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| author | Richard Guenther <rguenther@suse.de> | 2009-08-14 15:07:43 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-08-14 15:07:43 +0000 |
| commit | 1a15bfdcdc93b45ddeb4701fa1d1d587305996fc (patch) | |
| tree | eed72790b8da7b6241bcc9287b383b2ba96bc6fd /gcc/ipa-prop.c | |
| parent | 065312cfdd633dae0cf725104e07a2c05e2747e7 (diff) | |
| download | gcc-1a15bfdcdc93b45ddeb4701fa1d1d587305996fc.tar.gz | |
ipa-prop.c (compute_complex_pass_through): If we cannot compute a non-varying offset for IPA_JF_ANCESTOR punt.
2009-08-14 Richard Guenther <rguenther@suse.de>
* ipa-prop.c (compute_complex_pass_through): If we cannot
compute a non-varying offset for IPA_JF_ANCESTOR punt.
* gcc.c-torture/execute/20090814-1.c: New testcase.
From-SVN: r150757
Diffstat (limited to 'gcc/ipa-prop.c')
| -rw-r--r-- | gcc/ipa-prop.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c index 2842088d8f1..23710067ee7 100644 --- a/gcc/ipa-prop.c +++ b/gcc/ipa-prop.c @@ -377,7 +377,10 @@ compute_complex_pass_through (struct ipa_node_params *info, type = TREE_TYPE (op1); op1 = get_ref_base_and_extent (op1, &offset, &size, &max_size); - if (TREE_CODE (op1) != INDIRECT_REF) + if (TREE_CODE (op1) != INDIRECT_REF + /* If this is a varying address, punt. */ + || max_size == -1 + || max_size != size) return; op1 = TREE_OPERAND (op1, 0); if (TREE_CODE (op1) != SSA_NAME |