80 lines
2.0 KiB
Mathematica
80 lines
2.0 KiB
Mathematica
|
// RUN: %clang_cc1 -emit-llvm -triple i686-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -o - %s -O2 | FileCheck %s
|
||
|
|
|
||
|
|
@interface MyClass
|
||
|
|
{
|
||
|
|
}
|
||
|
|
- (void)method;
|
||
|
|
@end
|
||
|
|
|
||
|
|
@implementation MyClass
|
||
|
|
|
||
|
|
// CHECK: define internal void @"\01-[MyClass method]"
|
||
|
|
- (void)method
|
||
|
|
{
|
||
|
|
// CHECK: call i32 @objc_sync_enter
|
||
|
|
// CHECK: call void @objc_exception_try_enter
|
||
|
|
// CHECK: call i32 @_setjmp
|
||
|
|
@synchronized(self) {
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
@end
|
||
|
|
|
||
|
|
// CHECK-LABEL: define{{.*}} void @foo(
|
||
|
|
void foo(id a) {
|
||
|
|
// CHECK: [[A:%.*]] = alloca i8*
|
||
|
|
// CHECK: [[SYNC:%.*]] = alloca i8*
|
||
|
|
|
||
|
|
// CHECK: store i8* [[AVAL:%.*]], i8** [[A]]
|
||
|
|
// CHECK-NEXT: call i32 @objc_sync_enter(i8* [[AVAL]])
|
||
|
|
// CHECK-NEXT: store i8* [[AVAL]], i8** [[SYNC]]
|
||
|
|
// CHECK-NEXT: call void @objc_exception_try_enter
|
||
|
|
// CHECK: call i32 @_setjmp
|
||
|
|
@synchronized(a) {
|
||
|
|
// This is unreachable, but the optimizers can't know that.
|
||
|
|
// CHECK: call void asm sideeffect "", "=*m,=*m,=*m"(i8** nonnull [[A]], i8** nonnull [[SYNC]]
|
||
|
|
// CHECK: call i32 @objc_sync_exit
|
||
|
|
// CHECK: call i8* @objc_exception_extract
|
||
|
|
// CHECK: call void @objc_exception_throw
|
||
|
|
// CHECK: unreachable
|
||
|
|
|
||
|
|
// CHECK: call void @objc_exception_try_exit
|
||
|
|
// CHECK: [[T:%.*]] = load i8*, i8** [[SYNC]]
|
||
|
|
// CHECK-NEXT: call i32 @objc_sync_exit
|
||
|
|
// CHECK: ret void
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK-LABEL: define{{.*}} i32 @f0(
|
||
|
|
int f0(id a) {
|
||
|
|
// TODO: we can optimize the ret to a constant if we can figure out
|
||
|
|
// either that x isn't stored to within the synchronized block or
|
||
|
|
// that the synchronized block can't longjmp.
|
||
|
|
|
||
|
|
// CHECK: [[X:%.*]] = alloca i32
|
||
|
|
// CHECK: store i32 1, i32* [[X]]
|
||
|
|
int x = 0;
|
||
|
|
@synchronized((x++, a)) {
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: [[T:%.*]] = load i32, i32* [[X]]
|
||
|
|
// CHECK: ret i32 [[T]]
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK-LABEL: define{{.*}} void @f1(
|
||
|
|
void f1(id a) {
|
||
|
|
// Check that the return doesn't go through the cleanup.
|
||
|
|
extern void opaque(void);
|
||
|
|
opaque();
|
||
|
|
|
||
|
|
// CHECK: call void @opaque()
|
||
|
|
// CHECK-NEXT: ret void
|
||
|
|
|
||
|
|
@synchronized(({ return; }), a) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|