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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/alias-19.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/alias-19.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c new file mode 100644 index 000000000..ce36d2c22 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c @@ -0,0 +1,29 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -fdump-tree-alias" } */ + +const static int a; + +int __attribute__((noinline)) +foo(int i) +{ + const int *q; + int b; + if (i) + q = &a; + else + q = &b; + b = 1; + /* We should not prune a from the points-to set of q. */ + return *q; +} + +extern void abort (void); +int main() +{ + if (foo(1) != 0) + abort (); + return 0; +} + +/* { dg-final { scan-tree-dump "q_. = { a b }" "alias" } } */ +/* { dg-final { cleanup-tree-dump "alias" } } */ |