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| author | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-10-13 11:31:08 +0000 |
|---|---|---|
| committer | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-10-13 11:31:08 +0000 |
| commit | df017114b7c46d7cb9f6a51888a7939a5767047c (patch) | |
| tree | c366eb26ee9527581ae826e651347c89c8a66cbd /gcc/ipa-prop.c | |
| parent | 37531c6560b357b092ff7a94f70b2cba985a8d0b (diff) | |
| download | gcc-df017114b7c46d7cb9f6a51888a7939a5767047c.tar.gz | |
2009-10-13 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/41661
* ipa-prop.c (compute_complex_pass_through): Allow only operations
that are tcc_comparisons or do not change the type in any
un-usleless way.
* ipa-cp.c (ipcp_lattice_from_jfunc): Request boolean type when
folding tcc_comparison operations.
* testsuite/gcc.c-torture/compile/pr41661.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@152702 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ipa-prop.c')
| -rw-r--r-- | gcc/ipa-prop.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c index 0e6aaf51168..93c407b0826 100644 --- a/gcc/ipa-prop.c +++ b/gcc/ipa-prop.c @@ -357,6 +357,9 @@ compute_complex_pass_through (struct ipa_node_params *info, { if (TREE_CODE (op1) != SSA_NAME || !SSA_NAME_IS_DEFAULT_DEF (op1) + || (TREE_CODE_CLASS (gimple_expr_code (stmt)) != tcc_comparison + && !useless_type_conversion_p (TREE_TYPE (name), + TREE_TYPE (op1))) || !is_gimple_ip_invariant (op2)) return; |