diff options
| author | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-12-01 17:39:44 +0000 |
|---|---|---|
| committer | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-12-01 17:39:44 +0000 |
| commit | c77fa5484e7c9746a0992b3db5a69a2fed5ef8d2 (patch) | |
| tree | 53d7b9d714ee4065887856ae83a6c37f3a1a9412 /gcc/tree-sra.c | |
| parent | edbb328f08335dc95672cc24f135acd556c195cd (diff) | |
| download | gcc-c77fa5484e7c9746a0992b3db5a69a2fed5ef8d2.tar.gz | |
2009-12-01 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/42237
* tree-sra.c (sra_ipa_modify_assign): Split gimple_reg_type assignments
in between references into two.
* testsuite/gcc.c-torture/compile/pr42237.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154874 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-sra.c')
| -rw-r--r-- | gcc/tree-sra.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c index 2c75838835a..a6a1a90d757 100644 --- a/gcc/tree-sra.c +++ b/gcc/tree-sra.c @@ -3707,12 +3707,22 @@ sra_ipa_modify_assign (gimple *stmt_ptr, gimple_stmt_iterator *gsi, void *data) any |= sra_ipa_modify_expr (lhs_p, gsi, true, data); if (any) { + tree new_rhs = NULL_TREE; + if (!useless_type_conversion_p (TREE_TYPE (*lhs_p), TREE_TYPE (*rhs_p))) + new_rhs = fold_build1_loc (gimple_location (stmt), VIEW_CONVERT_EXPR, + TREE_TYPE (*lhs_p), *rhs_p); + else if (REFERENCE_CLASS_P (*rhs_p) + && is_gimple_reg_type (TREE_TYPE (*lhs_p)) + && !is_gimple_reg (*lhs_p)) + /* This can happen when an assignment in between two single field + structures is turned into an assignment in between two pointers to + scalars (PR 42237). */ + new_rhs = *rhs_p; + + if (new_rhs) { - location_t loc = gimple_location (stmt); - tree vce = fold_build1_loc (loc, VIEW_CONVERT_EXPR, - TREE_TYPE (*lhs_p), *rhs_p); - tree tmp = force_gimple_operand_gsi (gsi, vce, true, NULL_TREE, + tree tmp = force_gimple_operand_gsi (gsi, new_rhs, true, NULL_TREE, true, GSI_SAME_STMT); gimple_assign_set_rhs_from_tree (gsi, tmp); |