139 lines
5.8 KiB
Mathematica
139 lines
5.8 KiB
Mathematica
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-optzns -o - %s | FileCheck %s
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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: [[T0:%.*]] = load 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* @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* [[RELCOND]]
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// CHECK-NEXT: br i1 [[REL]],
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// CHECK: [[T0:%.*]] = load i8** [[RELVAL]]
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// CHECK-NEXT: call void @objc_release(i8* [[T0]]) [[NUW]]
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// CHECK-NEXT: br label
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// CHECK: [[T0:%.*]] = load i8** [[X]]
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// CHECK-NEXT: call void @objc_release(i8* [[T0]]) [[NUW]]
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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: store i8* null, i8** [[STRONG]]
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// CHECK-NEXT: call i8* @objc_initWeak(i8** [[WEAK]], i8* null)
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// CHECK-NEXT: [[T0:%.*]] = load 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** [[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** [[TEMP1]]
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// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
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// CHECK-NEXT: call void (...)* @clang.arc.use(i8* [[W]]) [[NUW]]
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// CHECK-NEXT: [[T2:%.*]] = load i8** [[ARG]]
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// CHECK-NEXT: store i8* [[T1]], i8** [[ARG]]
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// CHECK-NEXT: call void @objc_release(i8* [[T2]])
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// CHECK-NEXT: br label
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// CHECK: [[T0:%.*]] = load 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* @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** [[TEMP2]]
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// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[ARG]], i8* [[T0]])
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// CHECK-NEXT: br label
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// CHECK: call void @objc_destroyWeak(i8** [[WEAK]])
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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* [[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:%.*]] = call i8* @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* @objc_retain(i8* [[T0]])
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// Leaving full-expression; run conditional cleanup.
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// CHECK-NEXT: [[T0:%.*]] = load i1* [[RUN_CLEANUP]]
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// CHECK-NEXT: br i1 [[T0]]
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// CHECK: [[T0:%.*]] = load i8** [[CLEANUP_SAVE]]
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// CHECK-NEXT: call void @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 @objc_release(i8* [[RESULT]])
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}
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// CHECK: attributes [[NUW]] = { nounwind }
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