[NFC] Some small test updates for Implicit Conversion sanitizer.

Split off from D50251.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@339996 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 81 insertions, 5 deletions

diff --git a/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c b/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c
new file mode 100644
index 000000000..e3260a95f
--- /dev/null
+++ b/test/ubsan/TestCases/ImplicitConversion/integer-conversion.c
@@ -0,0 +1,70 @@
+// RUN: %clang   -x c   -fsanitize=implicit-integer-truncation %s -DV0 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V0
+// RUN: %clang   -x c   -fsanitize=implicit-integer-truncation %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V1
+// RUN: %clang   -x c   -fsanitize=implicit-integer-truncation %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V2
+// RUN: %clang   -x c   -fsanitize=implicit-integer-truncation %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V3
+// RUN: %clang   -x c   -fsanitize=implicit-integer-truncation %s -DV4 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V4
+// RUN: %clang   -x c   -fsanitize=implicit-integer-truncation %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V5
+// RUN: %clang   -x c   -fsanitize=implicit-integer-truncation %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V6
+
+// RUN: %clang   -x c++ -fsanitize=implicit-integer-truncation %s -DV0 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V0
+// RUN: %clang   -x c++ -fsanitize=implicit-integer-truncation %s -DV1 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V1
+// RUN: %clang   -x c++ -fsanitize=implicit-integer-truncation %s -DV2 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V2
+// RUN: %clang   -x c++ -fsanitize=implicit-integer-truncation %s -DV3 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V3
+// RUN: %clang   -x c++ -fsanitize=implicit-integer-truncation %s -DV4 -o %t && %run %t 2>&1 | not FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V4
+// RUN: %clang   -x c++ -fsanitize=implicit-integer-truncation %s -DV5 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V5
+// RUN: %clang   -x c++ -fsanitize=implicit-integer-truncation %s -DV6 -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion" --check-prefixes=CHECK-V6
+
+#include <stdint.h>
+
+int8_t positive6_convert_unsigned_int_to_signed_char(uint32_t x) {
+#line 100
+  return x;
+}
+
+#line 1120 // !!!
+
+void test_positives() {
+  // No bits set.
+  positive6_convert_unsigned_int_to_signed_char(0);
+
+  // One lowest bit set.
+  positive6_convert_unsigned_int_to_signed_char(1);
+
+#if defined(V0)
+  // All source bits set.
+  positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT32_MAX);
+#elif defined(V1)
+  // Source 'Sign' bit set.
+  positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MIN);
+// CHECK-V1: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 2147483648 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to 0 (8-bit, signed)
+#elif defined(V2)
+  // All bits except the source 'Sign' bit are set.
+  positive6_convert_unsigned_int_to_signed_char((uint32_t)INT32_MAX);
+// CHECK-V2: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 2147483647 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to -1 (8-bit, signed)
+#elif defined(V3)
+  // All destination bits set.
+  positive6_convert_unsigned_int_to_signed_char((uint32_t)UINT8_MAX);
+// CHECK-V3: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 255 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to -1 (8-bit, signed)
+#elif defined(V4)
+  // Destination 'sign' bit set.
+  positive6_convert_unsigned_int_to_signed_char((uint32_t)INT8_MIN);
+#elif defined(V5)
+  // All bits except the destination 'sign' bit are set.
+  positive6_convert_unsigned_int_to_signed_char(~((uint32_t)(uint8_t)INT8_MIN));
+// CHECK-V5: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 4294967167 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to 127 (8-bit, signed)
+#elif defined(V6)
+  // Only the source and destination sign bits are set.
+  positive6_convert_unsigned_int_to_signed_char((uint32_t)((uint32_t)INT32_MIN | (uint32_t)((uint8_t)INT8_MIN)));
+// CHECK-V6: {{.*}}integer-conversion.c:100:10: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 2147483776 (32-bit, unsigned) to type 'int8_t' (aka 'signed char') changed the value to -128 (8-bit, signed)
+#else
+#error Some V* needs to be defined!
+#endif
+}
+
+// CHECK-NOT: implicit conversion
+
+int main() {
+  test_positives();
+
+  return 0;
+}
diff --git a/test/ubsan/TestCases/ImplicitConversion/integer-truncation-blacklist.c b/test/ubsan/TestCases/ImplicitConversion/integer-truncation-blacklist.c
index 13d4dca4f..a3650e0a9 100644
--- a/test/ubsan/TestCases/ImplicitConversion/integer-truncation-blacklist.c
+++ b/test/ubsan/TestCases/ImplicitConversion/integer-truncation-blacklist.c
@@ -3,16 +3,22 @@
 // XFAIL: android
 // UNSUPPORTED: ios
 
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation                           -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion"
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation                           -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion"
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation                           -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion"
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation                           -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s --implicit-check-not="implicit conversion"
+
 // RUN: rm -f %tmp
 // RUN: echo "[implicit-integer-truncation]" >> %tmp
-// RUN: echo "fun:*implicitTruncation*" >> %tmp
-// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O0 %s -o %t && not %run %t 2>&1
-// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O1 %s -o %t && not %run %t 2>&1
-// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O2 %s -o %t && not %run %t 2>&1
-// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O3 %s -o %t && not %run %t 2>&1
+// RUN: echo "fun:implicitTruncation" >> %tmp
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O0 %s -o %t && not %run %t 2>&1 | not FileCheck %s
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O1 %s -o %t && not %run %t 2>&1 | not FileCheck %s
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O2 %s -o %t && not %run %t 2>&1 | not FileCheck %s
+// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O3 %s -o %t && not %run %t 2>&1 | not FileCheck %s
 
 unsigned char implicitTruncation(unsigned int argc) {
   return argc; // BOOM
+// CHECK: {{.*}}integer-truncation-blacklist.c:[[@LINE-1]]:10: runtime error: implicit conversion from type 'unsigned int' of value 4294967295 (32-bit, unsigned) to type 'unsigned char' changed the value to 255 (8-bit, unsigned)
 }
 
 int main(int argc, char **argv) {