[UBSan] Split nullptr-and-nonzero-offset-variable.cpp into C and C++ variants
I do not understand the BB failire, it fully passes locally.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@374306 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-variable.c b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-variable.c
new file mode 100644
index 0000000..31e63b7
--- /dev/null
+++ b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-variable.c
@@ -0,0 +1,41 @@
+// RUN: %clang -x c -fsanitize=pointer-overflow -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
+// RUN: %clang -x c -fsanitize=pointer-overflow -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
+// RUN: %clang -x c -fsanitize=pointer-overflow -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
+// RUN: %clang -x c -fsanitize=pointer-overflow -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
+
+// RUN: %clang -x c -fsanitize=pointer-overflow -O0 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
+// RUN: %clang -x c -fsanitize=pointer-overflow -O1 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
+// RUN: %clang -x c -fsanitize=pointer-overflow -O2 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
+// RUN: %clang -x c -fsanitize=pointer-overflow -O3 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
+
+#include <stdint.h>
+#include <stdio.h>
+
+// Just so deduplication doesn't do anything.
+static char *getelementpointer_inbounds_v0(char *base, unsigned long offset) {
+ // Potentially UB.
+ return base + offset;
+}
+static char *getelementpointer_inbounds_v1(char *base, unsigned long offset) {
+ // Potentially UB.
+ return base + offset;
+}
+
+int main(int argc, char *argv[]) {
+ char *base;
+ unsigned long offset;
+
+ base = (char *)0;
+ offset = argc - 1;
+ (void)getelementpointer_inbounds_v0(base, offset);
+ // CHECK-UB: {{.*}}.c:[[@LINE-14]]:15: runtime error: applying non-zero offset 1 to null pointer
+ // CHECK-UB-C: {{.*}}.c:[[@LINE-15]]:15: runtime error: applying zero offset to null pointer
+
+ base = (char *)(intptr_t)(argc - 1);
+ offset = argc == 1 ? 0 : -(argc - 1);
+ (void)getelementpointer_inbounds_v1(base, offset);
+ // CHECK-UB: {{.*}}.c:[[@LINE-16]]:15: runtime error: applying non-zero offset to non-null pointer {{.*}} produced null pointer
+ // CHECK-UB-C: {{.*}}.c:[[@LINE-17]]:15: runtime error: applying zero offset to null pointer
+
+ return 0;
+}
diff --git a/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-variable.cpp b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-variable.cpp
index 6c84396..2be7020 100644
--- a/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-variable.cpp
+++ b/test/ubsan/TestCases/Pointer/nullptr-and-nonzero-offset-variable.cpp
@@ -1,18 +1,8 @@
-// RUN: %clang -x c -fsanitize=pointer-overflow -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
-// RUN: %clang -x c -fsanitize=pointer-overflow -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
-// RUN: %clang -x c -fsanitize=pointer-overflow -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
-// RUN: %clang -x c -fsanitize=pointer-overflow -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB-C
-
// RUN: %clang -x c++ -fsanitize=pointer-overflow -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK
// RUN: %clang -x c++ -fsanitize=pointer-overflow -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK
// RUN: %clang -x c++ -fsanitize=pointer-overflow -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK
// RUN: %clang -x c++ -fsanitize=pointer-overflow -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK
-// RUN: %clang -x c -fsanitize=pointer-overflow -O0 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
-// RUN: %clang -x c -fsanitize=pointer-overflow -O1 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
-// RUN: %clang -x c -fsanitize=pointer-overflow -O2 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
-// RUN: %clang -x c -fsanitize=pointer-overflow -O3 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
-
// RUN: %clang -x c++ -fsanitize=pointer-overflow -O0 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
// RUN: %clang -x c++ -fsanitize=pointer-overflow -O1 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
// RUN: %clang -x c++ -fsanitize=pointer-overflow -O2 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="error:" --check-prefix=CHECK-UB
@@ -42,13 +32,11 @@
offset = argc - 1;
(void)getelementpointer_inbounds_v0(base, offset);
// CHECK-UB: {{.*}}.cpp:[[@LINE-17]]:15: runtime error: applying non-zero offset 1 to null pointer
- // CHECK-UB-C: {{.*}}.cpp:[[@LINE-18]]:15: runtime error: applying zero offset to null pointer
base = (char *)(intptr_t)(argc - 1);
offset = argc == 1 ? 0 : -(argc - 1);
(void)getelementpointer_inbounds_v1(base, offset);
- // CHECK-UB: {{.*}}.cpp:[[@LINE-19]]:15: runtime error: applying non-zero offset to non-null pointer {{.*}} produced null pointer
- // CHECK-UB-C: {{.*}}.cpp:[[@LINE-20]]:15: runtime error: applying zero offset to null pointer
+ // CHECK-UB: {{.*}}.cpp:[[@LINE-18]]:15: runtime error: applying non-zero offset to non-null pointer {{.*}} produced null pointer
return 0;
}
