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1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -o - %s | FileCheck %s2 3id g0, g1;4 5void test0(_Bool cond) {6 id test0_helper(void) __attribute__((ns_returns_retained));7 8 // CHECK-LABEL: define{{.*}} void @test0(9 // CHECK: [[COND:%.*]] = alloca i8,10 // CHECK-NEXT: [[X:%.*]] = alloca ptr,11 // CHECK-NEXT: [[RELVAL:%.*]] = alloca ptr12 // CHECK-NEXT: [[RELCOND:%.*]] = alloca i113 // CHECK-NEXT: zext14 // CHECK-NEXT: store15 // CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[X]])16 // CHECK-NEXT: [[T0:%.*]] = load i8, ptr [[COND]]17 // CHECK-NEXT: [[T1:%.*]] = trunc i8 [[T0]] to i118 // CHECK-NEXT: store i1 false, ptr [[RELCOND]]19 // CHECK-NEXT: br i1 [[T1]],20 // CHECK: br label21 // CHECK: [[CALL:%.*]] = call ptr @test0_helper()22 // CHECK-NEXT: store ptr [[CALL]], ptr [[RELVAL]]23 // CHECK-NEXT: store i1 true, ptr [[RELCOND]]24 // CHECK-NEXT: br label25 // CHECK: [[T0:%.*]] = phi ptr [ null, {{%.*}} ], [ [[CALL]], {{%.*}} ]26 // CHECK-NEXT: [[T1:%.*]] = call ptr @llvm.objc.retain(ptr [[T0]]) [[NUW:#[0-9]+]]27 // CHECK-NEXT: store ptr [[T1]], ptr [[X]],28 // CHECK-NEXT: [[REL:%.*]] = load i1, ptr [[RELCOND]]29 // CHECK-NEXT: br i1 [[REL]],30 // CHECK: [[T0:%.*]] = load ptr, ptr [[RELVAL]]31 // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) [[NUW]]32 // CHECK-NEXT: br label33 // CHECK: [[T0:%.*]] = load ptr, ptr [[X]]34 // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) [[NUW]]35 // CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[X]])36 // CHECK-NEXT: ret void37 id x = (cond ? 0 : test0_helper());38}39 40void test1(int cond) {41 __strong id strong;42 __weak id weak;43 extern void test1_sink(id *);44 test1_sink(cond ? &strong : 0);45 test1_sink(cond ? &weak : 0);46 47 // CHECK-LABEL: define{{.*}} void @test1(48 // CHECK: [[COND:%.*]] = alloca i3249 // CHECK-NEXT: [[STRONG:%.*]] = alloca ptr50 // CHECK-NEXT: [[WEAK:%.*]] = alloca ptr51 // CHECK-NEXT: [[TEMP1:%.*]] = alloca ptr52 // CHECK-NEXT: [[TEMP2:%.*]] = alloca ptr53 // CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca ptr54 // CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i155 // CHECK-NEXT: store i3256 // CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[STRONG]])57 // CHECK-NEXT: store ptr null, ptr [[STRONG]]58 // CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[WEAK]])59 // CHECK-NEXT: call ptr @llvm.objc.initWeak(ptr [[WEAK]], ptr null)60 61 // CHECK-NEXT: [[T0:%.*]] = load i32, ptr [[COND]]62 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 063 // CHECK: [[ARG:%.*]] = phi ptr64 // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null65 // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], ptr null, ptr [[TEMP1]]66 // CHECK-NEXT: br i1 [[T0]],67 // CHECK: [[T0:%.*]] = load ptr, ptr [[ARG]]68 // CHECK-NEXT: store ptr [[T0]], ptr [[TEMP1]]69 // CHECK-NEXT: br label70 // CHECK: [[W:%.*]] = phi ptr [ [[T0]], {{%.*}} ], [ poison, {{%.*}} ]71 // CHECK-NEXT: call void @test1_sink(ptr noundef [[T1]])72 // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null73 // CHECK-NEXT: br i1 [[T0]],74 // CHECK: [[T0:%.*]] = load ptr, ptr [[TEMP1]]75 // CHECK-NEXT: [[T1:%.*]] = call ptr @llvm.objc.retain(ptr [[T0]])76 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(ptr [[W]]) [[NUW]]77 // CHECK-NEXT: [[T2:%.*]] = load ptr, ptr [[ARG]]78 // CHECK-NEXT: store ptr [[T1]], ptr [[ARG]]79 // CHECK-NEXT: call void @llvm.objc.release(ptr [[T2]])80 // CHECK-NEXT: br label81 82 // CHECK: [[T0:%.*]] = load i32, ptr [[COND]]83 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 084 // CHECK: [[ARG:%.*]] = phi ptr85 // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null86 // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], ptr null, ptr [[TEMP2]]87 // CHECK-NEXT: store i1 false, ptr [[CONDCLEANUP]]88 // CHECK-NEXT: br i1 [[T0]],89 // CHECK: [[T0:%.*]] = call ptr @llvm.objc.loadWeakRetained(ptr [[ARG]])90 // CHECK-NEXT: store ptr [[T0]], ptr [[CONDCLEANUPSAVE]]91 // CHECK-NEXT: store i1 true, ptr [[CONDCLEANUP]]92 // CHECK-NEXT: store ptr [[T0]], ptr [[TEMP2]]93 // CHECK-NEXT: br label94 // CHECK: call void @test1_sink(ptr noundef [[T1]])95 // CHECK-NEXT: [[T0:%.*]] = icmp eq ptr [[ARG]], null96 // CHECK-NEXT: br i1 [[T0]],97 // CHECK: [[T0:%.*]] = load ptr, ptr [[TEMP2]]98 // CHECK-NEXT: call ptr @llvm.objc.storeWeak(ptr [[ARG]], ptr [[T0]])99 // CHECK-NEXT: br label100 101 // CHECK: call void @llvm.objc.destroyWeak(ptr [[WEAK]])102 // CHECK: call void @llvm.lifetime.end.p0(ptr [[WEAK]])103 // CHECK: call void @llvm.lifetime.end.p0(ptr [[STRONG]])104 // CHECK: ret void105}106 107// Test that, when emitting an expression at +1 that we can't peephole,108// we emit the retain inside the full-expression. If we ever peephole109// +1s of conditional expressions (which we probably ought to), we'll110// need to find another example of something we need to do this for.111void test2(int cond) {112 extern id test2_producer(void);113 for (id obj in cond ? test2_producer() : (void*) 0) {114 }115 116 // CHECK-LABEL: define{{.*}} void @test2(117 // CHECK: [[COND:%.*]] = alloca i32,118 // CHECK: alloca ptr119 // CHECK: [[CLEANUP_SAVE:%.*]] = alloca ptr120 // CHECK: [[RUN_CLEANUP:%.*]] = alloca i1121 // Evaluate condition; cleanup disabled by default.122 // CHECK: [[T0:%.*]] = load i32, ptr [[COND]],123 // CHECK-NEXT: icmp ne i32 [[T0]], 0124 // CHECK-NEXT: store i1 false, ptr [[RUN_CLEANUP]]125 // CHECK-NEXT: br i1126 // Within true branch, cleanup enabled.127 // CHECK: [[T1:%.*]] = call ptr @test2_producer() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]128 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use(ptr [[T1]])129 // CHECK-NEXT: store ptr [[T1]], ptr [[CLEANUP_SAVE]]130 // CHECK-NEXT: store i1 true, ptr [[RUN_CLEANUP]]131 // CHECK-NEXT: br label132 // Join point for conditional operator; retain immediately.133 // CHECK: [[T0:%.*]] = phi ptr [ [[T1]], {{%.*}} ], [ null, {{%.*}} ]134 // CHECK-NEXT: [[RESULT:%.*]] = call ptr @llvm.objc.retain(ptr [[T0]])135 // Leaving full-expression; run conditional cleanup.136 // CHECK-NEXT: [[T0:%.*]] = load i1, ptr [[RUN_CLEANUP]]137 // CHECK-NEXT: br i1 [[T0]]138 // CHECK: [[T0:%.*]] = load ptr, ptr [[CLEANUP_SAVE]]139 // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]])140 // CHECK-NEXT: br label141 // And way down at the end of the loop:142 // CHECK: call void @llvm.objc.release(ptr [[RESULT]])143}144 145void test3(int cond) {146 __strong id *p = cond ? (__strong id[]){g0, g1} : (__strong id[]){g1, g0};147 test2(cond);148 149 // CHECK: define{{.*}} void @test3(150 // CHECK: %[[P:.*]] = alloca ptr, align 8151 // CHECK: %[[_COMPOUNDLITERAL:.*]] = alloca [2 x ptr], align 8152 // CHECK: %[[CLEANUP_COND:.*]] = alloca i1, align 1153 // CHECK: %[[_COMPOUNDLITERAL1:.*]] = alloca [2 x ptr], align 8154 // CHECK: %[[CLEANUP_COND4:.*]] = alloca i1, align 1155 156 // CHECK: %[[V2:.*]] = load ptr, ptr @g0, align 8157 // CHECK: %[[V3:.*]] = call ptr @llvm.objc.retain(ptr %[[V2]])158 // CHECK: store ptr %[[V3]], ptr %[[_COMPOUNDLITERAL]], align 8159 // CHECK: %[[ARRAYINIT_ELEMENT:.*]] = getelementptr inbounds ptr, ptr %[[_COMPOUNDLITERAL]], i64 1160 // CHECK: %[[V4:.*]] = load ptr, ptr @g1, align 8161 // CHECK: %[[V5:.*]] = call ptr @llvm.objc.retain(ptr %[[V4]])162 // CHECK: store ptr %[[V5]], ptr %[[ARRAYINIT_ELEMENT]], align 8163 // CHECK: store i1 true, ptr %[[CLEANUP_COND]], align 1164 // CHECK: %[[ARRAYDECAY:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL]], i64 0, i64 0165 166 // CHECK: %[[V6:.*]] = load ptr, ptr @g1, align 8167 // CHECK: %[[V7:.*]] = call ptr @llvm.objc.retain(ptr %[[V6]])168 // CHECK: store ptr %[[V7]], ptr %[[_COMPOUNDLITERAL1]], align 8169 // CHECK: %[[ARRAYINIT_ELEMENT3:.*]] = getelementptr inbounds ptr, ptr %[[_COMPOUNDLITERAL1]], i64 1170 // CHECK: %[[V8:.*]] = load ptr, ptr @g0, align 8171 // CHECK: %[[V9:.*]] = call ptr @llvm.objc.retain(ptr %[[V8]])172 // CHECK: store ptr %[[V9]], ptr %[[ARRAYINIT_ELEMENT3]], align 8173 // CHECK: store i1 true, ptr %[[CLEANUP_COND4]], align 1174 // CHECK: %[[ARRAYDECAY5:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL1]], i64 0, i64 0175 176 // CHECK: %[[COND6:.*]] = phi ptr [ %[[ARRAYDECAY]], %{{.*}} ], [ %[[ARRAYDECAY5]], %{{.*}} ]177 // CHECK: store ptr %[[COND6]], ptr %[[P]], align 8178 // CHECK: call void @test2(179 180 // CHECK: %[[ARRAY_BEGIN:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL1]], i32 0, i32 0181 // CHECK: %[[V11:.*]] = getelementptr inbounds ptr, ptr %[[ARRAY_BEGIN]], i64 2182 183 // CHECK: %[[ARRAYDESTROY_ELEMENTPAST:.*]] = phi ptr [ %[[V11]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT:.*]], %{{.*}} ]184 // CHECK: %[[ARRAYDESTROY_ELEMENT]] = getelementptr inbounds ptr, ptr %[[ARRAYDESTROY_ELEMENTPAST]], i64 -1185 // CHECK: %[[V12:.*]] = load ptr, ptr %[[ARRAYDESTROY_ELEMENT]], align 8186 // CHECK: call void @llvm.objc.release(ptr %[[V12]])187 188 // CHECK: %[[ARRAY_BEGIN10:.*]] = getelementptr inbounds [2 x ptr], ptr %[[_COMPOUNDLITERAL]], i32 0, i32 0189 // CHECK: %[[V13:.*]] = getelementptr inbounds ptr, ptr %[[ARRAY_BEGIN10]], i64 2190 191 // CHECK: %[[ARRAYDESTROY_ELEMENTPAST12:.*]] = phi ptr [ %[[V13]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT13:.*]], %{{.*}} ]192 // CHECK: %[[ARRAYDESTROY_ELEMENT13]] = getelementptr inbounds ptr, ptr %[[ARRAYDESTROY_ELEMENTPAST12]], i64 -1193 // CHECK: %[[V14:.*]] = load ptr, ptr %[[ARRAYDESTROY_ELEMENT13]], align 8194 // CHECK: call void @llvm.objc.release(ptr %[[V14]])195}196 197// CHECK: attributes [[NUW]] = { nounwind }198