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| author | Richard Guenther <rguenther@suse.de> | 2008-10-21 12:15:55 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-10-21 12:15:55 +0000 |
| commit | 106580684f1027790dd169adea22d06b76ad7b35 (patch) | |
| tree | 2357fef0632500c82b24b8233dfd22064411dbf4 | |
| parent | 90e02569799242f8ea73b731efdf6bab785d3ea9 (diff) | |
| download | gcc-106580684f1027790dd169adea22d06b76ad7b35.zip gcc-106580684f1027790dd169adea22d06b76ad7b35.tar.gz gcc-106580684f1027790dd169adea22d06b76ad7b35.tar.bz2 | |
alias-19.c: New testcase.
2008-10-21 Richard Guenther <rguenther@suse.de>
* gcc.dg/tree-ssa/alias-19.c: New testcase.
From-SVN: r141261
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/alias-19.c | 31 |
2 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 3075046..e65e725 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2008-10-21 Richard Guenther <rguenther@suse.de> + + * gcc.dg/tree-ssa/alias-19.c: New testcase. + 2008-10-20 Manuel López-Ibáñez <manu@gcc.gnu.org> PR 12603 diff --git a/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c b/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c new file mode 100644 index 0000000..b92df43 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/alias-19.c @@ -0,0 +1,31 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -fdump-tree-alias-vops" } */ + +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 { scan-tree-dump "q_., name memory tag: NMT..., is dereferenced, points-to vars: { a b }" "alias" } } */ +/* { dg-final { scan-tree-dump "# VUSE <a_.\\\(D\\\), b_.>" "alias" } } */ +/* { dg-final { cleanup-tree-dump "alias" } } */ |