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/pr15262.c | 48 +++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/pr15262.c (limited to 'gcc/testsuite/gcc.c-torture/execute/pr15262.c') diff --git a/gcc/testsuite/gcc.c-torture/execute/pr15262.c b/gcc/testsuite/gcc.c-torture/execute/pr15262.c new file mode 100644 index 000000000..2110f33a0 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr15262.c @@ -0,0 +1,48 @@ +/* We used to mis-compile this testcase as we did not know that + &a+offsetof(b,a) was the same as &a.b */ +struct A +{ + int t; + int i; +}; + +void +bar (float *p) +{ + *p = 5.2; +} + +int +foo(struct A *locp, int i, int str) +{ + float f, g, *p; + int T355; + int *T356; + /* Currently, the alias analyzer has limited support for handling + aliases of structure fields when no other variables are aliased. + Introduce additional aliases to confuse it. */ + p = i ? &g : &f; + bar (p); + if (*p > 0.0) + str = 1; + + T355 = locp->i; + T356 = &locp->i; + *T356 = str; + T355 = locp->i; + + return T355; +} + +main () +{ + struct A loc; + int str; + + loc.i = 2; + str = foo (&loc, 10, 3); + if (str!=1) + abort (); + return 0; +} + -- cgit v1.2.3