351241c83e
CodeGen-level implementation. Instead of adding an attribute to clang's FunctionDecl, add the IR attribute directly. This means a module built with this flag is now compatible with code built without it and vice versa. This change also results in the 'noalias' attribute no longer being added to calls to operator new in the IR; it's now only added to the declaration. It also fixes a bug where we failed to add the attribute to the 'nothrow' versions (because we didn't implicitly declare them, there was no good time to inject a fake attribute). llvm-svn: 265728
105 lines
3.8 KiB
Plaintext
105 lines
3.8 KiB
Plaintext
// RUN: %clang_cc1 -fobjc-arc -fobjc-runtime-has-weak -fblocks -triple x86_64-apple-darwin10.0.0 -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK -check-prefix=UNOPT
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// RUN: %clang_cc1 -fobjc-arc -fobjc-runtime-has-weak -fblocks -triple x86_64-apple-darwin10.0.0 -emit-llvm -o - %s -O -disable-llvm-optzns | FileCheck %s -check-prefix=CHECK -check-prefix=OPT
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typedef __strong id strong_id;
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typedef __weak id weak_id;
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// CHECK-LABEL: define void @_Z8test_newP11objc_object
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void test_new(id invalue) {
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// CHECK: [[INVALUEADDR:%.*]] = alloca i8*
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// UNOPT-NEXT: store i8* null, i8** [[INVALUEADDR]]
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// UNOPT-NEXT: call void @objc_storeStrong(i8** [[INVALUEADDR]], i8* [[INVALUE:%.*]])
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// OPT-NEXT: [[T0:%.*]] = call i8* @objc_retain(i8* [[INVALUE:%.*]])
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// OPT-NEXT: store i8* [[T0]], i8** [[INVALUEADDR]]
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// CHECK: call i8* @_Znwm
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// CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
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// CHECK-NEXT: store i8* null, i8**
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new strong_id;
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// CHECK: call i8* @_Znwm
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// CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
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// UNOPT-NEXT: store i8* null, i8**
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// OPT-NEXT: call i8* @objc_initWeak(i8** {{.*}}, i8* null)
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new weak_id;
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// CHECK: call i8* @_Znwm
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// CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
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// CHECK-NEXT: store i8* null, i8**
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new __strong id;
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// CHECK: call i8* @_Znwm
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// CHECK-NEXT: {{bitcast i8\*.*to i8\*\*}}
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// UNOPT-NEXT: store i8* null, i8**
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// OPT-NEXT: call i8* @objc_initWeak(i8** {{.*}}, i8* null)
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new __weak id;
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// CHECK: call i8* @_Znwm
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// CHECK: call i8* @objc_retain
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// CHECK: store i8*
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new __strong id(invalue);
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// CHECK: call i8* @_Znwm
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// CHECK: call i8* @objc_initWeak
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new __weak id(invalue);
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// UNOPT: call void @objc_storeStrong
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// OPT: call void @objc_release
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// CHECK: ret void
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}
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// CHECK-LABEL: define void @_Z14test_array_new
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void test_array_new() {
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// CHECK: call i8* @_Znam
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// CHECK: store i64 17, i64*
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// CHECK: call void @llvm.memset.p0i8.i64
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new strong_id[17];
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// CHECK: call i8* @_Znam
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// CHECK: store i64 17, i64*
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// CHECK: call void @llvm.memset.p0i8.i64
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new weak_id[17];
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// CHECK: ret void
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}
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// CHECK-LABEL: define void @_Z11test_deletePU8__strongP11objc_objectPU6__weakS0_
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void test_delete(__strong id *sptr, __weak id *wptr) {
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// CHECK: br i1
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// UNOPT: call void @objc_storeStrong(i8** {{.*}}, i8* null)
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// OPT: load i8*, i8**
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// OPT-NEXT: call void @objc_release
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// CHECK: call void @_ZdlPv
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delete sptr;
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// CHECK: call void @objc_destroyWeak
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// CHECK: call void @_ZdlPv
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delete wptr;
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// CHECK: ret void
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}
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// CHECK-LABEL: define void @_Z17test_array_deletePU8__strongP11objc_objectPU6__weakS0_
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void test_array_delete(__strong id *sptr, __weak id *wptr) {
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// CHECK: icmp eq i8** [[BEGIN:%.*]], null
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// CHECK: [[LEN:%.*]] = load i64, i64* {{%.*}}
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// CHECK: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 [[LEN]]
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// CHECK-NEXT: icmp eq i8** [[BEGIN]], [[END]]
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// CHECK: [[PAST:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]],
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// CHECK-NEXT: [[CUR]] = getelementptr inbounds i8*, i8** [[PAST]], i64 -1
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// UNOPT-NEXT: call void @objc_storeStrong(i8** [[CUR]], i8* null)
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// OPT-NEXT: [[T0:%.*]] = load i8*, i8** [[CUR]]
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// OPT-NEXT: objc_release(i8* [[T0]])
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// CHECK-NEXT: icmp eq i8** [[CUR]], [[BEGIN]]
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// CHECK: call void @_ZdaPv
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delete [] sptr;
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// CHECK: icmp eq i8** [[BEGIN:%.*]], null
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// CHECK: [[LEN:%.*]] = load i64, i64* {{%.*}}
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// CHECK: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 [[LEN]]
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// CHECK-NEXT: icmp eq i8** [[BEGIN]], [[END]]
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// CHECK: [[PAST:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]],
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// CHECK-NEXT: [[CUR]] = getelementptr inbounds i8*, i8** [[PAST]], i64 -1
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// CHECK-NEXT: call void @objc_destroyWeak(i8** [[CUR]])
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// CHECK-NEXT: icmp eq i8** [[CUR]], [[BEGIN]]
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// CHECK: call void @_ZdaPv
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delete [] wptr;
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}
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