ubsan: Disable __int128 tests if the host Clang does not support it. These

tests will still fail if compiler-rt was built with a compiler without __int128
support, but the host compiler has __int128 support.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@168955 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 45 insertions, 11 deletions

diff --git a/lib/ubsan/lit_tests/Float/cast-overflow.cpp b/lib/ubsan/lit_tests/Float/cast-overflow.cpp
index b9c5d38c..24b654a4 100644
--- a/lib/ubsan/lit_tests/Float/cast-overflow.cpp
+++ b/lib/ubsan/lit_tests/Float/cast-overflow.cpp
@@ -14,6 +14,7 @@
 // This test assumes float and double are IEEE-754 single- and double-precision.
 
 #include <stdint.h>
+#include <stdio.h>
 #include <string.h>
 
 float Inf;
@@ -30,8 +31,10 @@ int main(int argc, char **argv) {
   float MaxFloatRepresentableAsUInt = 0xffffff00u;
   (unsigned int)MaxFloatRepresentableAsUInt; // ok
 
+#ifdef __SIZEOF_INT128__
   unsigned __int128 FloatMaxAsUInt128 = -((unsigned __int128)1 << 104);
   (void)(float)FloatMaxAsUInt128; // ok
+#endif
 
   // Build a '+Inf'.
   char InfVal[] = { 0x00, 0x00, 0x80, 0x7f };
@@ -71,8 +74,13 @@ int main(int argc, char **argv) {
 
     // Integer -> floating point overflow.
   case '6':
-    // CHECK-6: fatal error: value 0xffffff00000000000000000000000001 is outside the range of representable values of type 'float'
+    // CHECK-6: {{fatal error: value 0xffffff00000000000000000000000001 is outside the range of representable values of type 'float'|__int128 not supported}}
+#ifdef __SIZEOF_INT128__
     return (float)(FloatMaxAsUInt128 + 1);
+#else
+    puts("__int128 not supported");
+    return 0;
+#endif
   // FIXME: The backend cannot lower __fp16 operations on x86 yet.
   //case '7':
   //  (__fp16)65504; // ok
diff --git a/lib/ubsan/lit_tests/Integer/add-overflow.cpp b/lib/ubsan/lit_tests/Integer/add-overflow.cpp
index 020ae767..179099ac 100644
--- a/lib/ubsan/lit_tests/Integer/add-overflow.cpp
+++ b/lib/ubsan/lit_tests/Integer/add-overflow.cpp
@@ -3,6 +3,7 @@
 // RUN: %clang -DADD_I128 -fsanitize=signed-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=ADD_I128
 
 #include <stdint.h>
+#include <stdio.h>
 
 int main() {
   // These promote to 'int'.
@@ -12,7 +13,7 @@ int main() {
 #ifdef ADD_I32
   int32_t k = 0x12345678;
   k += 0x789abcde;
-  // CHECK-ADD_I32: add-overflow.cpp:14:5: fatal error: signed integer overflow: 305419896 + 2023406814 cannot be represented in type 'int32_t' (aka 'int')
+  // CHECK-ADD_I32: add-overflow.cpp:[[@LINE-1]]:5: fatal error: signed integer overflow: 305419896 + 2023406814 cannot be represented in type 'int32_t' (aka 'int')
 #endif
 
 #ifdef ADD_I64
@@ -21,7 +22,11 @@ int main() {
 #endif
 
 #ifdef ADD_I128
+# ifdef __SIZEOF_INT128__
   (void)((__int128_t(1) << 126) + (__int128_t(1) << 126));
-  // CHECK-ADD_I128: 0x40000000000000000000000000000000 + 0x40000000000000000000000000000000 cannot be represented in type '__int128'
+# else
+  puts("__int128 not supported");
+# endif
+  // CHECK-ADD_I128: {{0x40000000000000000000000000000000 \+ 0x40000000000000000000000000000000 cannot be represented in type '__int128'|__int128 not supported}}
 #endif
 }
diff --git a/lib/ubsan/lit_tests/Integer/div-zero.cpp b/lib/ubsan/lit_tests/Integer/div-zero.cpp
index f024835f..b9aed512 100644
--- a/lib/ubsan/lit_tests/Integer/div-zero.cpp
+++ b/lib/ubsan/lit_tests/Integer/div-zero.cpp
@@ -1,9 +1,15 @@
 // RUN: %clang -fsanitize=integer-divide-by-zero -DDIVIDEND=0 %s -o %t && %t 2>&1 | FileCheck %s
 // RUN: %clang -fsanitize=integer-divide-by-zero -DDIVIDEND=1U %s -o %t && %t 2>&1 | FileCheck %s
 // RUN: %clang -fsanitize=float-divide-by-zero -DDIVIDEND=1.5 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clang -fsanitize=integer-divide-by-zero -DDIVIDEND='__int128(123)' %s -o %t && %t 2>&1 | FileCheck %s
+// RUN: %clang -fsanitize=integer-divide-by-zero -DDIVIDEND='intmax(123)' %s -o %t && %t 2>&1 | FileCheck %s
+
+#ifdef __SIZEOF_INT128__
+typedef __int128 intmax;
+#else
+typedef long long intmax;
+#endif
 
 int main() {
-  // CHECK: div-zero.cpp:8:12: fatal error: division by zero
+  // CHECK: div-zero.cpp:[[@LINE+1]]:12: fatal error: division by zero
   DIVIDEND / 0;
 }
diff --git a/lib/ubsan/lit_tests/Integer/sub-overflow.cpp b/lib/ubsan/lit_tests/Integer/sub-overflow.cpp
index ee431548..e432cb88 100644
--- a/lib/ubsan/lit_tests/Integer/sub-overflow.cpp
+++ b/lib/ubsan/lit_tests/Integer/sub-overflow.cpp
@@ -3,6 +3,7 @@
 // RUN: %clang -DSUB_I128 -fsanitize=signed-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=SUB_I128
 
 #include <stdint.h>
+#include <stdio.h>
 
 int main() {
   // These promote to 'int'.
@@ -11,7 +12,7 @@ int main() {
 
 #ifdef SUB_I32
   (void)(int32_t(-2) - int32_t(0x7fffffff));
-  // CHECK-SUB_I32: sub-overflow.cpp:13:22: fatal error: signed integer overflow: -2 - 2147483647 cannot be represented in type 'int'
+  // CHECK-SUB_I32: sub-overflow.cpp:[[@LINE-1]]:22: fatal error: signed integer overflow: -2 - 2147483647 cannot be represented in type 'int'
 #endif
 
 #ifdef SUB_I64
@@ -20,7 +21,11 @@ int main() {
 #endif
 
 #ifdef SUB_I128
+# ifdef __SIZEOF_INT128__
   (void)(-(__int128_t(1) << 126) - (__int128_t(1) << 126) - 1);
-  // CHECK-SUB_I128: 0x80000000000000000000000000000000 - 1 cannot be represented in type '__int128'
+# else
+  puts("__int128 not supported");
+# endif
+  // CHECK-SUB_I128: {{0x80000000000000000000000000000000 - 1 cannot be represented in type '__int128'|__int128 not supported}}
 #endif
 }
diff --git a/lib/ubsan/lit_tests/Integer/uadd-overflow.cpp b/lib/ubsan/lit_tests/Integer/uadd-overflow.cpp
index bd25bd72..e373596b 100644
--- a/lib/ubsan/lit_tests/Integer/uadd-overflow.cpp
+++ b/lib/ubsan/lit_tests/Integer/uadd-overflow.cpp
@@ -3,6 +3,7 @@
 // RUN: %clang -DADD_I128 -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=ADD_I128
 
 #include <stdint.h>
+#include <stdio.h>
 
 int main() {
   // These promote to 'int'.
@@ -12,7 +13,7 @@ int main() {
 #ifdef ADD_I32
   uint32_t k = 0x87654321;
   k += 0xedcba987;
-  // CHECK-ADD_I32: uadd-overflow.cpp:14:5: fatal error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'uint32_t' (aka 'unsigned int')
+  // CHECK-ADD_I32: uadd-overflow.cpp:[[@LINE-1]]:5: fatal error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'uint32_t' (aka 'unsigned int')
 #endif
 
 #ifdef ADD_I64
@@ -21,7 +22,11 @@ int main() {
 #endif
 
 #ifdef ADD_I128
+# ifdef __SIZEOF_INT128__
   (void)((__uint128_t(1) << 127) + (__uint128_t(1) << 127));
-  // CHECK-ADD_I128: 0x80000000000000000000000000000000 + 0x80000000000000000000000000000000 cannot be represented in type 'unsigned __int128'
+# else
+  puts("__int128 not supported");
+# endif
+  // CHECK-ADD_I128: {{0x80000000000000000000000000000000 \+ 0x80000000000000000000000000000000 cannot be represented in type 'unsigned __int128'|__int128 not supported}}
 #endif
 }
diff --git a/lib/ubsan/lit_tests/Integer/usub-overflow.cpp b/lib/ubsan/lit_tests/Integer/usub-overflow.cpp
index e91810b4..c8d9babb 100644
--- a/lib/ubsan/lit_tests/Integer/usub-overflow.cpp
+++ b/lib/ubsan/lit_tests/Integer/usub-overflow.cpp
@@ -3,6 +3,7 @@
 // RUN: %clang -DSUB_I128 -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=SUB_I128
 
 #include <stdint.h>
+#include <stdio.h>
 
 int main() {
   // These promote to 'int'.
@@ -11,7 +12,7 @@ int main() {
 
 #ifdef SUB_I32
   (void)(uint32_t(1) - uint32_t(2));
-  // CHECK-SUB_I32: usub-overflow.cpp:13:22: fatal error: unsigned integer overflow: 1 - 2 cannot be represented in type 'unsigned int'
+  // CHECK-SUB_I32: usub-overflow.cpp:[[@LINE-1]]:22: fatal error: unsigned integer overflow: 1 - 2 cannot be represented in type 'unsigned int'
 #endif
 
 #ifdef SUB_I64
@@ -20,7 +21,11 @@ int main() {
 #endif
 
 #ifdef SUB_I128
+# ifdef __SIZEOF_INT128__
   (void)((__uint128_t(1) << 126) - (__uint128_t(1) << 127));
-  // CHECK-SUB_I128: 0x40000000000000000000000000000000 - 0x80000000000000000000000000000000 cannot be represented in type 'unsigned __int128'
+# else
+  puts("__int128 not supported\n");
+# endif
+  // CHECK-SUB_I128: {{0x40000000000000000000000000000000 - 0x80000000000000000000000000000000 cannot be represented in type 'unsigned __int128'|__int128 not supported}}
 #endif
 }