derek.holloway
7502bf64a4
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36 lines
1.5 KiB
C
36 lines
1.5 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-icall -fsanitize-trap=cfi-icall -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=UNGENERALIZED %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-icall -fsanitize-trap=cfi-icall -fsanitize-cfi-icall-generalize-pointers -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=GENERALIZED %s
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// Test that const char* is generalized to const ptr and that char** is
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// generalized to ptr
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// CHECK: define{{.*}} ptr @f({{.*}} !type [[TYPE:![0-9]+]] !type [[TYPE_GENERALIZED:![0-9]+]]
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int** f(const char *a, const char **b) {
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return (int**)0;
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}
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void g(int** (*fp)(const char *, const char **)) {
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// UNGENERALIZED: call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSFPPiPKcPS2_E")
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// GENERALIZED: call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSFPvPKvS_E.generalized")
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fp(0, 0);
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}
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union Union {
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char *c;
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long *n;
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} __attribute__((transparent_union));
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// CHECK: define{{.*}} void @uni({{.*}} !type [[TYPE2:![0-9]+]] !type [[TYPE2_GENERALIZED:![0-9]+]]
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void uni(void (*fn)(union Union), union Union arg1) {
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// UNGENERALIZED: call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSFvPcE")
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// GENERALIZED: call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSFvPvE.generalized")
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fn(arg1);
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}
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// CHECK: [[TYPE]] = !{i64 0, !"_ZTSFPPiPKcPS2_E"}
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// CHECK: [[TYPE_GENERALIZED]] = !{i64 0, !"_ZTSFPvPKvS_E.generalized"}
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// CHECK: [[TYPE2]] = !{i64 0, !"_ZTSFvPFv5UnionEPcE"}
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// CHECK: [[TYPE2_GENERALIZED]] = !{i64 0, !"_ZTSFvPvS_E.generalized"}
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