; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s

; NOTE: The custom datalayout defines i32 to be 64 bit aligned.

target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i32:64:64-f80:128-n8:16:32:64-S128"

declare void @use(ptr)
declare i1 @cond()

define void @test_monotonic_ptr_iv_inc_1_element_types_with_different_alloc_type_sizes(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_element_types_with_different_alloc_type_sizes(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds float, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, [[T_2]]
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds i32, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds float, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds i32, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}

define void @test_monotonic_ptr_iv_inc_2_element_types_with_different_alloc_type_sizes(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_element_types_with_different_alloc_type_sizes(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, true
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds float, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds i32, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds float, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}

define void @test_monotonic_ptr_iv_inc_1_different_element_types_with_same_alloc_type_sizes(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_different_element_types_with_same_alloc_type_sizes(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds i5, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, true
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds i7, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds i5, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds i7, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}

define void @test_monotonic_ptr_iv_inc_2_different_element_types_with_same_alloc_type_sizes(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_different_element_types_with_same_alloc_type_sizes(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds i31, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, true
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds i30, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds i31, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds i30, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}

define void @test_monotonic_ptr_iv_inc_1_element_types_with_different_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_element_types_with_different_alloc_type_sizes_with_early_exit(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds float, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[C_1:%.*]] = call i1 @cond()
; CHECK-NEXT:    br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
; CHECK:       loop.next:
; CHECK-NEXT:    [[T_2:%.*]] = icmp ult ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, [[T_2]]
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds i32, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds float, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %c.1 = call i1 @cond()
  br i1 %c.1, label %loop.next, label %exit

loop.next:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds i32, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}

define void @test_monotonic_ptr_iv_inc_2_element_types_with_different_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_element_types_with_different_alloc_type_sizes_with_early_exit(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[C_1:%.*]] = call i1 @cond()
; CHECK-NEXT:    br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
; CHECK:       loop.next:
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, true
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds float, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds i32, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %c.1 = call i1 @cond()
  br i1 %c.1, label %loop.next, label %exit

loop.next:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds float, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}

define void @test_monotonic_ptr_iv_inc_1_different_element_types_with_same_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_different_element_types_with_same_alloc_type_sizes_with_early_exit(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds i5, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[C_1:%.*]] = call i1 @cond()
; CHECK-NEXT:    br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
; CHECK:       loop.next:
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, true
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds i7, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds i5, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %c.1 = call i1 @cond()
  br i1 %c.1, label %loop.next, label %exit

loop.next:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds i7, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}

define void @test_monotonic_ptr_iv_inc_2_different_element_types_with_same_alloc_type_sizes_with_early_exit(ptr %start, i16 %len) {
; CHECK-LABEL: @test_monotonic_ptr_iv_inc_2_different_element_types_with_same_alloc_type_sizes_with_early_exit(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[UPPER:%.*]] = getelementptr inbounds i31, ptr [[START:%.*]], i16 [[LEN:%.*]]
; CHECK-NEXT:    [[LEN_NEG:%.*]] = icmp slt i16 [[LEN]], 0
; CHECK-NEXT:    br i1 [[LEN_NEG]], label [[EXIT:%.*]], label [[LOOP_PH:%.*]]
; CHECK:       loop.ph:
; CHECK-NEXT:    br label [[LOOP_HEADER:%.*]]
; CHECK:       loop.header:
; CHECK-NEXT:    [[PTR_IV:%.*]] = phi ptr [ [[START]], [[LOOP_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT:    [[C:%.*]] = icmp eq ptr [[PTR_IV]], [[UPPER]]
; CHECK-NEXT:    br i1 [[C]], label [[EXIT]], label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[C_1:%.*]] = call i1 @cond()
; CHECK-NEXT:    br i1 [[C_1]], label [[LOOP_NEXT:%.*]], label [[EXIT]]
; CHECK:       loop.next:
; CHECK-NEXT:    [[AND:%.*]] = and i1 true, true
; CHECK-NEXT:    br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK:       loop.latch:
; CHECK-NEXT:    call void @use(ptr [[PTR_IV]])
; CHECK-NEXT:    [[PTR_IV_NEXT]] = getelementptr inbounds i30, ptr [[PTR_IV]], i16 1
; CHECK-NEXT:    br label [[LOOP_HEADER]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %upper = getelementptr inbounds i31, ptr %start, i16 %len
  %len.neg = icmp slt i16 %len, 0
  br i1 %len.neg, label %exit, label %loop.ph

loop.ph:
  br label %loop.header

loop.header:
  %ptr.iv = phi ptr [ %start, %loop.ph ], [ %ptr.iv.next, %loop.latch ]
  %c = icmp eq ptr %ptr.iv, %upper
  br i1 %c, label %exit, label %for.body

for.body:
  %c.1 = call i1 @cond()
  br i1 %c.1, label %loop.next, label %exit

loop.next:
  %t.1 = icmp uge ptr %ptr.iv, %start
  %t.2 = icmp ult ptr %ptr.iv, %upper
  %and = and i1 %t.1, %t.2
  br i1 %and, label %loop.latch, label %exit

loop.latch:
  call void @use(ptr %ptr.iv)
  %ptr.iv.next = getelementptr inbounds i30, ptr %ptr.iv, i16 1
  br label %loop.header

exit:
  ret void
}