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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -o - %s | FileCheck %s
// A test to ensure that we generate fused calls at -O0.
@class Test0;
Test0 *test0(void) {
extern Test0 *test0_helper;
return test0_helper;
// CHECK: [[LD:%.*]] = load [[TEST0:%.*]]** @test0_helper
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST0]]* [[LD]] to i8*
// CHECK-NEXT: [[T1:%.*]] = tail call i8* @objc_retainAutoreleaseReturnValue(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[TEST0]]*
// CHECK-NEXT: ret [[TEST0]]* [[T2]]
}
id test1(void) {
extern id test1_helper;
return test1_helper;
// CHECK: [[LD:%.*]] = load i8** @test1_helper
// CHECK-NEXT: [[T0:%.*]] = tail call i8* @objc_retainAutoreleaseReturnValue(i8* [[LD]])
// CHECK-NEXT: ret i8* [[T0]]
}
void test2(void) {
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: store i8* null, i8** [[X]]
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[X]])
// CHECK-NEXT: ret void
__weak id x;
}
id test3(void) {
extern id test3_helper(void);
// CHECK: [[T0:%.*]] = call i8* @test3_helper()
// CHECK-NEXT: ret i8* [[T0]]
return test3_helper();
}
@interface Test4 { id x; } @end
@interface Test4_sub : Test4 { id y; } @end
Test4 *test4(void) {
extern Test4_sub *test4_helper(void);
// CHECK: [[T0:%.*]] = call [[TEST4S:%.*]]* @test4_helper()
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST4S]]* [[T0]] to [[TEST4:%.*]]*
// CHECK-NEXT: ret [[TEST4]]* [[T1]]
return test4_helper();
}
// rdar://problem/9418404
@class Test5;
void test5(void) {
Test5 *x, *y;
if ((x = y))
y = 0;
// CHECK-LABEL: define void @test5()
// CHECK: [[X:%.*]] = alloca [[TEST5:%.*]]*,
// CHECK-NEXT: [[Y:%.*]] = alloca [[TEST5:%.*]]*,
// CHECK-NEXT: store [[TEST5]]* null, [[TEST5]]** [[X]],
// CHECK-NEXT: store [[TEST5]]* null, [[TEST5]]** [[Y]],
// CHECK-NEXT: [[T0:%.*]] = load [[TEST5]]** [[Y]],
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST5]]** [[X]] to i8**
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST5]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T1]], i8* [[T2]])
// CHECK-NEXT: [[T3:%.*]] = icmp ne [[TEST5]]* [[T0]], null
// CHECK-NEXT: br i1 [[T3]],
}
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