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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 ptr, ptr @test0_helper
// CHECK-NEXT: [[T1:%.*]] = tail call ptr @llvm.objc.retainAutoreleaseReturnValue(ptr [[LD]])
// CHECK-NEXT: ret ptr [[T1]]
}
id test1(void) {
extern id test1_helper;
return test1_helper;
// CHECK: [[LD:%.*]] = load ptr, ptr @test1_helper
// CHECK-NEXT: [[T0:%.*]] = tail call ptr @llvm.objc.retainAutoreleaseReturnValue(ptr [[LD]])
// CHECK-NEXT: ret ptr [[T0]]
}
void test2(void) {
// CHECK: [[X:%.*]] = alloca ptr
// CHECK-NEXT: store ptr null, ptr [[X]]
// CHECK-NEXT: call void @llvm.objc.destroyWeak(ptr [[X]])
// CHECK-NEXT: ret void
__weak id x;
}
id test3(void) {
extern id test3_helper(void);
// CHECK: [[T0:%.*]] = call ptr @test3_helper()
// CHECK-NEXT: ret ptr [[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 ptr @test4_helper()
// CHECK-NEXT: ret ptr [[T0]]
return test4_helper();
}
@class Test5;
void test5(void) {
Test5 *x, *y;
if ((x = y))
y = 0;
// CHECK-LABEL: define{{.*}} void @test5()
// CHECK: [[X:%.*]] = alloca ptr,
// CHECK-NEXT: [[Y:%.*]] = alloca ptr,
// CHECK-NEXT: store ptr null, ptr [[X]],
// CHECK-NEXT: store ptr null, ptr [[Y]],
// CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[Y]],
// CHECK-NEXT: call void @llvm.objc.storeStrong(ptr [[X]], ptr [[T0]])
// CHECK-NEXT: [[T3:%.*]] = icmp ne ptr [[T0]], null
// CHECK-NEXT: br i1 [[T3]],
}
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