File: arc-unoptimized-byref-var.m

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (17 lines) | stat: -rw-r--r-- 898 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-UNOPT %s
// rdar://12530881

void test19() {
   __block id x;
   ^{ (void)x; };
// CHECK-UNOPT-LABEL: define internal void @__Block_byref_object_copy
// CHECK-UNOPT: [[X:%.*]] = getelementptr inbounds [[BYREF_T:%.*]], [[BYREF_T:%.*]]* [[VAR:%.*]], i32 0, i32 6
// CHECK-UNOPT: [[X2:%.*]] = getelementptr inbounds [[BYREF_T:%.*]], [[BYREF_T:%.*]]* [[VAR1:%.*]], i32 0, i32 6
// CHECK-UNOPT-NEXT: [[SIX:%.*]] = load i8*, i8** [[X2]], align 8
// CHECK-UNOPT-NEXT: store i8* null, i8** [[X]], align 8
// CHECK-UNOPT-NEXT: call void @llvm.objc.storeStrong(i8** [[X]], i8* [[SIX]]) [[NUW:#[0-9]+]]
// CHECK-UNOPT-NEXT: call void @llvm.objc.storeStrong(i8** [[X2]], i8* null) [[NUW]]
// CHECK-UNOPT-NEXT: ret void
}

// CHECK: attributes [[NUW]] = { nounwind }