diff options
Diffstat (limited to 'gcc/tree-gimple.c')
| -rw-r--r-- | gcc/tree-gimple.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/tree-gimple.c b/gcc/tree-gimple.c index 2a62aeb..284f577 100644 --- a/gcc/tree-gimple.c +++ b/gcc/tree-gimple.c @@ -268,6 +268,8 @@ is_gimple_reg_type (tree type) bool is_gimple_reg (tree t) { + var_ann_t ann; + if (TREE_CODE (t) == SSA_NAME) t = SSA_NAME_VAR (t); @@ -305,9 +307,16 @@ is_gimple_reg (tree t) if (TREE_CODE (TREE_TYPE (t)) == COMPLEX_TYPE) return DECL_COMPLEX_GIMPLE_REG_P (t); + /* Some compiler temporaries are created to be used exclusively in + virtual operands (currently memory tags and sub-variables). + These variables should never be considered GIMPLE registers. */ + if (DECL_ARTIFICIAL (t) && (ann = var_ann (t)) != NULL) + return ann->mem_tag_kind == NOT_A_TAG; + return true; } + /* Returns true if T is a GIMPLE formal temporary variable. */ bool |