From 4cde512c84dfc20a95a01cca838f288e3015cab5 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 22 Mar 2016 09:11:14 +0100 Subject: re PR c++/70295 (bogus -Wnonnull-compare for "dynamic_cast(this) != nullptr") PR c++/70295 * gimplify.c (gimplify_modify_expr): Call gimple_set_no_warning on assign if (*from_p) is a comparison, set it to TREE_NO_WARNING (*from_p). * c-c++-common/nonnull-1.c (func): Remove parens around cp4 != 0. (func2): New function for cond with parens, xfail warning for c++. * g++.dg/warn/Wnonnull-compare-8.C: New test. From-SVN: r234392 --- gcc/testsuite/c-c++-common/nonnull-1.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'gcc/testsuite/c-c++-common/nonnull-1.c') diff --git a/gcc/testsuite/c-c++-common/nonnull-1.c b/gcc/testsuite/c-c++-common/nonnull-1.c index fb2814c..2446d6f 100644 --- a/gcc/testsuite/c-c++-common/nonnull-1.c +++ b/gcc/testsuite/c-c++-common/nonnull-1.c @@ -24,5 +24,11 @@ func (char *cp1, char *cp2, char *cp3, char *cp4) if (NULL != cp3) /* { dg-warning "nonnull argument" "cp3 compared to NULL" } */ return 3; - return (cp4 != 0) ? 0 : 1; /* { dg-warning "nonnull argument" "cp4 compared to NULL" } */ + return cp4 != 0 ? 0 : 1; /* { dg-warning "nonnull argument" "cp4 compared to NULL" } */ +} + +__attribute__((nonnull (1))) int +func2 (char *cp) +{ + return (cp != NULL) ? 1 : 0; /* { dg-warning "nonnull argument" "cp compared to NULL" { xfail c++ } } */ } -- cgit v1.1