| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -o - %s | FileCheck %s |
| |
| id g0, g1; |
| |
| void test0(_Bool cond) { |
| id test0_helper(void) __attribute__((ns_returns_retained)); |
| |
| // CHECK-LABEL: define{{.*}} void @test0( |
| // CHECK: [[COND:%.*]] = alloca i8, |
| // CHECK-NEXT: [[X:%.*]] = alloca ptr, |
| // CHECK-NEXT: [[RELVAL:%.*]] = alloca ptr |
| // CHECK-NEXT: [[RELCOND:%.*]] = alloca i1 |
| // CHECK-NEXT: zext |
| // CHECK-NEXT: store |
| // CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 8, ptr [[X]]) |
| // CHECK-NEXT: [[T0:%.*]] = load i8, ptr [[COND]] |
| // CHECK-NEXT: [[T1:%.*]] = trunc i8 [[T0]] to i1 |
| // CHECK-NEXT: store i1 false, ptr [[RELCOND]] |
| // CHECK-NEXT: br i1 [[T1]], |
| // CHECK: br label |
| // CHECK: [[CALL:%.*]] = call ptr @test0_helper() |
| // CHECK-NEXT: store ptr [[CALL]], ptr [[RELVAL]] |
| // CHECK-NEXT: store i1 true, ptr [[RELCOND]] |
| // CHECK-NEXT: br label |
| // CHECK: [[T0:%.*]] = phi ptr [ null, {{%.*}} ], [ [[CALL]], {{%.*}} ] |
| // CHECK-NEXT: [[T1:%.*]] = call ptr @llvm.objc.retain(ptr [[T0]]) [[NUW:#[0-9]+]] |
| // CHECK-NEXT: store ptr [[T1]], ptr [[X]], |
| // CHECK-NEXT: [[REL:%.*]] = load i1, ptr [[RELCOND]] |
| // CHECK-NEXT: br i1 [[REL]], |
| // CHECK: [[T0:%.*]] = load ptr, ptr [[RELVAL]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) [[NUW]] |
| // CHECK-NEXT: br label |
| // CHECK: [[T0:%.*]] = load ptr, ptr [[X]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) [[NUW]] |
| // CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 8, ptr [[X]]) |
| // CHECK-NEXT: ret void |
| id x = (cond ? 0 : test0_helper()); |
| } |
| |
| void test1(int cond) { |
| __strong id strong; |
| __weak id weak; |
| extern void test1_sink(id *); |
| test1_sink(cond ? &strong : 0); |
| test1_sink(cond ? &weak : 0); |
| |
| // CHECK-LABEL: define{{.*}} void @test1( |
| // CHECK: [[COND:%.*]] = alloca i32 |
| // CHECK-NEXT: [[STRONG:%.*]] = alloca ptr |
| // CHECK-NEXT: [[WEAK:%.*]] = alloca ptr |
| // CHECK-NEXT: [[TEMP1:%.*]] = alloca ptr |
| // CHECK-NEXT: [[TEMP2:%.*]] = alloca ptr |
| // CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca ptr |
| // CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1 |
| // CHECK-NEXT: store i32 |
| // CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 8, ptr [[STRONG]]) |
| // CHECK-NEXT: store ptr null, ptr [[STRONG]] |
| // CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 8, ptr [[WEAK]]) |
| // CHECK-NEXT: call ptr @llvm.objc.initWeak(ptr [[WEAK]], ptr null) |
| |
| // CHECK-NEXT: [[T0:%.*]] = load i32, ptr [[COND]] |
| // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0 |
| // CHECK: [[ARG:%.*]] = phi ptr |
| // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null |
| // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], ptr null, ptr [[TEMP1]] |
| // CHECK-NEXT: br i1 [[T0]], |
| // CHECK: [[T0:%.*]] = load ptr, ptr [[ARG]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[TEMP1]] |
| // CHECK-NEXT: br label |
| // CHECK: [[W:%.*]] = phi ptr [ [[T0]], {{%.*}} ], [ undef, {{%.*}} ] |
| // CHECK-NEXT: call void @test1_sink(ptr noundef [[T1]]) |
| // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null |
| // CHECK-NEXT: br i1 [[T0]], |
| // CHECK: [[T0:%.*]] = load ptr, ptr [[TEMP1]] |
| // CHECK-NEXT: [[T1:%.*]] = call ptr @llvm.objc.retain(ptr [[T0]]) |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(ptr [[W]]) [[NUW]] |
| // CHECK-NEXT: [[T2:%.*]] = load ptr, ptr [[ARG]] |
| // CHECK-NEXT: store ptr [[T1]], ptr [[ARG]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T2]]) |
| // CHECK-NEXT: br label |
| |
| // CHECK: [[T0:%.*]] = load i32, ptr [[COND]] |
| // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0 |
| // CHECK: [[ARG:%.*]] = phi ptr |
| // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null |
| // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], ptr null, ptr [[TEMP2]] |
| // CHECK-NEXT: store i1 false, ptr [[CONDCLEANUP]] |
| // CHECK-NEXT: br i1 [[T0]], |
| // CHECK: [[T0:%.*]] = call ptr @llvm.objc.loadWeakRetained(ptr [[ARG]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[CONDCLEANUPSAVE]] |
| // CHECK-NEXT: store i1 true, ptr [[CONDCLEANUP]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[TEMP2]] |
| // CHECK-NEXT: br label |
| // CHECK: call void @test1_sink(ptr noundef [[T1]]) |
| // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null |
| // CHECK-NEXT: br i1 [[T0]], |
| // CHECK: [[T0:%.*]] = load ptr, ptr [[TEMP2]] |
| // CHECK-NEXT: call ptr @llvm.objc.storeWeak(ptr [[ARG]], ptr [[T0]]) |
| // CHECK-NEXT: br label |
| |
| // CHECK: call void @llvm.objc.destroyWeak(ptr [[WEAK]]) |
| // CHECK: call void @llvm.lifetime.end.p0(i64 8, ptr [[WEAK]]) |
| // CHECK: call void @llvm.lifetime.end.p0(i64 8, ptr [[STRONG]]) |
| // CHECK: ret void |
| } |
| |
| // rdar://13113981 |
| // Test that, when emitting an expression at +1 that we can't peephole, |
| // we emit the retain inside the full-expression. If we ever peephole |
| // +1s of conditional expressions (which we probably ought to), we'll |
| // need to find another example of something we need to do this for. |
| void test2(int cond) { |
| extern id test2_producer(void); |
| for (id obj in cond ? test2_producer() : (void*) 0) { |
| } |
| |
| // CHECK-LABEL: define{{.*}} void @test2( |
| // CHECK: [[COND:%.*]] = alloca i32, |
| // CHECK: alloca ptr |
| // CHECK: [[CLEANUP_SAVE:%.*]] = alloca ptr |
| // CHECK: [[RUN_CLEANUP:%.*]] = alloca i1 |
| // Evaluate condition; cleanup disabled by default. |
| // CHECK: [[T0:%.*]] = load i32, ptr [[COND]], |
| // CHECK-NEXT: icmp ne i32 [[T0]], 0 |
| // CHECK-NEXT: store i1 false, ptr [[RUN_CLEANUP]] |
| // CHECK-NEXT: br i1 |
| // Within true branch, cleanup enabled. |
| // CHECK: [[T1:%.*]] = call ptr @test2_producer() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(ptr [[T1]]) |
| // CHECK-NEXT: store ptr [[T1]], ptr [[CLEANUP_SAVE]] |
| // CHECK-NEXT: store i1 true, ptr [[RUN_CLEANUP]] |
| // CHECK-NEXT: br label |
| // Join point for conditional operator; retain immediately. |
| // CHECK: [[T0:%.*]] = phi ptr [ [[T1]], {{%.*}} ], [ null, {{%.*}} ] |
| // CHECK-NEXT: [[RESULT:%.*]] = call ptr @llvm.objc.retain(ptr [[T0]]) |
| // Leaving full-expression; run conditional cleanup. |
| // CHECK-NEXT: [[T0:%.*]] = load i1, ptr [[RUN_CLEANUP]] |
| // CHECK-NEXT: br i1 [[T0]] |
| // CHECK: [[T0:%.*]] = load ptr, ptr [[CLEANUP_SAVE]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) |
| // CHECK-NEXT: br label |
| // And way down at the end of the loop: |
| // CHECK: call void @llvm.objc.release(ptr [[RESULT]]) |
| } |
| |
| void test3(int cond) { |
| __strong id *p = cond ? (__strong id[]){g0, g1} : (__strong id[]){g1, g0}; |
| test2(cond); |
| |
| // CHECK: define{{.*}} void @test3( |
| // CHECK: %[[P:.*]] = alloca ptr, align 8 |
| // CHECK: %[[_COMPOUNDLITERAL:.*]] = alloca [2 x ptr], align 8 |
| // CHECK: %[[CLEANUP_COND:.*]] = alloca i1, align 1 |
| // CHECK: %[[_COMPOUNDLITERAL1:.*]] = alloca [2 x ptr], align 8 |
| // CHECK: %[[CLEANUP_COND4:.*]] = alloca i1, align 1 |
| |
| // CHECK: %[[ARRAYINIT_BEGIN:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL]], i64 0, i64 0 |
| // CHECK: %[[V2:.*]] = load ptr, ptr @g0, align 8 |
| // CHECK: %[[V3:.*]] = call ptr @llvm.objc.retain(ptr %[[V2]]) |
| // CHECK: store ptr %[[V3]], ptr %[[ARRAYINIT_BEGIN]], align 8 |
| // CHECK: %[[ARRAYINIT_ELEMENT:.*]] = getelementptr inbounds ptr, ptr %[[ARRAYINIT_BEGIN]], i64 1 |
| // CHECK: %[[V4:.*]] = load ptr, ptr @g1, align 8 |
| // CHECK: %[[V5:.*]] = call ptr @llvm.objc.retain(ptr %[[V4]]) |
| // CHECK: store ptr %[[V5]], ptr %[[ARRAYINIT_ELEMENT]], align 8 |
| // CHECK: store i1 true, ptr %[[CLEANUP_COND]], align 1 |
| // CHECK: %[[ARRAYDECAY:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL]], i64 0, i64 0 |
| |
| // CHECK: %[[ARRAYINIT_BEGIN2:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL1]], i64 0, i64 0 |
| // CHECK: %[[V6:.*]] = load ptr, ptr @g1, align 8 |
| // CHECK: %[[V7:.*]] = call ptr @llvm.objc.retain(ptr %[[V6]]) |
| // CHECK: store ptr %[[V7]], ptr %[[ARRAYINIT_BEGIN2]], align 8 |
| // CHECK: %[[ARRAYINIT_ELEMENT3:.*]] = getelementptr inbounds ptr, ptr %[[ARRAYINIT_BEGIN2]], i64 1 |
| // CHECK: %[[V8:.*]] = load ptr, ptr @g0, align 8 |
| // CHECK: %[[V9:.*]] = call ptr @llvm.objc.retain(ptr %[[V8]]) |
| // CHECK: store ptr %[[V9]], ptr %[[ARRAYINIT_ELEMENT3]], align 8 |
| // CHECK: store i1 true, ptr %[[CLEANUP_COND4]], align 1 |
| // CHECK: %[[ARRAYDECAY5:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL1]], i64 0, i64 0 |
| |
| // CHECK: %[[COND6:.*]] = phi ptr [ %[[ARRAYDECAY]], %{{.*}} ], [ %[[ARRAYDECAY5]], %{{.*}} ] |
| // CHECK: store ptr %[[COND6]], ptr %[[P]], align 8 |
| // CHECK: call void @test2( |
| |
| // CHECK: %[[ARRAY_BEGIN:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL1]], i32 0, i32 0 |
| // CHECK: %[[V11:.*]] = getelementptr inbounds ptr, ptr %[[ARRAY_BEGIN]], i64 2 |
| |
| // CHECK: %[[ARRAYDESTROY_ELEMENTPAST:.*]] = phi ptr [ %[[V11]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT:.*]], %{{.*}} ] |
| // CHECK: %[[ARRAYDESTROY_ELEMENT]] = getelementptr inbounds ptr, ptr %[[ARRAYDESTROY_ELEMENTPAST]], i64 -1 |
| // CHECK: %[[V12:.*]] = load ptr, ptr %[[ARRAYDESTROY_ELEMENT]], align 8 |
| // CHECK: call void @llvm.objc.release(ptr %[[V12]]) |
| |
| // CHECK: %[[ARRAY_BEGIN10:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL]], i32 0, i32 0 |
| // CHECK: %[[V13:.*]] = getelementptr inbounds ptr, ptr %[[ARRAY_BEGIN10]], i64 2 |
| |
| // CHECK: %[[ARRAYDESTROY_ELEMENTPAST12:.*]] = phi ptr [ %[[V13]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT13:.*]], %{{.*}} ] |
| // CHECK: %[[ARRAYDESTROY_ELEMENT13]] = getelementptr inbounds ptr, ptr %[[ARRAYDESTROY_ELEMENTPAST12]], i64 -1 |
| // CHECK: %[[V14:.*]] = load ptr, ptr %[[ARRAYDESTROY_ELEMENT13]], align 8 |
| // CHECK: call void @llvm.objc.release(ptr %[[V14]]) |
| } |
| |
| // CHECK: attributes [[NUW]] = { nounwind } |
