From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.c-torture/execute/pr17252.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/pr17252.c (limited to 'gcc/testsuite/gcc.c-torture/execute/pr17252.c') diff --git a/gcc/testsuite/gcc.c-torture/execute/pr17252.c b/gcc/testsuite/gcc.c-torture/execute/pr17252.c new file mode 100644 index 000000000..bd1b6b99e --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr17252.c @@ -0,0 +1,21 @@ +/* PR 17252. When a char * pointer P takes its own address, storing + into *P changes P itself. */ + +char *a; + +main () +{ + /* Make 'a' point to itself. */ + a = (char *)&a; + + /* Change what 'a' is pointing to. */ + a[0]++; + + /* If a's memory tag does not contain 'a' in its alias set, we will + think that this predicate is superfluous and change it to + 'if (1)'. */ + if (a == (char *)&a) + abort (); + + return 0; +} -- cgit v1.2.3