8db0dbbe2c
copy/dispose helper functions
We found out that these fake functions would cause clang to crash if the
changes proposed in https://reviews.llvm.org/D98799 were made.
The original patch was reverted in f681fd927e
because debug locations were missing in the body of the block byref
helper functions. This patch fixes the bug by calling CreateArtificial
after the calls to StartFunction.
Differential Revision: https://reviews.llvm.org/D104082
50 lines
1.9 KiB
Objective-C
50 lines
1.9 KiB
Objective-C
// RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -debug-info-kind=limited -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
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// CHECK: define internal void @__Block_byref_object_copy_({{.*}} !dbg ![[BYREF_COPY_SP:.*]] {
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// CHECK: getelementptr inbounds {{.*}}, !dbg ![[BYREF_COPY_LOC:.*]]
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// CHECK: !DILocalVariable(name: "foo", {{.*}}type: ![[FOOTY:[0-9]+]])
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// CHECK: ![[FOOTY]] = {{.*}}!DICompositeType({{.*}}, name: "Foo"
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// CHECK-NOT: DIFlagBlockByrefStruct
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// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_1",
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// CHECK-SAME: size: 320, elements: ![[BL_ELTS:[0-9]+]])
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// CHECK: ![[BL_ELTS]] = !{{.*}}![[WFOO:[0-9]+]]}
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// Test that the foo is aligned at an 8 byte boundary in the DWARF
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// expression (256) that locates it inside of the byref descriptor:
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// CHECK: ![[WFOO]] = !DIDerivedType(tag: DW_TAG_member, name: "foo",
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// CHECK-SAME: baseType: ![[PTR:[0-9]+]]
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// CHECK-SAME: offset: 256)
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// CHECK: ![[PTR]] = !DIDerivedType(tag: DW_TAG_pointer_type,
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// CHECK-SAME: baseType: ![[WRAPPER:[0-9]+]]
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// CHECK: ![[WRAPPER]] = !DICompositeType(tag: DW_TAG_structure_type, scope:
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// CHECK: elements: ![[WR_ELTS:[0-9]+]])
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// CHECK: ![[WR_ELTS]] = !{{.*}}![[WFOO:[0-9]+]]}
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// CHECK: ![[WFOO]] = !DIDerivedType(tag: DW_TAG_member, name: "foo",
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// CHECK-SAME: baseType: ![[FOOTY]]
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// CHECK: !DILocalVariable(name: "foo", {{.*}}type: ![[FOOTY]])
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// CHECK: ![[BYREF_COPY_SP]] = distinct !DISubprogram(linkageName: "__Block_byref_object_copy_",
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// CHECK: ![[BYREF_COPY_LOC]] = !DILocation(line: 0, scope: ![[BYREF_COPY_SP]])
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struct Foo {
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unsigned char *data;
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};
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struct Foo2 {
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id f0;
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};
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void (^bptr)(void);
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int func() {
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__attribute__((__blocks__(byref))) struct Foo foo;
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^{ foo.data = 0; }();
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__block struct Foo2 foo2;
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bptr = ^{ foo2.f0 =0; };
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return 0;
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}
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