1b1c8d83d3
Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
125 lines
2.7 KiB
Plaintext
125 lines
2.7 KiB
Plaintext
// RUN: %clang_cc1 -fobjc-gc -emit-llvm -triple x86_64-apple-darwin10.0.0 -fobjc-runtime=macosx-fragile-10.5 -o - %s | FileCheck %s -check-prefix=CHECK-OBJ
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// RUN: %clang_cc1 -x c++ -emit-llvm -triple x86_64-apple-darwin10.0.0 -o - %s | FileCheck %s -check-prefix=CHECK-CPP
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#ifdef __OBJC__
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struct A {
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A &operator=(const A&);
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A &operator=(A&);
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};
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struct B {
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B &operator=(B&);
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};
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struct C {
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virtual C& operator=(const C&);
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};
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struct POD {
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id myobjc;
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int array[3][4];
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};
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struct CopyByValue {
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CopyByValue(const CopyByValue&);
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CopyByValue &operator=(CopyByValue);
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};
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struct D : A, B, virtual C {
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int scalar;
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int scalar_array[2][3];
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B class_member;
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C class_member_array[2][3];
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POD pod_array[2][3];
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union {
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int x;
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float f[3];
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};
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CopyByValue by_value;
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};
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void test_D(D d1, D d2) {
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d1 = d2;
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}
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// CHECK-OBJ-LABEL: define linkonce_odr noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %struct.D* @_ZN1DaSERS_
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// CHECK-OBJ: {{call.*_ZN1AaSERS_}}
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// CHECK-OBJ: {{call.*_ZN1BaSERS_}}
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// CHECK-OBJ: {{call.*_ZN1CaSERKS_}}
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// CHECK-OBJ: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 24}}
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// CHECK-OBJ: {{call.*_ZN1BaSERS_}}
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// CHECK-OBJ: br
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// CHECK-OBJ: {{call.*_ZN1CaSERKS_}}
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// CHECK-OBJ: {{call.*@objc_memmove_collectable}}
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// CHECK-OBJ: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 12}}
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// CHECK-OBJ: call void @_ZN11CopyByValueC1ERKS_
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// CHECK-OBJ: {{call.*_ZN11CopyByValueaSES_}}
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// CHECK-OBJ: ret
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#endif
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namespace PR13329 {
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#ifndef __OBJC__
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typedef void* id;
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#endif
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struct POD {
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id i;
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short s;
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};
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struct NonPOD {
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id i;
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short s;
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NonPOD();
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};
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struct DerivedNonPOD: NonPOD {
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char c;
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};
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struct DerivedPOD: POD {
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char c;
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};
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void testPOD() {
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POD a;
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POD b;
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// CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 16
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// CHECK-CPP: @llvm.memcpy{{.*}}i64 16
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b = a;
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}
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void testNonPOD() {
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NonPOD a;
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NonPOD b;
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// CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 10
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// CHECK-CPP: @llvm.memcpy{{.*}}i64 10
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b = a;
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}
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void testDerivedNonPOD() {
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DerivedNonPOD a;
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NonPOD b;
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DerivedNonPOD c;
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// CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 10
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// CHECK-CPP: @llvm.memcpy{{.*}}i64 10
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(NonPOD&) a = b;
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// CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 11
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// CHECK-CPP: @llvm.memcpy{{.*}}i64 11
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a = c;
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};
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void testDerivedPOD() {
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DerivedPOD a;
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POD b;
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DerivedPOD c;
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// CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 16
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// CHECK-CPP: @llvm.memcpy{{.*}}i64 16
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(POD&) a = b;
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// CHECK-OBJ: @objc_memmove_collectable{{.*}}i64 17
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// CHECK-CPP: @llvm.memcpy{{.*}}i64 17
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a = c;
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};
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}
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