Mercurial > hg > CbC > CbC_llvm
diff clang/test/CodeGen/catch-implicit-integer-conversions-basics.c @ 150:1d019706d866
LLVM10
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 15:10:13 +0900 |
parents | |
children | c4bab56944e8 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/clang/test/CodeGen/catch-implicit-integer-conversions-basics.c Thu Feb 13 15:10:13 2020 +0900 @@ -0,0 +1,125 @@ +// RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -fsanitize-recover=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// Test plan: +// * Two types - int and char +// * Two signs - signed and unsigned +// * Square that - we have input and output types. +// Thus, there are total of (2*2)^2 == 16 tests. +// These are all the possible variations/combinations of casts. +// However, not all of them should result in the check. +// So here, we *only* check which should and which should not result in checks. + +// CHECK-DAG: @[[LINE_500_UNSIGNED_TRUNCATION:.*]] = {{.*}}, i32 500, i32 10 }, {{.*}}, {{.*}}, i8 1 } +// CHECK-DAG: @[[LINE_900_SIGN_CHANGE:.*]] = {{.*}}, i32 900, i32 10 }, {{.*}}, {{.*}}, i8 3 } +// CHECK-DAG: @[[LINE_1000_SIGN_CHANGE:.*]] = {{.*}}, i32 1000, i32 10 }, {{.*}}, {{.*}}, i8 3 } +// CHECK-DAG: @[[LINE_1100_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 1100, i32 10 }, {{.*}}, {{.*}}, i8 2 } +// CHECK-DAG: @[[LINE_1200_SIGN_CHANGE:.*]] = {{.*}}, i32 1200, i32 10 }, {{.*}}, {{.*}}, i8 3 } +// CHECK-DAG: @[[LINE_1300_SIGN_CHANGE:.*]] = {{.*}}, i32 1300, i32 10 }, {{.*}}, {{.*}}, i8 3 } +// CHECK-DAG: @[[LINE_1400_SIGN_CHANGE:.*]] = {{.*}}, i32 1400, i32 10 }, {{.*}}, {{.*}}, i8 3 } +// CHECK-DAG: @[[LINE_1500_SIGNED_TRUNCATION_OR_SIGN_CHANGE:.*]] = {{.*}}, i32 1500, i32 10 }, {{.*}}, {{.*}}, i8 4 } +// CHECK-DAG: @[[LINE_1600_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 1600, i32 10 }, {{.*}}, {{.*}}, i8 2 } + +// CHECK-LABEL: @convert_unsigned_int_to_unsigned_int +unsigned int convert_unsigned_int_to_unsigned_int(unsigned int x) { +#line 100 + return x; +} + +// CHECK-LABEL: @convert_unsigned_char_to_unsigned_char +unsigned char convert_unsigned_char_to_unsigned_char(unsigned char x) { +#line 200 + return x; +} + +// CHECK-LABEL: @convert_signed_int_to_signed_int +signed int convert_signed_int_to_signed_int(signed int x) { +#line 300 + return x; +} + +// CHECK-LABEL: @convert_signed_char_to_signed_char +signed char convert_signed_char_to_signed_char(signed char x) { +#line 400 + return x; +} + +// CHECK-LABEL: @convert_unsigned_int_to_unsigned_char +unsigned char convert_unsigned_int_to_unsigned_char(unsigned int x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500_UNSIGNED_TRUNCATION]] to i8*) +#line 500 + return x; +} + +// CHECK-LABEL: @convert_unsigned_char_to_unsigned_int +unsigned int convert_unsigned_char_to_unsigned_int(unsigned char x) { +#line 600 + return x; +} + +// CHECK-LABEL: @convert_unsigned_char_to_signed_int +signed int convert_unsigned_char_to_signed_int(unsigned char x) { +#line 700 + return x; +} + +// CHECK-LABEL: @convert_signed_char_to_signed_int +signed int convert_signed_char_to_signed_int(signed char x) { +#line 800 + return x; +} + +// CHECK-LABEL: @convert_unsigned_int_to_signed_int +signed int convert_unsigned_int_to_signed_int(unsigned int x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900_SIGN_CHANGE]] to i8*) +#line 900 + return x; +} + +// CHECK-LABEL: @convert_signed_int_to_unsigned_int +unsigned int convert_signed_int_to_unsigned_int(signed int x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000_SIGN_CHANGE]] to i8*) +#line 1000 + return x; +} + +// CHECK-LABEL: @convert_signed_int_to_unsigned_char +unsigned char convert_signed_int_to_unsigned_char(signed int x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100_SIGNED_TRUNCATION]] to i8*) +#line 1100 + return x; +} + +// CHECK-LABEL: @convert_signed_char_to_unsigned_char +unsigned char convert_signed_char_to_unsigned_char(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200_SIGN_CHANGE]] to i8*) +#line 1200 + return x; +} + +// CHECK-LABEL: @convert_unsigned_char_to_signed_char +signed char convert_unsigned_char_to_signed_char(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300_SIGN_CHANGE]] to i8*) +#line 1300 + return x; +} + +// CHECK-LABEL: @convert_signed_char_to_unsigned_int +unsigned int convert_signed_char_to_unsigned_int(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400_SIGN_CHANGE]] to i8*) +#line 1400 + return x; +} + +// CHECK-LABEL: @convert_unsigned_int_to_signed_char +signed char convert_unsigned_int_to_signed_char(unsigned int x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500_SIGNED_TRUNCATION_OR_SIGN_CHANGE]] to i8*) +#line 1500 + return x; +} + +// CHECK-LABEL: @convert_signed_int_to_signed_char +signed char convert_signed_int_to_signed_char(signed int x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600_SIGNED_TRUNCATION]] to i8*) +#line 1600 + return x; +}