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155e26f0f4
In https://bugs.llvm.org/show_bug.cgi?id=41206 we observe bad codegen when embedding a non-trivial C struct within a C struct. This is due to the fact that name mangling for non-trivial structs marks the two structs as identical. This diff contains a fix for this issue. Patch by Dan Zimmerman <daniel.zimmerman@me.com>. Differential Revision: https://reviews.llvm.org/D59873 llvm-svn: 357184
45 lines
1.3 KiB
Objective-C
45 lines
1.3 KiB
Objective-C
// RUN: %clang_cc1 -triple arm64-apple-ios11 -fobjc-arc -emit-llvm -o - %s | FileCheck %s
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@class I;
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typedef struct {
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I *name;
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} Foo;
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typedef struct {
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Foo foo;
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} Bar;
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typedef struct {
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Bar bar;
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} Baz;
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I *getI();
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void f() {
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Foo foo = {getI()};
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Bar bar = {foo};
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Baz baz = {bar};
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}
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// CHECK: define linkonce_odr hidden void @__destructor_8_S_S_s0(i8** %[[DST:.*]])
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// CHECK: %[[DST_ADDR:.*]] = alloca i8**, align 8
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// CHECK: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
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// CHECK: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
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// CHECK: call void @__destructor_8_S_s0(i8** %[[V0]])
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// CHECK: ret void
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// CHECK: define linkonce_odr hidden void @__destructor_8_S_s0(i8** %[[DST:.*]])
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// CHECK: %[[DST_ADDR:.*]] = alloca i8**, align 8
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// CHECK: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
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// CHECK: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
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// CHECK: call void @__destructor_8_s0(i8** %[[V0]])
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// CHECK: ret void
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// CHECK: define linkonce_odr hidden void @__destructor_8_s0(i8** %dst)
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// CHECK: %[[DST_ADDR:.*]] = alloca i8**, align 8
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// CHECK: store i8** %[[DST]], i8*** %[[DST_ADDR]], align 8
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// CHECK: %[[V0:.*]] = load i8**, i8*** %[[DST_ADDR]], align 8
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// CHECK: call void @llvm.objc.storeStrong(i8** %[[V0]], i8* null)
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// CHECK: ret void
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