diff options
Diffstat (limited to 'gcc/tree-into-ssa.c')
| -rw-r--r-- | gcc/tree-into-ssa.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/gcc/tree-into-ssa.c b/gcc/tree-into-ssa.c index 3e0c817..815d8a8 100644 --- a/gcc/tree-into-ssa.c +++ b/gcc/tree-into-ssa.c @@ -249,7 +249,7 @@ mark_for_renaming (tree sym) static bool marked_for_renaming (tree sym) { - if (!symbols_to_rename_set) + if (!symbols_to_rename_set || sym == NULL_TREE) return false; return bitmap_bit_p (symbols_to_rename_set, DECL_UID (sym)); } @@ -2388,6 +2388,7 @@ rewrite_into_ssa (void) { bitmap_head *dfs; basic_block bb; + unsigned i; /* Initialize operand data structures. */ init_ssa_operands (cfun); @@ -2428,6 +2429,25 @@ rewrite_into_ssa (void) fini_ssa_renamer (); + /* Try to get rid of all gimplifier generated temporaries by making + its SSA names anonymous. This way we can garbage collect them + all after removing unused locals which we do in our TODO. */ + for (i = 1; i < num_ssa_names; ++i) + { + tree decl, name = ssa_name (i); + if (!name + || SSA_NAME_IS_DEFAULT_DEF (name)) + continue; + decl = SSA_NAME_VAR (name); + if (decl + && TREE_CODE (decl) == VAR_DECL + && !VAR_DECL_IS_VIRTUAL_OPERAND (decl) + && DECL_ARTIFICIAL (decl) + && DECL_IGNORED_P (decl) + && !DECL_NAME (decl)) + SET_SSA_NAME_VAR_OR_IDENTIFIER (name, NULL_TREE); + } + return 0; } |