; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" declare void @use(ptr) declare i1 @cond() define void @test_monotonic_ptr_iv_inc_1_eq_to_uge(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_eq_to_uge( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i32, ptr [[START:%.*]], i16 10 ; 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 i32, ptr [[PTR_IV]], i16 1 ; CHECK-NEXT: br label [[LOOP_HEADER]] ; CHECK: exit: ; CHECK-NEXT: ret void ; loop.ph: %upper = getelementptr inbounds i32, ptr %start, i16 10 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_1_upper_is_multiple_1(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_multiple_1( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 15 ; 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 i8, ptr [[PTR_IV]], i16 1 ; CHECK-NEXT: br label [[LOOP_HEADER]] ; CHECK: exit: ; CHECK-NEXT: ret void ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 15 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 i8, ptr %ptr.iv, i16 1 br label %loop.header exit: ret void } define void @test_monotonic_ptr_iv_inc_1_upper_is_multiple_2(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_multiple_2( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 16 ; 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 i16, ptr [[PTR_IV]], i16 1 ; CHECK-NEXT: br label [[LOOP_HEADER]] ; CHECK: exit: ; CHECK-NEXT: ret void ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 16 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 i16, ptr %ptr.iv, i16 1 br label %loop.header exit: ret void } define void @test_monotonic_ptr_iv_inc_upper_is_not_multiple_1(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_upper_is_not_multiple_1( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 15 ; 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 ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 15 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_upper_is_not_multiple_2(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_upper_is_not_multiple_2( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 15 ; 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 ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 15 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_1_upper_is_multiple_with_early_exit_1(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_multiple_with_early_exit_1( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 10 ; 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 i8, ptr [[PTR_IV]], i16 1 ; CHECK-NEXT: br label [[LOOP_HEADER]] ; CHECK: exit: ; CHECK-NEXT: ret void ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 10 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 i8, ptr %ptr.iv, i16 1 br label %loop.header exit: ret void } define void @test_monotonic_ptr_iv_inc_1_upper_is_multiple_with_early_exit_2(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_multiple_with_early_exit_2( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 10 ; 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 i16, ptr [[PTR_IV]], i16 1 ; CHECK-NEXT: br label [[LOOP_HEADER]] ; CHECK: exit: ; CHECK-NEXT: ret void ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 10 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 i16, ptr %ptr.iv, i16 1 br label %loop.header exit: ret void } define void @test_monotonic_ptr_iv_inc_1_upper_is_multiple_with_early_exit_3(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_multiple_with_early_exit_3( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i16, ptr [[START:%.*]], i16 16 ; 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 i32, ptr [[PTR_IV]], i16 1 ; CHECK-NEXT: br label [[LOOP_HEADER]] ; CHECK: exit: ; CHECK-NEXT: ret void ; loop.ph: %upper = getelementptr inbounds i16, ptr %start, i16 16 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_1_upper_is_no_multiple_with_early_exit_1(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_no_multiple_with_early_exit_1( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 10 ; 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 ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 10 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_1_upper_is_no_multiple_with_early_exit_2(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_no_multiple_with_early_exit_2( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i8, ptr [[START:%.*]], i16 11 ; 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 i16, ptr [[PTR_IV]], i16 1 ; CHECK-NEXT: br label [[LOOP_HEADER]] ; CHECK: exit: ; CHECK-NEXT: ret void ; loop.ph: %upper = getelementptr inbounds i8, ptr %start, i16 11 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 i16, ptr %ptr.iv, i16 1 br label %loop.header exit: ret void } define void @test_monotonic_ptr_iv_inc_1_upper_is_no_multiple_with_early_exit_3(ptr %start) { ; CHECK-LABEL: @test_monotonic_ptr_iv_inc_1_upper_is_no_multiple_with_early_exit_3( ; CHECK-NEXT: loop.ph: ; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i16, ptr [[START:%.*]], i16 9 ; 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 ; loop.ph: %upper = getelementptr inbounds i16, ptr %start, i16 9 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 }