diff options
| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| 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/guality/pr49888.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/guality/pr49888.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/guality/pr49888.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/guality/pr49888.c b/gcc-4.9/gcc/testsuite/gcc.dg/guality/pr49888.c new file mode 100644 index 000000000..a0e26cf83 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/guality/pr49888.c @@ -0,0 +1,26 @@ +/* PR debug/49888 */ +/* { dg-do run } */ +/* { dg-options "-g" } */ + +static int v; + +static void __attribute__((noinline, noclone)) +f (int *p) +{ + int c = *p; + v = c; + *p = 1; /* { dg-final { gdb-test 12 "!!c" "0" } } */ + /* c may very well be optimized out at this point, so we test !c, + which will evaluate to the expected value. We just want to make + sure it doesn't remain bound to *p as it did before, in which + case !c would evaluate to 0. *p may also be regarded as aliasing + register saves, thus the !!c above. */ + v = 0; /* { dg-final { gdb-test 18 "!c" "1" } } */ +} +int +main () +{ + int a = 0; + f (&a); + return 0; +} |