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| author | Richard Guenther <rguenther@suse.de> | 2006-01-05 15:30:44 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2006-01-05 15:30:44 +0000 |
| commit | 758cf3f28ab51cee208d52505ed6fb7c1d1b0bd1 (patch) | |
| tree | 1be6d45ed8f38489c81824750e671fab251a6b5a /gcc/testsuite/gcc.dg | |
| parent | ad0926324df676c7e296d3a3e40c775d5a2b5716 (diff) | |
| download | gcc-758cf3f28ab51cee208d52505ed6fb7c1d1b0bd1.zip gcc-758cf3f28ab51cee208d52505ed6fb7c1d1b0bd1.tar.gz gcc-758cf3f28ab51cee208d52505ed6fb7c1d1b0bd1.tar.bz2 | |
re PR tree-optimization/22555 (array in struct disables salias subvars for other fields)
2006-01-05 Richard Guenther <rguenther@suse.de>
PR tree-optimization/22555
* tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
if one structure field is an array.
* tree-ssa-operands.c (get_expr_operands): Continue scanning
operands even if we found a subvar, but ignore VOPs in this
case.
* tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
for renaming.
* tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
* gcc.dg/tree-ssa/alias-3.c: New testcase.
From-SVN: r109381
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/alias-3.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/alias-3.c b/gcc/testsuite/gcc.dg/tree-ssa/alias-3.c new file mode 100644 index 0000000..3d8587d --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/alias-3.c @@ -0,0 +1,20 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized" } */ + +struct { + int i; + int j; + int x[2]; +} a; + +int foo(void) +{ + a.i = 1; + a.j = 0; + a.x[0] = 0; + return a.i + a.j; +} + +/* { dg-final { scan-tree-dump "return 1;" "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ + |