1// RUN: %clang_cc1 -fobjc-arc -fblocks -emit-llvm %s -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK-HEAP %s 2// RUN: %clang_cc1 -fobjc-arc -fblocks -fobjc-avoid-heapify-local-blocks -emit-llvm %s -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK-NOHEAP %s 3 4 5typedef void (^block_t)(void); 6void use_block(block_t); 7void use_int(int); 8 9void test0(int i) { 10 block_t block = ^{ use_int(i); }; 11 // CHECK-LABEL: define {{.*}}void @test0( 12 // CHECK-HEAP: call {{.*}}ptr @llvm.objc.retainBlock(ptr {{%.*}}) [[NUW:#[0-9]+]], !clang.arc.copy_on_escape 13 // CHECK-NOHEAP-NOT: @llvm.objc.retainBlock( 14 // CHECK: ret void 15} 16 17void test1(int i) { 18 id block = ^{ use_int(i); }; 19 // CHECK-LABEL: define {{.*}}void @test1( 20 // CHECK-HEAP: call {{.*}}ptr @llvm.objc.retainBlock(ptr {{%.*}}) [[NUW]] 21 // CHECK-NOHEAP: call {{.*}}ptr @llvm.objc.retainBlock(ptr {{%.*}}) [[NUW:#[0-9]+]] 22 // CHECK-NOT: !clang.arc.copy_on_escape 23 // CHECK: ret void 24} 25 26// CHECK: attributes [[NUW]] = { nounwind } 27