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d791e92b5f
This patch uses the infrastructure added in r326307 for enabling non-trivial fields to be declared in C structs to allow __weak fields in C structs in ARC. This recommits r327206, which was reverted because it caused module-enabled builders to fail. I discovered that the CXXRecordDecl::CanPassInRegisters flag wasn't being set correctly in some cases after I moved it to RecordDecl. Thanks to Eric Liu for helping me investigate the bug. rdar://problem/33599681 https://reviews.llvm.org/D44095 llvm-svn: 327870
63 lines
1.9 KiB
Objective-C
63 lines
1.9 KiB
Objective-C
// RUN: %clang_cc1 -triple arm64-apple-ios11 -fobjc-arc -fblocks -fobjc-runtime=ios-11.0 -fobjc-exceptions -fexceptions -emit-llvm -o - %s | FileCheck %s
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// CHECK: %[[STRUCT_STRONG:.*]] = type { i32, i8* }
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// CHECK: %[[STRUCT_WEAK:.*]] = type { i32, i8* }
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typedef struct {
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int i;
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id f1;
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} Strong;
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typedef struct {
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int i;
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__weak id f1;
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} Weak;
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// CHECK: define void @testStrongException()
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// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_STRONG]], align 8
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// CHECK: %[[AGG_TMP1:.*]] = alloca %[[STRUCT_STRONG]], align 8
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// CHECK: %[[CALL:.*]] = call [2 x i64] @genStrong()
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// CHECK: %[[V0:.*]] = bitcast %[[STRUCT_STRONG]]* %[[AGG_TMP]] to [2 x i64]*
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// CHECK: store [2 x i64] %[[CALL]], [2 x i64]* %[[V0]], align 8
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// CHECK: invoke [2 x i64] @genStrong()
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// CHECK: call void @calleeStrong([2 x i64] %{{.*}}, [2 x i64] %{{.*}})
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// CHECK-NEXT: ret void
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// CHECK: landingpad { i8*, i32 }
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// CHECK: %[[V9:.*]] = bitcast %[[STRUCT_STRONG]]* %[[AGG_TMP]] to i8**
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// CHECK: call void @__destructor_8_s8(i8** %[[V9]])
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// CHECK: br label
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// CHECK: resume
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Strong genStrong(void);
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void calleeStrong(Strong, Strong);
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void testStrongException(void) {
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calleeStrong(genStrong(), genStrong());
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}
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// CHECK: define void @testWeakException()
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// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_WEAK]], align 8
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// CHECK: %[[AGG_TMP1:.*]] = alloca %[[STRUCT_WEAK]], align 8
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// CHECK: call void @genWeak(%[[STRUCT_WEAK]]* sret %[[AGG_TMP]])
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// CHECK: invoke void @genWeak(%[[STRUCT_WEAK]]* sret %[[AGG_TMP1]])
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// CHECK: call void @calleeWeak(%[[STRUCT_WEAK]]* %[[AGG_TMP]], %[[STRUCT_WEAK]]* %[[AGG_TMP1]])
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// CHECK: ret void
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// CHECK: landingpad { i8*, i32 }
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// CHECK: %[[V3:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_TMP]] to i8**
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// CHECK: call void @__destructor_8_w8(i8** %[[V3]])
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// CHECK: br label
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// CHECK: resume
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Weak genWeak(void);
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void calleeWeak(Weak, Weak);
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void testWeakException(void) {
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calleeWeak(genWeak(), genWeak());
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}
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