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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -aa-pipeline=basic-aa -passes='require<memoryssa>,gvn' -S -verify-memoryssa %s | FileCheck %s3 4; REQUIRES: asserts5 6declare void @use(i32) readnone7 8define i32 @test(ptr %ptr.0, ptr %ptr.1, i1 %c) {9; CHECK-LABEL: @test(10; CHECK-NEXT: entry:11; CHECK-NEXT: [[LV_0:%.*]] = load i32, ptr [[PTR_0:%.*]], align 812; CHECK-NEXT: call void @use(i32 [[LV_0]])13; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN749:%.*]], label [[FOR_INC774:%.*]]14; CHECK: if.then749:15; CHECK-NEXT: [[LV_1:%.*]] = load ptr, ptr [[PTR_1:%.*]], align 816; CHECK-NEXT: store i32 10, ptr [[LV_1]], align 417; CHECK-NEXT: [[LV_2_PRE:%.*]] = load i32, ptr [[PTR_0]], align 818; CHECK-NEXT: br label [[FOR_INC774]]19; CHECK: for.inc774:20; CHECK-NEXT: [[LV_2:%.*]] = phi i32 [ [[LV_2_PRE]], [[IF_THEN749]] ], [ [[LV_0]], [[ENTRY:%.*]] ]21; CHECK-NEXT: call void @use(i32 [[LV_2]])22; CHECK-NEXT: ret i32 123;24entry:25 br label %for.end43526 27for.end435:28 %lv.0 = load i32, ptr %ptr.0, align 829 call void @use(i32 %lv.0)30 br label %if.end72431 32if.end724:33 br i1 %c, label %if.then749, label %for.inc77434 35if.then749:36 %lv.1 = load ptr, ptr %ptr.1, align 837 store i32 10, ptr %lv.1, align 438 br label %for.inc77439 40for.inc774:41 br label %for.body83042 43for.body830:44 %lv.2 = load i32, ptr %ptr.0, align 845 call void @use(i32 %lv.2)46 br label %for.body.i2247 48for.body.i22:49 ret i32 150}51 52define i32 @test_volatile(ptr %ptr.0, ptr %ptr.1, i1 %c) {53; CHECK-LABEL: @test_volatile(54; CHECK-NEXT: entry:55; CHECK-NEXT: [[LV_0:%.*]] = load volatile i32, ptr [[PTR_0:%.*]], align 856; CHECK-NEXT: call void @use(i32 [[LV_0]])57; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN749:%.*]], label [[FOR_INC774:%.*]]58; CHECK: if.then749:59; CHECK-NEXT: [[LV_1:%.*]] = load volatile ptr, ptr [[PTR_1:%.*]], align 860; CHECK-NEXT: store i32 10, ptr [[LV_1]], align 461; CHECK-NEXT: br label [[FOR_INC774]]62; CHECK: for.inc774:63; CHECK-NEXT: [[LV_2:%.*]] = load volatile i32, ptr [[PTR_0]], align 864; CHECK-NEXT: call void @use(i32 [[LV_2]])65; CHECK-NEXT: ret i32 166;67entry:68 br label %for.end43569 70for.end435:71 %lv.0 = load volatile i32, ptr %ptr.0, align 872 call void @use(i32 %lv.0)73 br label %if.end72474 75if.end724:76 br i1 %c, label %if.then749, label %for.inc77477 78if.then749:79 %lv.1 = load volatile ptr, ptr %ptr.1, align 880 store i32 10, ptr %lv.1, align 481 br label %for.inc77482 83for.inc774:84 br label %for.body83085 86for.body830:87 %lv.2 = load volatile i32, ptr %ptr.0, align 888 call void @use(i32 %lv.2)89 br label %for.body.i2290 91for.body.i22:92 ret i32 193}94 95define void @test_assume_false_to_store_undef_1(ptr %ptr) {96; CHECK-LABEL: @test_assume_false_to_store_undef_1(97; CHECK-NEXT: store i32 10, ptr [[PTR:%.*]], align 498; CHECK-NEXT: store i8 poison, ptr null, align 199; CHECK-NEXT: call void @f()100; CHECK-NEXT: ret void101;102 store i32 10, ptr %ptr103 %tobool = icmp ne i16 1, 0104 %xor = xor i1 %tobool, true105 call void @llvm.assume(i1 %xor)106 call void @f()107 ret void108}109 110define i32 @test_assume_false_to_store_undef_2(ptr %ptr, ptr %ptr.2) {111; CHECK-LABEL: @test_assume_false_to_store_undef_2(112; CHECK-NEXT: store i32 10, ptr [[PTR:%.*]], align 4113; CHECK-NEXT: [[LV:%.*]] = load i32, ptr [[PTR_2:%.*]], align 4114; CHECK-NEXT: store i8 poison, ptr null, align 1115; CHECK-NEXT: call void @f()116; CHECK-NEXT: ret i32 [[LV]]117;118 store i32 10, ptr %ptr119 %lv = load i32, ptr %ptr.2120 %tobool = icmp ne i16 1, 0121 %xor = xor i1 %tobool, true122 call void @llvm.assume(i1 %xor)123 call void @f()124 ret i32 %lv125}126 127define i32 @test_assume_false_to_store_undef_3(ptr %ptr, ptr %ptr.2) {128; CHECK-LABEL: @test_assume_false_to_store_undef_3(129; CHECK-NEXT: store i32 10, ptr [[PTR:%.*]], align 4130; CHECK-NEXT: [[LV:%.*]] = load i32, ptr [[PTR_2:%.*]], align 4131; CHECK-NEXT: store i8 poison, ptr null, align 1132; CHECK-NEXT: ret i32 [[LV]]133;134 store i32 10, ptr %ptr135 %lv = load i32, ptr %ptr.2136 %tobool = icmp ne i16 1, 0137 %xor = xor i1 %tobool, true138 call void @llvm.assume(i1 %xor)139 ret i32 %lv140}141 142; Test case for PR48616.143define void @rename_unreachable_block(i1 %c) personality ptr undef {144; CHECK-LABEL: @rename_unreachable_block(145; CHECK-NEXT: ret void146; CHECK: bb1:147; CHECK-NEXT: [[LP:%.*]] = landingpad { ptr, i32 }148; CHECK-NEXT: cleanup149; CHECK-NEXT: ret void150; CHECK: bb2:151; CHECK-NEXT: invoke void @f()152; CHECK-NEXT: to label [[BB4:%.*]] unwind label [[BB1:%.*]]153; CHECK: bb4:154; CHECK-NEXT: unreachable155;156 ret void157 158bb1:159 %lp = landingpad { ptr, i32 }160 cleanup161 ret void162 163bb2:164 br i1 %c, label %bb3, label %bb3165 166bb3:167 invoke void @f()168 to label %bb4 unwind label %bb1169 170bb4:171 unreachable172}173 174declare void @f()175 176declare void @llvm.assume(i1 noundef) #0177 178attributes #0 = { nofree nosync nounwind willreturn }179