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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20050719-1.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20050719-1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20050719-1.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20050719-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20050719-1.c new file mode 100644 index 000000000..8dc4c7e5b --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20050719-1.c @@ -0,0 +1,38 @@ +/* { dg-do run } */ +/* { dg-options "-O2" } */ + +extern void abort (void) __attribute__ ((__nothrow__)) __attribute__ +((__noreturn__)); +extern void exit (int __status) __attribute__ ((__nothrow__)) +__attribute__ ((__noreturn__)); + +struct bootLoader { + int x; +}; + +void +zap(struct bootLoader *bootLoader) +{ + /* The expression on the RHS of the assignment is *not* a + dereference of pointer 'bootLoader'. It is merely used as an + offset calculation. VRP was erroneously removing the if() + because it thought that 'bootLoader' was always dereferenced. */ + int *boot = &bootLoader->x; + + if (bootLoader) + { + useboot (boot); + } +} + +int +useboot (void *boot) +{ + abort (); +} + +main() +{ + zap (0); + return 0; +} |