Add underscores to local vars in selftest macros

Allows functions doing selftests to take parameters with names like
"actual".

2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* selftest.h (ASSERT_TRUE_AT, ASSERT_FALSE_AT, ASSERT_EQ_AT)
	(ASSERT_NE, ASSERT_PRED1): Add underscores to local variable names
	* selftest-rtl.h (ASSERT_RTX_EQ, ASSERT_RTX_PTR_EQ): Likewise.

From-SVN: r255473

gcc/ChangeLog

+2017-12-07  Richard Sandiford  <richard.sandiford@linaro.org>
+
+	* selftest.h (ASSERT_TRUE_AT, ASSERT_FALSE_AT, ASSERT_EQ_AT)
+	(ASSERT_NE, ASSERT_PRED1): Add underscores to local variable names
+	* selftest-rtl.h (ASSERT_RTX_EQ, ASSERT_RTX_PTR_EQ): Likewise.
+
 2017-12-07  Bin Cheng  <bin.cheng@arm.com>
 	    Richard Biener  <rguenther@suse.de>
 

gcc/selftest-rtl.h

@@ -49,8 +49,8 @@ assert_rtl_dump_eq (const location &loc, const char *expected_dump, rtx x,
 
 #define ASSERT_RTX_EQ(EXPECTED, ACTUAL) 				\
   SELFTEST_BEGIN_STMT							\
-  const char *desc = "ASSERT_RTX_EQ (" #EXPECTED ", " #ACTUAL ")";	\
-  ::selftest::assert_rtx_eq_at (SELFTEST_LOCATION, desc, (EXPECTED),	\
+  const char *desc_ = "ASSERT_RTX_EQ (" #EXPECTED ", " #ACTUAL ")";	\
+  ::selftest::assert_rtx_eq_at (SELFTEST_LOCATION, desc_, (EXPECTED),	\
 				(ACTUAL));				\
   SELFTEST_END_STMT
 
@@ -62,8 +62,8 @@ extern void assert_rtx_eq_at (const location &, const char *, rtx, rtx);
 
 #define ASSERT_RTX_PTR_EQ(EXPECTED, ACTUAL) \
   SELFTEST_BEGIN_STMT							\
-  const char *desc = "ASSERT_RTX_PTR_EQ (" #EXPECTED ", " #ACTUAL ")";  \
-  ::selftest::assert_rtx_ptr_eq_at (SELFTEST_LOCATION, desc, (EXPECTED), \
+  const char *desc_ = "ASSERT_RTX_PTR_EQ (" #EXPECTED ", " #ACTUAL ")";  \
+  ::selftest::assert_rtx_ptr_eq_at (SELFTEST_LOCATION, desc_, (EXPECTED), \
 				    (ACTUAL));				\
   SELFTEST_END_STMT
 

gcc/selftest.h

@@ -220,12 +220,12 @@ extern int num_passes;
 
 #define ASSERT_TRUE_AT(LOC, EXPR)			\
   SELFTEST_BEGIN_STMT					\
-  const char *desc = "ASSERT_TRUE (" #EXPR ")";		\
-  bool actual = (EXPR);					\
-  if (actual)						\
-    ::selftest::pass ((LOC), desc);			\
+  const char *desc_ = "ASSERT_TRUE (" #EXPR ")";	\
+  bool actual_ = (EXPR);				\
+  if (actual_)						\
+    ::selftest::pass ((LOC), desc_);			\
   else							\
-    ::selftest::fail ((LOC), desc);			\
+    ::selftest::fail ((LOC), desc_);			\
   SELFTEST_END_STMT
 
 /* Evaluate EXPR and coerce to bool, calling
@@ -240,12 +240,12 @@ extern int num_passes;
 
 #define ASSERT_FALSE_AT(LOC, EXPR)				\
   SELFTEST_BEGIN_STMT						\
-  const char *desc = "ASSERT_FALSE (" #EXPR ")";			\
-  bool actual = (EXPR);							\
-  if (actual)								\
-    ::selftest::fail ((LOC), desc);			\
-  else									\
-    ::selftest::pass ((LOC), desc);					\
+  const char *desc_ = "ASSERT_FALSE (" #EXPR ")";		\
+  bool actual_ = (EXPR);					\
+  if (actual_)							\
+    ::selftest::fail ((LOC), desc_);				\
+  else								\
+    ::selftest::pass ((LOC), desc_);				\
   SELFTEST_END_STMT
 
 /* Evaluate EXPECTED and ACTUAL and compare them with ==, calling
@@ -260,11 +260,11 @@ extern int num_passes;
 
 #define ASSERT_EQ_AT(LOC, EXPECTED, ACTUAL)		       \
   SELFTEST_BEGIN_STMT					       \
-  const char *desc = "ASSERT_EQ (" #EXPECTED ", " #ACTUAL ")"; \
+  const char *desc_ = "ASSERT_EQ (" #EXPECTED ", " #ACTUAL ")"; \
   if ((EXPECTED) == (ACTUAL))				       \
-    ::selftest::pass ((LOC), desc);			       \
+    ::selftest::pass ((LOC), desc_);			       \
   else							       \
-    ::selftest::fail ((LOC), desc);			       \
+    ::selftest::fail ((LOC), desc_);			       \
   SELFTEST_END_STMT
 
 /* Evaluate EXPECTED and ACTUAL and compare them with !=, calling
@@ -273,11 +273,11 @@ extern int num_passes;
 
 #define ASSERT_NE(EXPECTED, ACTUAL)			       \
   SELFTEST_BEGIN_STMT					       \
-  const char *desc = "ASSERT_NE (" #EXPECTED ", " #ACTUAL ")"; \
+  const char *desc_ = "ASSERT_NE (" #EXPECTED ", " #ACTUAL ")"; \
   if ((EXPECTED) != (ACTUAL))				       \
-    ::selftest::pass (SELFTEST_LOCATION, desc);			       \
+    ::selftest::pass (SELFTEST_LOCATION, desc_);	       \
   else							       \
-    ::selftest::fail (SELFTEST_LOCATION, desc);			       \
+    ::selftest::fail (SELFTEST_LOCATION, desc_);	       \
   SELFTEST_END_STMT
 
 /* Evaluate EXPECTED and ACTUAL and compare them with strcmp, calling
@@ -313,14 +313,14 @@ extern int num_passes;
 /* Evaluate PRED1 (VAL1), calling ::selftest::pass if it is true,
    ::selftest::fail if it is false.  */
 
-#define ASSERT_PRED1(PRED1, VAL1)			\
-  SELFTEST_BEGIN_STMT					\
-  const char *desc = "ASSERT_PRED1 (" #PRED1 ", " #VAL1 ")";	\
-  bool actual = (PRED1) (VAL1);				\
-  if (actual)						\
-    ::selftest::pass (SELFTEST_LOCATION, desc);			\
-  else							\
-    ::selftest::fail (SELFTEST_LOCATION, desc);			\
+#define ASSERT_PRED1(PRED1, VAL1)				\
+  SELFTEST_BEGIN_STMT						\
+  const char *desc_ = "ASSERT_PRED1 (" #PRED1 ", " #VAL1 ")";	\
+  bool actual_ = (PRED1) (VAL1);				\
+  if (actual_)							\
+    ::selftest::pass (SELFTEST_LOCATION, desc_);		\
+  else								\
+    ::selftest::fail (SELFTEST_LOCATION, desc_);		\
   SELFTEST_END_STMT
 
 #define SELFTEST_BEGIN_STMT do {