| // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - -fblocks | FileCheck %s |
| void (^f)(void) = ^{}; |
| |
| // rdar://6768379 |
| int f0(int (^a0)()) { |
| return a0(1, 2, 3); |
| } |
| |
| // Verify that attributes on blocks are set correctly. |
| typedef struct s0 T; |
| struct s0 { |
| int a[64]; |
| }; |
| |
| // CHECK: define internal void @__f2_block_invoke(%struct.s0* noalias sret {{%.*}}, i8* {{%.*}}, %struct.s0* byval align 4 {{.*}}) |
| struct s0 f2(struct s0 a0) { |
| return ^(struct s0 a1){ return a1; }(a0); |
| } |
| |
| // This should not crash: rdar://6808051 |
| void *P = ^{ |
| void *Q = __func__; |
| }; |
| |
| void (^test1)(void) = ^(void) { |
| __block int i; |
| ^ { i = 1; }(); |
| }; |
| |
| typedef double ftype(double); |
| // It's not clear that we *should* support this syntax, but until that decision |
| // is made, we should support it properly and not crash. |
| ftype ^test2 = ^ftype { |
| return 0; |
| }; |
| |
| // rdar://problem/8605032 |
| void f3_helper(void (^)(void)); |
| void f3() { |
| _Bool b = 0; |
| f3_helper(^{ if (b) {} }); |
| } |
| |
| // rdar://problem/11322251 |
| // The bool can fill in between the header and the long long. |
| // Add the appropriate amount of padding between them. |
| void f4_helper(long long (^)(void)); |
| // CHECK-LABEL: define void @f4() |
| void f4(void) { |
| _Bool b = 0; |
| long long ll = 0; |
| // CHECK: alloca <{ i8*, i32, i32, i8*, {{%.*}}*, i8, [3 x i8], i64 }>, align 8 |
| f4_helper(^{ if (b) return ll; return 0LL; }); |
| } |
| |
| // rdar://problem/11354538 |
| // The alignment after rounding up to the align of F5 is actually |
| // greater than the required alignment. Don't assert. |
| struct F5 { |
| char buffer[32] __attribute((aligned)); |
| }; |
| void f5_helper(void (^)(struct F5 *)); |
| // CHECK-LABEL: define void @f5() |
| void f5(void) { |
| struct F5 value; |
| // CHECK: alloca <{ i8*, i32, i32, i8*, {{%.*}}*, [12 x i8], [[F5:%.*]] }>, align 16 |
| f5_helper(^(struct F5 *slot) { *slot = value; }); |
| } |
| |
| // rdar://14085217 |
| void (^b)() = ^{}; |
| int main() { |
| (b?: ^{})(); |
| } |
| // CHECK: [[ZERO:%.*]] = load void (...)*, void (...)** @b |
| // CHECK-NEXT: [[TB:%.*]] = icmp ne void (...)* [[ZERO]], null |
| // CHECK-NEXT: br i1 [[TB]], label [[CT:%.*]], label [[CF:%.*]] |
| // CHECK: [[ONE:%.*]] = bitcast void (...)* [[ZERO]] to void ()* |
| // CHECK-NEXT: br label [[CE:%.*]] |
| |