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| author | Richard Guenther <rguenther@suse.de> | 2009-03-29 17:54:04 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-03-29 17:54:04 +0000 |
| commit | 5babbcc0fceb0aa66547feb61124ff548929cbfc (patch) | |
| tree | 98c1222c0815281e2dca9c5dd72ee8e2618713f4 /gcc/testsuite/gcc.dg/tree-ssa | |
| parent | b0e5fa9401bbcb065adc9a79c0bda071d712491d (diff) | |
| download | gcc-5babbcc0fceb0aa66547feb61124ff548929cbfc.zip gcc-5babbcc0fceb0aa66547feb61124ff548929cbfc.tar.gz gcc-5babbcc0fceb0aa66547feb61124ff548929cbfc.tar.bz2 | |
tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Properly propagate addresses of array references.
2009-03-29 Richard Guenther <rguenther@suse.de>
* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Properly
propagate addresses of array references.
* gcc.dg/tree-ssa/forwprop-11.c: New testcase.
From-SVN: r145250
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/forwprop-11.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/forwprop-11.c b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-11.c new file mode 100644 index 0000000..eaaa6dd --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-11.c @@ -0,0 +1,19 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-forwprop1" } */ + +int f(int *p, int n) +{ + int (*a)[n] = (int (*)[n])p; + int *q = &(*a)[0]; + return q[1]; +} + +int g(int *p, int n) +{ + int (*a)[n] = (int (*)[n])p; + int *q = &(*a)[2]; + return q[-1]; +} + +/* { dg-final { scan-tree-dump-times "= \\\(\\\*a_..\\\)\\\[1\\\];" 2 "forwprop1" } } */ +/* { dg-final { cleanup-tree-dump "forwprop1" } } */ |