File: arc-unoptimized-byref-var.m

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.6-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,245,028 kB
  • sloc: cpp: 7,619,726; ansic: 1,434,018; asm: 1,058,748; python: 252,740; f90: 94,671; objc: 70,685; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,675; awk: 3,523; javascript: 2,409; xml: 892; fortran: 770
file content (16 lines) | stat: -rw-r--r-- 861 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
// 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

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

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