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207 lines
10 KiB
207 lines
10 KiB
4 months ago
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// 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
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id g0, g1;
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void test0(_Bool cond) {
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id test0_helper(void) __attribute__((ns_returns_retained));
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// CHECK-LABEL: define void @test0(
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// CHECK: [[COND:%.*]] = alloca i8,
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// CHECK-NEXT: [[X:%.*]] = alloca i8*,
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// CHECK-NEXT: [[RELVAL:%.*]] = alloca i8*
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// CHECK-NEXT: [[RELCOND:%.*]] = alloca i1
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// CHECK-NEXT: zext
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// CHECK-NEXT: store
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// CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
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// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
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// CHECK-NEXT: [[T0:%.*]] = load i8, i8* [[COND]]
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// CHECK-NEXT: [[T1:%.*]] = trunc i8 [[T0]] to i1
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// CHECK-NEXT: store i1 false, i1* [[RELCOND]]
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// CHECK-NEXT: br i1 [[T1]],
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// CHECK: br label
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// CHECK: [[CALL:%.*]] = call i8* @test0_helper()
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// CHECK-NEXT: store i8* [[CALL]], i8** [[RELVAL]]
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// CHECK-NEXT: store i1 true, i1* [[RELCOND]]
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// CHECK-NEXT: br label
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// CHECK: [[T0:%.*]] = phi i8* [ null, {{%.*}} ], [ [[CALL]], {{%.*}} ]
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// CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]]) [[NUW:#[0-9]+]]
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// CHECK-NEXT: store i8* [[T1]], i8** [[X]],
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// CHECK-NEXT: [[REL:%.*]] = load i1, i1* [[RELCOND]]
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// CHECK-NEXT: br i1 [[REL]],
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// CHECK: [[T0:%.*]] = load i8*, i8** [[RELVAL]]
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// CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]]
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// CHECK-NEXT: br label
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// CHECK: [[T0:%.*]] = load i8*, i8** [[X]]
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// CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]]
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// CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
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// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
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// CHECK-NEXT: ret void
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id x = (cond ? 0 : test0_helper());
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}
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void test1(int cond) {
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__strong id strong;
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__weak id weak;
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extern void test1_sink(id *);
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test1_sink(cond ? &strong : 0);
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test1_sink(cond ? &weak : 0);
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// CHECK-LABEL: define void @test1(
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// CHECK: [[COND:%.*]] = alloca i32
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// CHECK-NEXT: [[STRONG:%.*]] = alloca i8*
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// CHECK-NEXT: [[WEAK:%.*]] = alloca i8*
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// CHECK-NEXT: [[TEMP1:%.*]] = alloca i8*
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// CHECK-NEXT: [[TEMP2:%.*]] = alloca i8*
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// CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca i8*
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// CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1
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// CHECK-NEXT: store i32
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// CHECK-NEXT: [[STRONGPTR1:%.*]] = bitcast i8** [[STRONG]] to i8*
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// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[STRONGPTR1]])
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// CHECK-NEXT: store i8* null, i8** [[STRONG]]
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// CHECK-NEXT: [[WEAKPTR1:%.*]] = bitcast i8** [[WEAK]] to i8*
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// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[WEAKPTR1]])
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// CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[WEAK]], i8* null)
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// CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[COND]]
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// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
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// CHECK: [[ARG:%.*]] = phi i8**
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP1]]
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = load i8*, i8** [[ARG]]
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// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP1]]
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// CHECK-NEXT: br label
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// CHECK: [[W:%.*]] = phi i8* [ [[T0]], {{%.*}} ], [ undef, {{%.*}} ]
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// CHECK-NEXT: call void @test1_sink(i8** [[T1]])
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = load i8*, i8** [[TEMP1]]
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// CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
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// CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[W]]) [[NUW]]
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// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[ARG]]
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// CHECK-NEXT: store i8* [[T1]], i8** [[ARG]]
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// CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
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// CHECK-NEXT: br label
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// CHECK: [[T0:%.*]] = load i32, i32* [[COND]]
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// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
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// CHECK: [[ARG:%.*]] = phi i8**
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP2]]
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// CHECK-NEXT: store i1 false, i1* [[CONDCLEANUP]]
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[ARG]])
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// CHECK-NEXT: store i8* [[T0]], i8** [[CONDCLEANUPSAVE]]
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// CHECK-NEXT: store i1 true, i1* [[CONDCLEANUP]]
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// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP2]]
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// CHECK-NEXT: br label
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// CHECK: call void @test1_sink(i8** [[T1]])
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = load i8*, i8** [[TEMP2]]
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// CHECK-NEXT: call i8* @llvm.objc.storeWeak(i8** [[ARG]], i8* [[T0]])
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// CHECK-NEXT: br label
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// CHECK: call void @llvm.objc.destroyWeak(i8** [[WEAK]])
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// CHECK: [[WEAKPTR2:%.*]] = bitcast i8** [[WEAK]] to i8*
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// CHECK: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[WEAKPTR2]])
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// CHECK: [[STRONGPTR2:%.*]] = bitcast i8** [[STRONG]] to i8*
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// CHECK: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[STRONGPTR2]])
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// CHECK: ret void
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}
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// rdar://13113981
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// Test that, when emitting an expression at +1 that we can't peephole,
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// we emit the retain inside the full-expression. If we ever peephole
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// +1s of conditional expressions (which we probably ought to), we'll
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// need to find another example of something we need to do this for.
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void test2(int cond) {
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extern id test2_producer(void);
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for (id obj in cond ? test2_producer() : (void*) 0) {
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}
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// CHECK-LABEL: define void @test2(
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// CHECK: [[COND:%.*]] = alloca i32,
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// CHECK: alloca i8*
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// CHECK: [[CLEANUP_SAVE:%.*]] = alloca i8*
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// CHECK: [[RUN_CLEANUP:%.*]] = alloca i1
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// Evaluate condition; cleanup disabled by default.
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// CHECK: [[T0:%.*]] = load i32, i32* [[COND]],
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// CHECK-NEXT: icmp ne i32 [[T0]], 0
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// CHECK-NEXT: store i1 false, i1* [[RUN_CLEANUP]]
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// CHECK-NEXT: br i1
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// Within true branch, cleanup enabled.
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// CHECK: [[T0:%.*]] = call i8* @test2_producer()
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// CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
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// CHECK-NEXT: store i8* [[T1]], i8** [[CLEANUP_SAVE]]
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// CHECK-NEXT: store i1 true, i1* [[RUN_CLEANUP]]
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// CHECK-NEXT: br label
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// Join point for conditional operator; retain immediately.
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// CHECK: [[T0:%.*]] = phi i8* [ [[T1]], {{%.*}} ], [ null, {{%.*}} ]
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// CHECK-NEXT: [[RESULT:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
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// Leaving full-expression; run conditional cleanup.
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// CHECK-NEXT: [[T0:%.*]] = load i1, i1* [[RUN_CLEANUP]]
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// CHECK-NEXT: br i1 [[T0]]
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// CHECK: [[T0:%.*]] = load i8*, i8** [[CLEANUP_SAVE]]
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// CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
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// CHECK-NEXT: br label
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// And way down at the end of the loop:
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// CHECK: call void @llvm.objc.release(i8* [[RESULT]])
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}
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void test3(int cond) {
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__strong id *p = cond ? (__strong id[]){g0, g1} : (__strong id[]){g1, g0};
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test2(cond);
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// CHECK: define void @test3(
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// CHECK: %[[P:.*]] = alloca i8**, align 8
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// CHECK: %[[_COMPOUNDLITERAL:.*]] = alloca [2 x i8*], align 8
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// CHECK: %[[CLEANUP_COND:.*]] = alloca i1, align 1
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// CHECK: %[[_COMPOUNDLITERAL1:.*]] = alloca [2 x i8*], align 8
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// CHECK: %[[CLEANUP_COND4:.*]] = alloca i1, align 1
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// CHECK: %[[ARRAYINIT_BEGIN:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[_COMPOUNDLITERAL]], i64 0, i64 0
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// CHECK: %[[V2:.*]] = load i8*, i8** @g0, align 8
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// CHECK: %[[V3:.*]] = call i8* @llvm.objc.retain(i8* %[[V2]])
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// CHECK: store i8* %[[V3]], i8** %[[ARRAYINIT_BEGIN]], align 8
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// CHECK: %[[ARRAYINIT_ELEMENT:.*]] = getelementptr inbounds i8*, i8** %[[ARRAYINIT_BEGIN]], i64 1
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// CHECK: %[[V4:.*]] = load i8*, i8** @g1, align 8
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// CHECK: %[[V5:.*]] = call i8* @llvm.objc.retain(i8* %[[V4]])
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// CHECK: store i8* %[[V5]], i8** %[[ARRAYINIT_ELEMENT]], align 8
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// CHECK: store i1 true, i1* %[[CLEANUP_COND]], align 1
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// CHECK: %[[ARRAYDECAY:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[_COMPOUNDLITERAL]], i64 0, i64 0
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// CHECK: %[[ARRAYINIT_BEGIN2:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[_COMPOUNDLITERAL1]], i64 0, i64 0
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// CHECK: %[[V6:.*]] = load i8*, i8** @g1, align 8
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// CHECK: %[[V7:.*]] = call i8* @llvm.objc.retain(i8* %[[V6]])
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// CHECK: store i8* %[[V7]], i8** %[[ARRAYINIT_BEGIN2]], align 8
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// CHECK: %[[ARRAYINIT_ELEMENT3:.*]] = getelementptr inbounds i8*, i8** %[[ARRAYINIT_BEGIN2]], i64 1
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// CHECK: %[[V8:.*]] = load i8*, i8** @g0, align 8
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// CHECK: %[[V9:.*]] = call i8* @llvm.objc.retain(i8* %[[V8]])
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// CHECK: store i8* %[[V9]], i8** %[[ARRAYINIT_ELEMENT3]], align 8
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// CHECK: store i1 true, i1* %[[CLEANUP_COND4]], align 1
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// CHECK: %[[ARRAYDECAY5:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[_COMPOUNDLITERAL1]], i64 0, i64 0
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// CHECK: %[[COND6:.*]] = phi i8** [ %[[ARRAYDECAY]], %{{.*}} ], [ %[[ARRAYDECAY5]], %{{.*}} ]
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// CHECK: store i8** %[[COND6]], i8*** %[[P]], align 8
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// CHECK: call void @test2(
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// CHECK: %[[ARRAY_BEGIN:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[_COMPOUNDLITERAL1]], i32 0, i32 0
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// CHECK: %[[V11:.*]] = getelementptr inbounds i8*, i8** %[[ARRAY_BEGIN]], i64 2
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// CHECK: %[[ARRAYDESTROY_ELEMENTPAST:.*]] = phi i8** [ %[[V11]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT:.*]], %{{.*}} ]
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// CHECK: %[[ARRAYDESTROY_ELEMENT]] = getelementptr inbounds i8*, i8** %[[ARRAYDESTROY_ELEMENTPAST]], i64 -1
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// CHECK: %[[V12:.*]] = load i8*, i8** %[[ARRAYDESTROY_ELEMENT]], align 8
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// CHECK: call void @llvm.objc.release(i8* %[[V12]])
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// CHECK: %[[ARRAY_BEGIN10:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[_COMPOUNDLITERAL]], i32 0, i32 0
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// CHECK: %[[V13:.*]] = getelementptr inbounds i8*, i8** %[[ARRAY_BEGIN10]], i64 2
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// CHECK: %[[ARRAYDESTROY_ELEMENTPAST12:.*]] = phi i8** [ %[[V13]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT13:.*]], %{{.*}} ]
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// CHECK: %[[ARRAYDESTROY_ELEMENT13]] = getelementptr inbounds i8*, i8** %[[ARRAYDESTROY_ELEMENTPAST12]], i64 -1
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// CHECK: %[[V14:.*]] = load i8*, i8** %[[ARRAYDESTROY_ELEMENT13]], align 8
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// CHECK: call void @llvm.objc.release(i8* %[[V14]])
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}
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// CHECK: attributes [[NUW]] = { nounwind }
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