mirror of
https://github.com/llvm/llvm-project.git
synced 2025-05-14 10:56:07 +00:00
8e57b07f66
from those that aren't. This patch changes the way __block variables that aren't captured by escaping blocks are handled: - Since non-escaping blocks on the stack never get copied to the heap (see https://reviews.llvm.org/D49303), Sema shouldn't error out when the type of a non-escaping __block variable doesn't have an accessible copy constructor. - IRGen doesn't have to use the specialized byref structure (see https://clang.llvm.org/docs/Block-ABI-Apple.html#id8) for a non-escaping __block variable anymore. Instead IRGen can emit the variable as a normal variable and copy the reference to the block literal. Byref copy/dispose helpers aren't needed either. This reapplies r343518 after fixing a use-after-free bug in function Sema::ActOnBlockStmtExpr where the BlockScopeInfo was dereferenced after it was popped and deleted. rdar://problem/39352313 Differential Revision: https://reviews.llvm.org/D51564 llvm-svn: 343542
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s -fexceptions -fblocks | FileCheck %s
|
|
// RUN: %clang_cc1 -triple armv7-apple-unknown -emit-llvm -o - %s -fexceptions -fsjlj-exceptions -fblocks | FileCheck %s -check-prefix=CHECK-ARM
|
|
|
|
// rdar://problem/8621849
|
|
void test1() {
|
|
extern void test1_helper(void (^)(int));
|
|
|
|
// CHECK-LABEL: define void @test1() {{.*}} personality i8* bitcast (i32 (...)* @__gcc_personality_v0 to i8*)
|
|
// CHECK-ARM-LABEL: define arm_aapcscc void @test1() {{.*}} personality i8* bitcast (i32 (...)* @__gcc_personality_sj0 to i8*)
|
|
|
|
__block int x = 10;
|
|
|
|
// CHECK: invoke void @test1_helper(
|
|
// CHECK-ARM: invoke arm_aapcscc void @test1_helper(
|
|
test1_helper(^(int v) { x = v; });
|
|
|
|
// CHECK: landingpad { i8*, i32 }
|
|
// CHECK-NEXT: cleanup
|
|
// CHECK-ARM: landingpad { i8*, i32 }
|
|
// CHECK-ARM-NEXT: cleanup
|
|
}
|
|
|
|
void test2_helper();
|
|
void test2() {
|
|
__block int x = 10;
|
|
^{ (void)x; };
|
|
test2_helper(5, 6, 7);
|
|
}
|
|
void test2_helper(int x, int y) {
|
|
}
|
|
// CHECK: invoke void @test2_helper(i32 5, i32 6)
|