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// RUN: %clang_cc1 -fblocks -fobjc-gc -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -print-ivar-layout -emit-llvm -o /dev/null %s > %t-64.layout
// RUN: FileCheck -check-prefix CHECK-LP64 --input-file=%t-64.layout %s
// rdar://12752901
struct S {
int i1;
id o1;
struct V {
int i2;
id o2;
} v1;
int i3;
id o3;
};
__weak id wid;
void x(id y) {}
void y(int a) {}
extern id opaque_id();
void f() {
__block int byref_int = 0;
char ch = 'a';
char ch1 = 'b';
char ch2 = 'c';
short sh = 2;
const id bar = (id) opaque_id();
id baz = 0;
__strong void *strong_void_sta;
__block id byref_bab = (id)0;
__block void *bl_var1;
int i; double dob;
// The patterns here are a sequence of bytes, each saying first how
// many sizeof(void*) chunks to skip (high nibble) and then how many
// to scan (low nibble). A zero byte says that we've reached the end
// of the pattern.
//
// All of these patterns start with 01 3x because the block header on
// LP64 consists of an isa pointer (which we're supposed to scan for
// some reason) followed by three words (2 ints, a function pointer,
// and a descriptor pointer).
// FIXME: do these really have to be named L_OBJC_CLASS_NAME_xxx?
// FIXME: sequences should never end in x0 00 instead of just 00
// Test 1
// byref int, short, char, char, char, id, id, strong void*, byref id
// CHECK-LP64: block variable layout for block: 0x01, 0x35, 0x10, 0x00
void (^b)() = ^{
byref_int = sh + ch+ch1+ch2 ;
x(bar);
x(baz);
x((id)strong_void_sta);
x(byref_bab);
};
b();
// Test 2
// byref int, short, char, char, char, id, id, strong void*, byref void*, byref id
// 01 36 10 00
// CHECK-LP64: block variable layout for block: 0x01, 0x36, 0x10, 0x00
void (^c)() = ^{
byref_int = sh + ch+ch1+ch2 ;
x(bar);
x(baz);
x((id)strong_void_sta);
x(wid);
bl_var1 = 0;
x(byref_bab);
};
c();
// Test 3
// byref int, short, char, char, char, id, id, byref void*, int, double, byref id
// 01 34 11 30 00
// FIXME: we'd get a better format here if we sorted by scannability, not just alignment
// CHECK-LP64: block variable layout for block: 0x01, 0x35, 0x30, 0x00
void (^d)() = ^{
byref_int = sh + ch+ch1+ch2 ;
x(bar);
x(baz);
x(wid);
bl_var1 = 0;
y(i + dob);
x(byref_bab);
};
d();
// Test 4
// struct S (int, id, int, id, int, id)
// 01 41 11 11 00
// CHECK-LP64: block variable layout for block: 0x01, 0x41, 0x11, 0x11, 0x00
struct S s2;
void (^e)() = ^{
x(s2.o1);
};
e();
}
// Test 5 (unions/structs and their nesting):
void Test5() {
struct S5 {
int i1;
id o1;
struct V {
int i2;
id o2;
} v1;
int i3;
union UI {
void * i1;
id o1;
int i3;
id o3;
}ui;
};
union U {
void * i1;
id o1;
int i3;
id o3;
}ui;
struct S5 s2;
union U u2;
// struct s2 (int, id, int, id, int, id?), union u2 (id?)
// 01 41 11 12 00
// CHECK-LP64: block variable layout for block: 0x01, 0x41, 0x11, 0x12, 0x00
void (^c)() = ^{
x(s2.ui.o1);
x(u2.o1);
};
c();
}
// rdar: //8417746
void CFRelease(id);
void notifyBlock(id dependentBlock) {
id singleObservationToken;
id token;
void (^b)();
// id, id, void(^)()
// 01 33 00
// CHECK-LP64: block variable layout for block: 0x01, 0x33, 0x00
void (^wrapperBlock)() = ^() {
CFRelease(singleObservationToken);
CFRelease(singleObservationToken);
CFRelease(token);
CFRelease(singleObservationToken);
b();
};
wrapperBlock();
}
void test_empty_block() {
// 01 00
// CHECK-LP64: block variable layout for block: 0x01, 0x30, 0x00
void (^wrapperBlock)() = ^() {
};
wrapperBlock();
}
// rdar://16111839
typedef union { char ch[8]; } SS;
typedef struct { SS s[4]; } CS;
void test_union_in_layout() {
CS cs;
^{ cs; };
}
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