| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -aa-pipeline=basic-aa -passes='require<memoryssa>,gvn' -S -verify-memoryssa %s | FileCheck %s |
| |
| ; REQUIRES: asserts |
| |
| declare void @use(i32) readnone |
| |
| define i32 @test(i32* %ptr.0, i32** %ptr.1, i1 %c) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[LV_0:%.*]] = load i32, i32* [[PTR_0:%.*]], align 8 |
| ; CHECK-NEXT: call void @use(i32 [[LV_0]]) |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN749:%.*]], label [[FOR_INC774:%.*]] |
| ; CHECK: if.then749: |
| ; CHECK-NEXT: [[LV_1:%.*]] = load i32*, i32** [[PTR_1:%.*]], align 8 |
| ; CHECK-NEXT: store i32 10, i32* [[LV_1]], align 4 |
| ; CHECK-NEXT: [[LV_2_PRE:%.*]] = load i32, i32* [[PTR_0]], align 8 |
| ; CHECK-NEXT: br label [[FOR_INC774]] |
| ; CHECK: for.inc774: |
| ; CHECK-NEXT: [[LV_2:%.*]] = phi i32 [ [[LV_2_PRE]], [[IF_THEN749]] ], [ [[LV_0]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: call void @use(i32 [[LV_2]]) |
| ; CHECK-NEXT: ret i32 1 |
| ; |
| entry: |
| br label %for.end435 |
| |
| for.end435: |
| %lv.0 = load i32, i32* %ptr.0, align 8 |
| call void @use(i32 %lv.0) |
| br label %if.end724 |
| |
| if.end724: |
| br i1 %c, label %if.then749, label %for.inc774 |
| |
| if.then749: |
| %lv.1 = load i32*, i32** %ptr.1, align 8 |
| %arrayidx772 = getelementptr inbounds i32, i32* %lv.1, i64 0 |
| store i32 10, i32* %arrayidx772, align 4 |
| br label %for.inc774 |
| |
| for.inc774: |
| br label %for.body830 |
| |
| for.body830: |
| %lv.2 = load i32, i32* %ptr.0, align 8 |
| call void @use(i32 %lv.2) |
| br label %for.body.i22 |
| |
| for.body.i22: |
| ret i32 1 |
| } |
| |
| define i32 @test_volatile(i32* %ptr.0, i32** %ptr.1, i1 %c) { |
| ; CHECK-LABEL: @test_volatile( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[LV_0:%.*]] = load volatile i32, i32* [[PTR_0:%.*]], align 8 |
| ; CHECK-NEXT: call void @use(i32 [[LV_0]]) |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN749:%.*]], label [[FOR_INC774:%.*]] |
| ; CHECK: if.then749: |
| ; CHECK-NEXT: [[LV_1:%.*]] = load volatile i32*, i32** [[PTR_1:%.*]], align 8 |
| ; CHECK-NEXT: store i32 10, i32* [[LV_1]], align 4 |
| ; CHECK-NEXT: br label [[FOR_INC774]] |
| ; CHECK: for.inc774: |
| ; CHECK-NEXT: [[LV_2:%.*]] = load volatile i32, i32* [[PTR_0]], align 8 |
| ; CHECK-NEXT: call void @use(i32 [[LV_2]]) |
| ; CHECK-NEXT: ret i32 1 |
| ; |
| entry: |
| br label %for.end435 |
| |
| for.end435: |
| %lv.0 = load volatile i32, i32* %ptr.0, align 8 |
| call void @use(i32 %lv.0) |
| br label %if.end724 |
| |
| if.end724: |
| br i1 %c, label %if.then749, label %for.inc774 |
| |
| if.then749: |
| %lv.1 = load volatile i32*, i32** %ptr.1, align 8 |
| %arrayidx772 = getelementptr inbounds i32, i32* %lv.1, i64 0 |
| store i32 10, i32* %arrayidx772, align 4 |
| br label %for.inc774 |
| |
| for.inc774: |
| br label %for.body830 |
| |
| for.body830: |
| %lv.2 = load volatile i32, i32* %ptr.0, align 8 |
| call void @use(i32 %lv.2) |
| br label %for.body.i22 |
| |
| for.body.i22: |
| ret i32 1 |
| } |
| |
| define void @test_assume_false_to_store_undef_1(i32* %ptr) { |
| ; CHECK-LABEL: @test_assume_false_to_store_undef_1( |
| ; CHECK-NEXT: store i32 10, i32* [[PTR:%.*]], align 4 |
| ; CHECK-NEXT: store i8 undef, i8* null, align 1 |
| ; CHECK-NEXT: call void @f() |
| ; CHECK-NEXT: ret void |
| ; |
| store i32 10, i32* %ptr |
| %tobool = icmp ne i16 1, 0 |
| %xor = xor i1 %tobool, true |
| call void @llvm.assume(i1 %xor) |
| call void @f() |
| ret void |
| } |
| |
| define i32 @test_assume_false_to_store_undef_2(i32* %ptr, i32* %ptr.2) { |
| ; CHECK-LABEL: @test_assume_false_to_store_undef_2( |
| ; CHECK-NEXT: store i32 10, i32* [[PTR:%.*]], align 4 |
| ; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR_2:%.*]], align 4 |
| ; CHECK-NEXT: store i8 undef, i8* null, align 1 |
| ; CHECK-NEXT: call void @f() |
| ; CHECK-NEXT: ret i32 [[LV]] |
| ; |
| store i32 10, i32* %ptr |
| %lv = load i32, i32* %ptr.2 |
| %tobool = icmp ne i16 1, 0 |
| %xor = xor i1 %tobool, true |
| call void @llvm.assume(i1 %xor) |
| call void @f() |
| ret i32 %lv |
| } |
| |
| define i32 @test_assume_false_to_store_undef_3(i32* %ptr, i32* %ptr.2) { |
| ; CHECK-LABEL: @test_assume_false_to_store_undef_3( |
| ; CHECK-NEXT: store i32 10, i32* [[PTR:%.*]], align 4 |
| ; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[PTR_2:%.*]], align 4 |
| ; CHECK-NEXT: store i8 undef, i8* null, align 1 |
| ; CHECK-NEXT: ret i32 [[LV]] |
| ; |
| store i32 10, i32* %ptr |
| %lv = load i32, i32* %ptr.2 |
| %tobool = icmp ne i16 1, 0 |
| %xor = xor i1 %tobool, true |
| call void @llvm.assume(i1 %xor) |
| ret i32 %lv |
| } |
| |
| ; Test case for PR48616. |
| define void @rename_unreachable_block(i1 %c) personality i32 (...)* undef { |
| ; CHECK-LABEL: @rename_unreachable_block( |
| ; CHECK-NEXT: ret void |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[LP:%.*]] = landingpad { i8*, i32 } |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: ret void |
| ; CHECK: bb2: |
| ; CHECK-NEXT: invoke void @f() |
| ; CHECK-NEXT: to label [[BB4:%.*]] unwind label [[BB1:%.*]] |
| ; CHECK: bb4: |
| ; CHECK-NEXT: unreachable |
| ; |
| ret void |
| |
| bb1: |
| %lp = landingpad { i8*, i32 } |
| cleanup |
| ret void |
| |
| bb2: |
| br i1 %c, label %bb3, label %bb3 |
| |
| bb3: |
| invoke void @f() |
| to label %bb4 unwind label %bb1 |
| |
| bb4: |
| unreachable |
| } |
| |
| declare void @f() |
| |
| declare void @llvm.assume(i1 noundef) #0 |
| |
| attributes #0 = { nofree nosync nounwind willreturn } |