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| author | Martin Liska <mliska@suse.cz> | 2014-11-07 13:32:30 +0100 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2014-11-07 12:32:30 +0000 |
| commit | 8c14c817f30b966f509636b96d4e5586261a258b (patch) | |
| tree | 0b4d48f2d89c808ed0bbec9eb9bf0c8bf6983e09 /gcc/cgraphunit.c | |
| parent | 8c00ba08c614069a590c673fe20afe9a5f1f55fe (diff) | |
| download | gcc-8c14c817f30b966f509636b96d4e5586261a258b.zip gcc-8c14c817f30b966f509636b96d4e5586261a258b.tar.gz gcc-8c14c817f30b966f509636b96d4e5586261a258b.tar.bz2 | |
re PR tree-optimization/63595 (Segmentation faults inside kernel)
PR ipa/63595
* g++.dg/ipa/pr63595.C: New test.
* cgraphunit.c (cgraph_node::expand_thunk): DECL_BY_REFERENCE
is correctly handled for thunks created by IPA ICF.
From-SVN: r217218
Diffstat (limited to 'gcc/cgraphunit.c')
| -rw-r--r-- | gcc/cgraphunit.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c index d2e8847..75d4140 100644 --- a/gcc/cgraphunit.c +++ b/gcc/cgraphunit.c @@ -1555,7 +1555,15 @@ cgraph_node::expand_thunk (bool output_asm_thunks, bool force_gimple_thunk) if (!VOID_TYPE_P (restype)) { if (DECL_BY_REFERENCE (resdecl)) - restmp = gimple_fold_indirect_ref (resdecl); + { + restmp = gimple_fold_indirect_ref (resdecl); + if (!restmp) + restmp = build2 (MEM_REF, + TREE_TYPE (TREE_TYPE (DECL_RESULT (alias))), + resdecl, + build_int_cst (TREE_TYPE + (DECL_RESULT (alias)), 0)); + } else if (!is_gimple_reg_type (restype)) { restmp = resdecl; @@ -1651,7 +1659,11 @@ cgraph_node::expand_thunk (bool output_asm_thunks, bool force_gimple_thunk) gimple_call_set_tail (call, true); /* Build return value. */ - ret = gimple_build_return (restmp); + if (!DECL_BY_REFERENCE (resdecl)) + ret = gimple_build_return (restmp); + else + ret = gimple_build_return (resdecl); + gsi_insert_after (&bsi, ret, GSI_NEW_STMT); } else |