i8, i8* %t62, align 1
  %t68 = load i8, i8* %t67, align 1
  %t73 = load i8, i8* %t72, align 1
  %t4 = zext i8 %t3 to i32
  %t8 = zext i8 %t7 to i32
  %t13 = zext i8 %t12 to i32
  %t18 = zext i8 %t17 to i32
  %t22 = zext i8 %t21 to i32
  %t26 = zext i8 %t25 to i32
  %t31 = zext i8 %t30 to i32
  %t36 = zext i8 %t35 to i32
  %t41 = zext i8 %t40 to i32
  %t45 = zext i8 %t44 to i32
  %t50 = zext i8 %t49 to i32
  %t55 = zext i8 %t54 to i32
  %t60 = zext i8 %t59 to i32
  %t64 = zext i8 %t63 to i32
  %t69 = zext i8 %t68 to i32
  %t74 = zext i8 %t73 to i32
  %t5 = shl nuw i32 %t4, 24
  %t23 = shl nuw i32 %t22, 24
  %t42 = shl nuw i32 %t41, 24
  %t61 = shl nuw i32 %t60, 24
  %t9 = shl nuw nsw i32 %t8, 16
  %t27 = shl nuw nsw i32 %t26, 16
  %t46 = shl nuw nsw i32 %t45, 16
  %t65 = shl nuw nsw i32 %t64, 16
  %t14 = shl nuw nsw i32 %t13, 8
  %t32 = shl nuw nsw i32 %t31, 8
  %t51 = shl nuw nsw i32 %t50, 8
  %t70 = shl nuw nsw i32 %t69, 8
  %t10 = or i32 %t9, %t5
  %t15 = or i32 %t10, %t14
  %t19 = or i32 %t15, %t18
  %t28 = or i32 %t27, %t23
  %t33 = or i32 %t28, %t32
  %t37 = or i32 %t33, %t36
  %t47 = or i32 %t46, %t42
  %t52 = or i32 %t47, %t51
  %t56 = or i32 %t52, %t55
  %t66 = or i32 %t65, %t61
  %t71 = or i32 %t66, %t70
  %t75 = or i32 %t71, %t74
  store i32 %t19, i32* %t1, align 4
  store i32 %t37, i32* %t38, align 4
  store i32 %t56, i32* %t57, align 4
  store i32 %t75, i32* %t76, align 4
  ret void
}

; Do not crash on constant expressions.

@g1 = external dso_local unnamed_addr constant [8 x i8], align 1
@g2 = external dso_local unnamed_addr constant [5 x i8], align 1

define void @load_combine_constant_expression(i64* %t1) {
; CHECK-LABEL: @load_combine_constant_expression(
; CHECK-NEXT:    store i64 or (i64 shl (i64 zext (i32 ptrtoint ([8 x i8]* @g1 to i32) to i64), i64 32), i64 zext (i32 ptrtoint ([5 x i8]* @g2 to i32) to i64)), i64* [[T1:%.*]], align 4
; CHECK-NEXT:    [[T3:%.*]] = getelementptr i64, i64* [[T1]], i64 1
; CHECK-NEXT:    store i64 or (i64 shl (i64 zext (i32 ptrtoint ([8 x i8]* @g1 to i32) to i64), i64 32), i64 zext (i32 ptrtoint ([5 x i8]* @g2 to i32) to i64)), i64* [[T3]], align 4
; CHECK-NEXT:    ret void
;
  store i64 or (i64 shl (i64 zext (i32 ptrtoint ([8 x i8]* @g1 to i32) to i64), i64 32), i64 zext (i32 ptrtoint ([5 x i8]* @g2 to i32) to i64)), i64* %t1, align 4
  %t3 = getelementptr i64, i64* %t1, i64 1
  store i64 or (i64 shl (i64 zext (i32 ptrtoint ([8 x i8]* @g1 to i32) to i64), i64 32), i64 zext (i32 ptrtoint ([5 x i8]* @g2 to i32) to i64)), i64* %t3, align 4
  ret void
}

@output = dso_local local_unnamed_addr global [8 x i32] zeroinitializer, align 16

define void @PR47450(i16* nocapture readonly %p) {
; CHECK-LABEL: @PR47450(
; CHECK-NEXT:    [[X:%.*]] = load i16, i16* [[P:%.*]], align 2
; CHECK-NEXT:    [[Z:%.*]] = zext i16 [[X]] to i32
; CHECK-NEXT:    [[S:%.*]] = shl nuw nsw i32 [[Z]], 1
; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <4 x i32> poison, i32 [[S]], i32 0
; CHECK-NEXT:    [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> zeroinitializer
; CHECK-NEXT:    store <4 x i32> [[SHUFFLE]], <4 x i32>* bitcast ([8 x i32]* @output to <4 x i32>*), align 16
; CHECK-NEXT:    ret void
;
  %x = load i16, i16* %p, align 2
  %z = zext i16 %x to i32
  %s = shl nuw nsw i32 %z, 1
  store i32 %s, i32* getelementptr inbounds ([8 x i32], [8 x i32]* @output, i64 0, i64 0), align 16
  store i32 %s, i32* getelementptr inbounds ([8 x i32], [8 x i32]* @output, i64 0, i64 1), align 4
  store i32 %s, i32* getelementptr inbounds ([8 x i32], [8 x i32]* @output, i64 0, i64 2), align 8
  store i32 %s, i32* getelementptr inbounds ([8 x i32], [8 x i32]* @output, i64 0, i64 3), align 4
  ret void
}