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2e00b98027
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. rdar://problem/39352313 Differential Revision: https://reviews.llvm.org/D51564 llvm-svn: 341754
21 lines
605 B
C++
21 lines
605 B
C++
// RUN: %clang_cc1 %s -debug-info-kind=line-tables-only -fblocks -S -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 %s -debug-info-kind=line-directives-only -fblocks -S -emit-llvm -o - | FileCheck %s
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struct A {
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A();
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A(const A &);
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~A();
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};
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void test() {
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__block A a;
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^{ (void)a; };
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}
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// CHECK: !DISubprogram(name: "__Block_byref_object_copy_",
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// CHECK-SAME: line: 11,
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// CHECK-SAME: isLocal: true, isDefinition: true
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// CHECK: !DISubprogram(name: "__Block_byref_object_dispose_",
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// CHECK-SAME: line: 11,
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// CHECK-SAME: isLocal: true, isDefinition: true
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