derek.holloway
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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
// RUN: %clang -target x86_64-apple-darwin -emit-llvm -S -o - %s | FileCheck %s
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// RUN: %clang -target x86_64-apple-darwin -emit-llvm -S -o - %s -fstack-protector | FileCheck %s
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// RUN: %clang -target x86_64-apple-darwin -emit-llvm -S -o - %s -fstack-protector-all | FileCheck %s
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// RUN: %clang -target x86_64-apple-darwin -emit-llvm -Xclang -verify -fstack-protector-all %s -o %t -c
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typedef __SIZE_TYPE__ size_t;
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int printf(const char * _Format, ...);
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char *strcpy(char *s1, const char *s2);
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struct S {
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S();
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int a[4];
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};
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// CHECK: define {{.*}} @_Z5test1PKc
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// CHECK: %{{.*}} = alloca [1000 x i8], align {{.*}}, !stack-protector ![[A:.*]]
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void test1(const char *msg) {
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__attribute__((stack_protector_ignore))
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char a[1000]; // expected-warning {{'stack_protector_ignore' attribute ignored due to '-fstack-protector-all' option}}
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strcpy(a, msg);
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printf("%s\n", a);
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}
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// CHECK: define {{.*}} @_Z5test2
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// CHECK-NOT: %{{.*}} = alloca [1000 x i8], align {{.*}}, !stack-protector
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void test2(const char *msg) {
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char b[1000];
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strcpy(b, msg);
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printf("%s\n", b);
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}
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// CHECK: define {{.*}} @_Z5test3v
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// CHECK: %{{.*}} = alloca %struct.S, align {{.*}}, !stack-protector ![[A:.*]]
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S test3() {
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__attribute__((stack_protector_ignore))
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S s; // expected-warning {{'stack_protector_ignore' attribute ignored due to '-fstack-protector-all' option}}
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return s;
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}
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// CHECK: define {{.*}} @_Z5test4b
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// CHECK: %{{.*}} = alloca %struct.S, align {{.*}}, !stack-protector ![[A:.*]]
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// CHECK: call void @_ZN1SC1Ev
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S test4(bool b) {
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__attribute__((stack_protector_ignore))
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S s; // expected-warning {{'stack_protector_ignore' attribute ignored due to '-fstack-protector-all' option}}
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if ( b )
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return s;
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else
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return s;
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}
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// CHECK: define {{.*}} @_Z5test5b
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// CHECK: %{{.*}} = alloca %struct.S, align {{.*}}
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// CHECK-NOT: stack-protector
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// CHECK: %{{.*}} = alloca %struct.S, align {{.*}}, !stack-protector ![[A:.*]]
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// CHECK: %{{.*}} = alloca %struct.S, align {{.*}}
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// CHECK-NOT: stack-protector
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// CHECK: call void @_ZN1SC1Ev
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// CHECK: call void @_ZN1SC1Ev
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S test5(bool b) {
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__attribute__((stack_protector_ignore))
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S s1; // expected-warning {{'stack_protector_ignore' attribute ignored due to '-fstack-protector-all' option}}
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S s2;
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if ( b )
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return s1;
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else
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return s2;
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}
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// CHECK: ![[A]] = !{i32 0}
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