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llvm/llvm/test/Transforms/AlignmentFromAssumptions/alignment-from-assumptions-track-users.ll 

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -passes=alignment-from-assumptions -S | FileCheck %s

define void @widget(ptr addrspace(1) nocapture readonly %arg, ptr addrspace(3) nocapture %arg1) {
; CHECK-LABEL: define void @widget(
; CHECK-SAME: ptr addrspace(1) nocapture readonly [[ARG:%.*]], ptr addrspace(3) nocapture [[ARG1:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[GETELEMENTPTR:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[ARG]], i64 1
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) [[GETELEMENTPTR]], i64 4) ]
; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr addrspace(1) [[GETELEMENTPTR]], align 4
; CHECK-NEXT:    [[GETELEMENTPTR2:%.*]] = getelementptr inbounds i32, ptr addrspace(3) [[ARG1]], i32 1
; CHECK-NEXT:    store i32 [[LOAD]], ptr addrspace(3) [[GETELEMENTPTR2]], align 4
; CHECK-NEXT:    ret void
;
bb:
  %getelementptr = getelementptr inbounds i32, ptr addrspace(1) %arg, i64 1
  call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) %getelementptr, i64 4) ]
  %load = load i32, ptr addrspace(1) %getelementptr, align 2
  %getelementptr2 = getelementptr inbounds i32, ptr addrspace(3) %arg1, i32 1
  store i32 %load, ptr addrspace(3) %getelementptr2, align 4
  ret void
}

define void @wibble(ptr addrspace(1) nocapture readonly %arg, i32 %arg2, ptr addrspace(3) nocapture %arg3) {
; CHECK-LABEL: define void @wibble(
; CHECK-SAME: ptr addrspace(1) nocapture readonly [[ARG:%.*]], i32 [[ARG2:%.*]], ptr addrspace(3) nocapture [[ARG3:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[ICMP:%.*]] = icmp ugt i32 [[ARG2]], 10
; CHECK-NEXT:    br i1 [[ICMP]], label [[BB4:%.*]], label [[BB5:%.*]]
; CHECK:       bb4:
; CHECK-NEXT:    [[GETELEMENTPTR:%.*]] = getelementptr i32, ptr addrspace(1) [[ARG]], i32 6
; CHECK-NEXT:    br label [[BB7:%.*]]
; CHECK:       bb5:
; CHECK-NEXT:    [[GETELEMENTPTR6:%.*]] = getelementptr i32, ptr addrspace(1) [[ARG]], i32 7
; CHECK-NEXT:    br label [[BB7]]
; CHECK:       bb7:
; CHECK-NEXT:    [[PHI:%.*]] = phi ptr addrspace(1) [ [[GETELEMENTPTR]], [[BB4]] ], [ [[GETELEMENTPTR6]], [[BB5]] ]
; CHECK-NEXT:    [[GETELEMENTPTR8:%.*]] = getelementptr inbounds i32, ptr addrspace(1) [[PHI]], i64 4
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) [[ARG]], i64 4) ]
; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr addrspace(1) [[GETELEMENTPTR8]], align 2
; CHECK-NEXT:    [[GETELEMENTPTR9:%.*]] = getelementptr inbounds i32, ptr addrspace(3) [[ARG3]], i32 1
; CHECK-NEXT:    store i32 [[LOAD]], ptr addrspace(3) [[GETELEMENTPTR9]], align 4
; CHECK-NEXT:    ret void
;
bb:
  %icmp = icmp ugt i32 %arg2, 10
  br i1 %icmp, label %bb4, label %bb5

bb4:                                              ; preds = %bb
  %getelementptr = getelementptr i32, ptr addrspace(1) %arg, i32 6
  br label %bb7

bb5:                                              ; preds = %bb
  %getelementptr6 = getelementptr i32, ptr addrspace(1) %arg, i32 7
  br label %bb7

bb7:                                              ; preds = %bb5, %bb4
  %phi = phi ptr addrspace(1) [ %getelementptr, %bb4 ], [ %getelementptr6, %bb5 ]
  %getelementptr8 = getelementptr inbounds i32, ptr addrspace(1) %phi, i64 4
  call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) %arg, i64 4) ]
  %load = load i32, ptr addrspace(1) %getelementptr8, align 2
  %getelementptr9 = getelementptr inbounds i32, ptr addrspace(3) %arg3, i32 1
  store i32 %load, ptr addrspace(3) %getelementptr9, align 4
  ret void
}

define void @ham(ptr addrspace(1) nocapture readonly %arg, i32 %arg2, ptr addrspace(3) nocapture %arg3) {
; CHECK-LABEL: define void @ham(
; CHECK-SAME: ptr addrspace(1) nocapture readonly [[ARG:%.*]], i32 [[ARG2:%.*]], ptr addrspace(3) nocapture [[ARG3:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[GETELEMENTPTR:%.*]] = getelementptr i32, ptr addrspace(1) [[ARG]], i32 0
; CHECK-NEXT:    [[GETELEMENTPTR4:%.*]] = getelementptr i32, ptr addrspace(1) [[ARG]], i32 10
; CHECK-NEXT:    [[ICMP:%.*]] = icmp ugt i32 [[ARG2]], 10
; CHECK-NEXT:    br i1 [[ICMP]], label [[BB5:%.*]], label [[BB10:%.*]]
; CHECK:       bb5:
; CHECK-NEXT:    [[PHI:%.*]] = phi ptr addrspace(1) [ [[GETELEMENTPTR]], [[BB:%.*]] ], [ [[GETELEMENTPTR8:%.*]], [[BB5]] ]
; CHECK-NEXT:    [[PHI6:%.*]] = phi i32 [ 0, [[BB]] ], [ [[ADD:%.*]], [[BB5]] ]
; CHECK-NEXT:    [[GETELEMENTPTR7:%.*]] = getelementptr i32, ptr addrspace(1) [[PHI]], i32 4
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) [[ARG]], i64 4) ]
; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr addrspace(1) [[GETELEMENTPTR7]], align 4
; CHECK-NEXT:    [[ADD]] = add i32 [[PHI6]], [[LOAD]]
; CHECK-NEXT:    [[GETELEMENTPTR8]] = getelementptr i32, ptr addrspace(1) [[PHI]], i32 [[ARG2]]
; CHECK-NEXT:    [[ICMP9:%.*]] = icmp eq ptr addrspace(1) [[GETELEMENTPTR8]], [[GETELEMENTPTR4]]
; CHECK-NEXT:    br i1 [[ICMP9]], label [[BB5]], label [[BB10]]
; CHECK:       bb10:
; CHECK-NEXT:    [[PHI11:%.*]] = phi i32 [ 0, [[BB]] ], [ [[ADD]], [[BB5]] ]
; CHECK-NEXT:    [[GETELEMENTPTR12:%.*]] = getelementptr inbounds i32, ptr addrspace(3) [[ARG3]], i32 1
; CHECK-NEXT:    store i32 [[PHI11]], ptr addrspace(3) [[GETELEMENTPTR12]], align 4
; CHECK-NEXT:    ret void
;
bb:
  %getelementptr = getelementptr i32, ptr addrspace(1) %arg, i32 0
  %getelementptr4 = getelementptr i32, ptr addrspace(1) %arg, i32 10
  %icmp = icmp ugt i32 %arg2, 10
  br i1 %icmp, label %bb5, label %bb10

bb5:                                              ; preds = %bb5, %bb
  %phi = phi ptr addrspace(1) [ %getelementptr, %bb ], [ %getelementptr8, %bb5 ]
  %phi6 = phi i32 [ 0, %bb ], [ %add, %bb5 ]
  %getelementptr7 = getelementptr i32, ptr addrspace(1) %phi, i32 4
  call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) %arg, i64 4) ]
  %load = load i32, ptr addrspace(1) %getelementptr7, align 2
  %add = add i32 %phi6, %load
  %getelementptr8 = getelementptr i32, ptr addrspace(1) %phi, i32 %arg2
  %icmp9 = icmp eq ptr addrspace(1) %getelementptr8, %getelementptr4
  br i1 %icmp9, label %bb5, label %bb10

bb10:                                             ; preds = %bb5, %bb
  %phi11 = phi i32 [ 0, %bb ], [ %add, %bb5 ]
  %getelementptr12 = getelementptr inbounds i32, ptr addrspace(3) %arg3, i32 1
  store i32 %phi11, ptr addrspace(3) %getelementptr12, align 4
  ret void
}

define void @quux(ptr addrspace(1) nocapture readonly %arg, i32 %arg2, ptr addrspace(3) nocapture %arg3) {
; CHECK-LABEL: define void @quux(
; CHECK-SAME: ptr addrspace(1) nocapture readonly [[ARG:%.*]], i32 [[ARG2:%.*]], ptr addrspace(3) nocapture [[ARG3:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[ICMP:%.*]] = icmp ugt i32 [[ARG2]], 10
; CHECK-NEXT:    [[GETELEMENTPTR:%.*]] = getelementptr i32, ptr addrspace(1) [[ARG]], i32 6
; CHECK-NEXT:    [[GETELEMENTPTR4:%.*]] = getelementptr i32, ptr addrspace(1) [[ARG]], i32 7
; CHECK-NEXT:    [[SELECT:%.*]] = select i1 [[ICMP]], ptr addrspace(1) [[GETELEMENTPTR]], ptr addrspace(1) [[GETELEMENTPTR4]]
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) [[ARG]], i64 4) ]
; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr addrspace(1) [[SELECT]], align 2
; CHECK-NEXT:    [[GETELEMENTPTR5:%.*]] = getelementptr inbounds i32, ptr addrspace(3) [[ARG3]], i32 1
; CHECK-NEXT:    store i32 [[LOAD]], ptr addrspace(3) [[GETELEMENTPTR5]], align 4
; CHECK-NEXT:    ret void
;
bb:
  %icmp = icmp ugt i32 %arg2, 10
  %getelementptr = getelementptr i32, ptr addrspace(1) %arg, i32 6
  %getelementptr4 = getelementptr i32, ptr addrspace(1) %arg, i32 7
  %select = select i1 %icmp, ptr addrspace(1) %getelementptr, ptr addrspace(1) %getelementptr4
  call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) %arg, i64 4) ]
  %load = load i32, ptr addrspace(1) %select, align 2
  %getelementptr5 = getelementptr inbounds i32, ptr addrspace(3) %arg3, i32 1
  store i32 %load, ptr addrspace(3) %getelementptr5, align 4
  ret void
}

define void @widget.1(ptr addrspace(1) nocapture readonly %arg, i32 %arg2, ptr addrspace(3) nocapture %arg3) {
; CHECK-LABEL: define void @widget.1(
; CHECK-SAME: ptr addrspace(1) nocapture readonly [[ARG:%.*]], i32 [[ARG2:%.*]], ptr addrspace(3) nocapture [[ARG3:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[ADDRSPACECAST:%.*]] = addrspacecast ptr addrspace(3) [[ARG3]] to ptr addrspace(1)
; CHECK-NEXT:    [[GETELEMENTPTR:%.*]] = getelementptr i32, ptr addrspace(1) [[ADDRSPACECAST]]
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr addrspace(3) [[ARG3]], i64 4) ]
; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr addrspace(1) [[GETELEMENTPTR]], align 2
; CHECK-NEXT:    [[GETELEMENTPTR4:%.*]] = getelementptr inbounds i32, ptr addrspace(3) [[ARG3]], i32 1
; CHECK-NEXT:    store i32 [[LOAD]], ptr addrspace(3) [[GETELEMENTPTR4]], align 4
; CHECK-NEXT:    ret void
;
bb:
  %addrspacecast = addrspacecast ptr addrspace(3) %arg3 to ptr addrspace(1)
  %getelementptr = getelementptr i32, ptr addrspace(1) %addrspacecast
  call void @llvm.assume(i1 true) [ "align"(ptr addrspace(3) %arg3, i64 4) ]
  %load = load i32, ptr addrspace(1) %getelementptr, align 2
  %getelementptr4 = getelementptr inbounds i32, ptr addrspace(3) %arg3, i32 1
  store i32 %load, ptr addrspace(3) %getelementptr4, align 2
  ret void
}

define void @baz(ptr addrspace(1) nocapture readonly %arg, ptr addrspace(3) nocapture %arg1) {
; CHECK-LABEL: define void @baz(
; CHECK-SAME: ptr addrspace(1) nocapture readonly [[ARG:%.*]], ptr addrspace(3) nocapture [[ARG1:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[GETELEMENTPTR:%.*]] = getelementptr ptr addrspace(1), ptr addrspace(1) [[ARG]], i64 16
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) [[ARG]], i64 4) ]
; CHECK-NEXT:    [[LOAD:%.*]] = load ptr addrspace(1), ptr addrspace(1) [[GETELEMENTPTR]], align 4
; CHECK-NEXT:    [[GETELEMENTPTR2:%.*]] = getelementptr inbounds i32, ptr addrspace(3) [[ARG1]], i32 1
; CHECK-NEXT:    store ptr addrspace(1) [[LOAD]], ptr addrspace(3) [[GETELEMENTPTR2]], align 2
; CHECK-NEXT:    ret void
;
bb:
  %getelementptr = getelementptr ptr addrspace(1), ptr addrspace(1) %arg, i64 16
  call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) %arg, i64 4) ]
  %load = load ptr addrspace(1), ptr addrspace(1) %getelementptr, align 2
  %getelementptr2 = getelementptr inbounds i32, ptr addrspace(3) %arg1, i32 1
  store ptr addrspace(1) %load, ptr addrspace(3) %getelementptr2, align 2
  ret void
}

define void @foo(ptr addrspace(1) nocapture readonly %arg, i32 %arg1) {
; CHECK-LABEL: define void @foo(
; CHECK-SAME: ptr addrspace(1) nocapture readonly [[ARG:%.*]], i32 [[ARG1:%.*]]) {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[GETELEMENTPTR:%.*]] = getelementptr ptr addrspace(3), ptr addrspace(1) [[ARG]], i64 16
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) [[ARG]], i64 4) ]
; CHECK-NEXT:    [[LOAD:%.*]] = load ptr addrspace(3), ptr addrspace(1) [[GETELEMENTPTR]], align 4
; CHECK-NEXT:    store i32 [[ARG1]], ptr addrspace(3) [[LOAD]], align 2
; CHECK-NEXT:    ret void
;
bb:
  %getelementptr = getelementptr ptr addrspace(3), ptr addrspace(1) %arg, i64 16
  call void @llvm.assume(i1 true) [ "align"(ptr addrspace(1) %arg, i64 4) ]
  %load = load ptr addrspace(3), ptr addrspace(1) %getelementptr, align 2
  store i32 %arg1, ptr addrspace(3) %load, align 2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write)
declare void @llvm.assume(i1 noundef) #0

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write) }