forked from OSchip/llvm-project
150 lines
5.2 KiB
C++
150 lines
5.2 KiB
C++
// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK
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// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER
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// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER
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// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-trap=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP
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extern "C" { // Disable name mangling.
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// ========================================================================== //
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// The expected true-negatives.
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// ========================================================================== //
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// Sanitization is explicitly disabled.
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// ========================================================================== //
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// CHECK-LABEL: @blacklist_0
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__attribute__((no_sanitize("undefined"))) unsigned int blacklist_0(signed int src) {
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// We are not in "undefined" group, so that doesn't work.
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// CHECK-SANITIZE: call
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// CHECK: }
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return src;
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}
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// CHECK-LABEL: @blacklist_1
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__attribute__((no_sanitize("integer"))) unsigned int blacklist_1(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return src;
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}
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// CHECK-LABEL: @blacklist_2
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__attribute__((no_sanitize("implicit-conversion"))) unsigned int blacklist_2(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return src;
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}
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// CHECK-LABEL: @blacklist_3
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__attribute__((no_sanitize("implicit-integer-sign-change"))) unsigned int blacklist_3(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return src;
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}
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// Explicit sign-changing conversions.
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// ========================================================================== //
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// CHECK-LABEL: @explicit_signed_int_to_unsigned_int
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unsigned int explicit_signed_int_to_unsigned_int(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return (unsigned int)src;
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}
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// CHECK-LABEL: @explicit_unsigned_int_to_signed_int
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signed int explicit_unsigned_int_to_signed_int(unsigned int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return (signed int)src;
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}
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// Explicit NOP conversions.
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// ========================================================================== //
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// CHECK-LABEL: @explicit_unsigned_int_to_unsigned_int
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unsigned int explicit_unsigned_int_to_unsigned_int(unsigned int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return (unsigned int)src;
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}
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// CHECK-LABEL: @explicit_signed_int_to_signed_int
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signed int explicit_signed_int_to_signed_int(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return (signed int)src;
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}
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// Explicit functional sign-changing casts.
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// ========================================================================== //
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using UnsignedInt = unsigned int;
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using SignedInt = signed int;
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// CHECK-LABEL: explicit_functional_unsigned_int_to_signed_int
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signed int explicit_functional_unsigned_int_to_signed_int(unsigned int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return SignedInt(src);
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}
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// CHECK-LABEL: @explicit_functional_signed_int_to_unsigned_int
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unsigned int explicit_functional_signed_int_to_unsigned_int(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return UnsignedInt(src);
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}
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// Explicit functional NOP casts.
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// ========================================================================== //
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// CHECK-LABEL: @explicit_functional_unsigned_int_to_unsigned_int
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unsigned int explicit_functional_unsigned_int_to_unsigned_int(unsigned int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return UnsignedInt(src);
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}
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// CHECK-LABEL: @explicit_functional_signed_int_to_signed_int
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signed int explicit_functional_signed_int_to_signed_int(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return SignedInt(src);
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}
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// Explicit C++-style sign-changing casts.
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// ========================================================================== //
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// CHECK-LABEL: @explicit_cppstyle_unsigned_int_to_signed_int
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signed int explicit_cppstyle_unsigned_int_to_signed_int(unsigned int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return static_cast<signed int>(src);
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}
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// CHECK-LABEL: @explicit_cppstyle_signed_int_to_unsigned_int
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unsigned int explicit_cppstyle_signed_int_to_unsigned_int(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return static_cast<unsigned int>(src);
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}
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// Explicit C++-style casts NOP casts.
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// ========================================================================== //
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// CHECK-LABEL: @explicit_cppstyle_unsigned_int_to_unsigned_int
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unsigned int explicit_cppstyle_unsigned_int_to_unsigned_int(unsigned int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return static_cast<unsigned int>(src);
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}
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// CHECK-LABEL: @explicit_cppstyle_signed_int_to_signed_int
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signed int explicit_cppstyle_signed_int_to_signed_int(signed int src) {
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// CHECK-SANITIZE-NOT: call
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// CHECK: }
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return static_cast<signed int>(src);
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}
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} // extern "C"
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