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// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=WITHOUT %s | ||
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=type | FileCheck -check-prefix=TYSAN %s | ||
// RUN: echo "src:%s" | sed -e 's/\\/\\\\/g' > %t | ||
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=type -fsanitize-blacklist=%t | FileCheck -check-prefix=BL %s | ||
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// The sanitize_type attribute should be attached to functions | ||
// when TypeSanitizer is enabled, unless no_sanitize("type") attribute | ||
// is present. | ||
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// WITHOUT: NoTYSAN1{{.*}}) [[NOATTR:#[0-9]+]] | ||
// BL: NoTYSAN1{{.*}}) [[NOATTR:#[0-9]+]] | ||
// TYSAN: NoTYSAN1{{.*}}) [[NOATTR:#[0-9]+]] | ||
__attribute__((no_sanitize("type"))) int NoTYSAN1(int *a) { return *a; } | ||
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// WITHOUT: NoTYSAN2{{.*}}) [[NOATTR]] | ||
// BL: NoTYSAN2{{.*}}) [[NOATTR]] | ||
// TYSAN: NoTYSAN2{{.*}}) [[NOATTR]] | ||
__attribute__((no_sanitize("type"))) int NoTYSAN2(int *a); | ||
int NoTYSAN2(int *a) { return *a; } | ||
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// WITHOUT: NoTYSAN3{{.*}}) [[NOATTR:#[0-9]+]] | ||
// BL: NoTYSAN3{{.*}}) [[NOATTR:#[0-9]+]] | ||
// TYSAN: NoTYSAN3{{.*}}) [[NOATTR:#[0-9]+]] | ||
__attribute__((no_sanitize("type"))) int NoTYSAN3(int *a) { return *a; } | ||
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// WITHOUT: TYSANOk{{.*}}) [[NOATTR]] | ||
// BL: TYSANOk{{.*}}) [[NOATTR]] | ||
// TYSAN: TYSANOk{{.*}}) [[WITH:#[0-9]+]] | ||
int TYSANOk(int *a) { return *a; } | ||
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// WITHOUT: TemplateTYSANOk{{.*}}) [[NOATTR]] | ||
// BL: TemplateTYSANOk{{.*}}) [[NOATTR]] | ||
// TYSAN: TemplateTYSANOk{{.*}}) [[WITH]] | ||
template <int i> | ||
int TemplateTYSANOk() { return i; } | ||
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// WITHOUT: TemplateNoTYSAN{{.*}}) [[NOATTR]] | ||
// BL: TemplateNoTYSAN{{.*}}) [[NOATTR]] | ||
// TYSAN: TemplateNoTYSAN{{.*}}) [[NOATTR]] | ||
template <int i> | ||
__attribute__((no_sanitize("type"))) int TemplateNoTYSAN() { return i; } | ||
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int force_instance = TemplateTYSANOk<42>() + TemplateNoTYSAN<42>(); | ||
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// Check that __cxx_global_var_init* get the sanitize_type attribute. | ||
int global1 = 0; | ||
int global2 = *(int *)((char *)&global1 + 1); | ||
// WITHOUT: @__cxx_global_var_init{{.*}}[[NOATTR:#[0-9]+]] | ||
// BL: @__cxx_global_var_init{{.*}}[[NOATTR:#[0-9]+]] | ||
// TYSAN: @__cxx_global_var_init{{.*}}[[WITH:#[0-9]+]] | ||
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// Make sure that we don't add globals to the list for which we don't have a | ||
// specific type description. | ||
// FIXME: We now have a type description for this type and a global is added. Should it? | ||
struct SX { | ||
int a, b; | ||
}; | ||
SX sx; | ||
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// WITHOUT: attributes [[NOATTR]] = { noinline nounwind{{.*}} } | ||
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// BL: attributes [[NOATTR]] = { noinline nounwind{{.*}} } | ||
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// TYSAN: attributes [[NOATTR]] = { mustprogress noinline nounwind{{.*}} } | ||
// TYSAN: attributes [[WITH]] = { noinline nounwind sanitize_type{{.*}} } | ||
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// TYSAN-DAG: !llvm.tysan.globals = !{[[G1MD:![0-9]+]], [[G2MD:![0-9]+]], [[G3MD:![0-9]+]], [[SXMD:![0-9]+]]} | ||
// TYSAN-DAG: [[G1MD]] = !{ptr @force_instance, [[INTMD:![0-9]+]]} | ||
// TYSAN-DAG: [[INTMD]] = !{!"int", | ||
// TYSAN-DAG: [[G2MD]] = !{ptr @global1, [[INTMD]]} | ||
// TYSAN-DAG: [[G3MD]] = !{ptr @global2, [[INTMD]]} | ||
// TYSAN-DAG: [[SXMD]] = !{ptr @sx, [[SXTYMD:![0-9]+]]} | ||
// TYSAN-DAG: [[SXTYMD]] = !{!"_ZTS2SX", [[INTMD]], i64 0, !1, i64 4} | ||
// TYSAN-DAG: Simple C++ TBAA |