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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.c-torture/execute/mayalias-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.c-torture/execute/mayalias-1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.c-torture/execute/mayalias-1.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/mayalias-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/mayalias-1.c new file mode 100644 index 000000000..ba461cae1 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/mayalias-1.c @@ -0,0 +1,21 @@ +/* Tests that the may_alias attribute works as expected. + Author: Osku Salerma <osku@iki.fi> Apr 2002. */ + +extern void abort(void); +extern void exit(int); + +typedef short __attribute__((__may_alias__)) short_a; + +int +main (void) +{ + int a = 0x12345678; + short_a *b = (short_a*) &a; + + b[1] = 0; + + if (a == 0x12345678) + abort(); + + exit(0); +} |