re PR c/59846 (Imprecise column number for -Wtype-limits)

	PR c/59846
c-family/
	* c-common.c (shorten_compare): Add location_t parameter.
	* c-common.h (shorten_binary_op): Adjust declaration.
cp/
	* typeck.c (cp_build_binary_op): Pass location to shorten_compare.
c/
	* c-typeck.c (parser_build_binary_op): Use location instead of
	input_location.
	(build_binary_op): Pass location to shorten_compare.
testsuite/
	* gcc.dg/pr59846.c: New test.

From-SVN: r207008

1 files changed, 39 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr59846.c b/gcc/testsuite/gcc.dg/pr59846.c
new file mode 100644
index 0000000..e002fba
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr59846.c
@@ -0,0 +1,39 @@
+/* PR c/59846 */
+/* { dg-do compile } */
+/* { dg-options "-Wlogical-op -Wtype-limits" } */
+
+_Bool
+fn1 (unsigned int p)
+{
+  return 0UL > p; /* { dg-warning "14:comparison is always false due to limited range of data type" } */
+}
+
+_Bool
+fn2 (unsigned int p)
+{
+  return 0UL <= p; /* { dg-warning "14:comparison is always true due to limited range of data type" } */
+}
+
+_Bool
+fn3 (unsigned int p)
+{
+  return p >= 0U; /* { dg-warning "12:comparison of unsigned expression >= 0 is always true" } */
+}
+
+_Bool
+fn4 (unsigned int p)
+{
+  return p < 0U; /* { dg-warning "12:comparison of unsigned expression < 0 is always false" } */
+}
+
+_Bool
+fn5 (_Bool p)
+{
+  return p || !p; /* { dg-warning "12:logical" } */
+}
+
+_Bool
+fn6 (_Bool p)
+{
+  return p && !p; /* { dg-warning "12:logical" } */
+}