diff options
Diffstat (limited to 'contrib/gcc/function.c')
| -rw-r--r-- | contrib/gcc/function.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/contrib/gcc/function.c b/contrib/gcc/function.c index daa2cab6f668..e055375d8604 100644 --- a/contrib/gcc/function.c +++ b/contrib/gcc/function.c @@ -1373,8 +1373,9 @@ put_var_into_stack (decl, rescan) if (function->decl == context) break; - /* If this is a variable-size object with a pseudo to address it, - put that pseudo into the stack, if the var is nonlocal. */ + /* If this is a variable-sized object or a structure passed by invisible + reference, with a pseudo to address it, put that pseudo into the stack + if the var is non-local. */ if (TREE_CODE (decl) != SAVE_EXPR && DECL_NONLOCAL (decl) && GET_CODE (reg) == MEM && GET_CODE (XEXP (reg, 0)) == REG @@ -1384,8 +1385,12 @@ put_var_into_stack (decl, rescan) decl_mode = promoted_mode = GET_MODE (reg); } + /* If this variable lives in the current function and we don't need to put it + in the stack for the sake of setjmp or the non-locality, try to keep it in + a register until we know we actually need the address. */ can_use_addressof = (function == 0 + && ! (TREE_CODE (decl) != SAVE_EXPR && DECL_NONLOCAL (decl)) && optimize > 0 /* FIXME make it work for promoted modes too */ && decl_mode == promoted_mode @@ -1404,9 +1409,6 @@ put_var_into_stack (decl, rescan) if (GET_CODE (reg) == REG) { - /* If this variable lives in the current function and we don't need - to put things in the stack for the sake of setjmp, try to keep it - in a register until we know we actually need the address. */ if (can_use_addressof) gen_mem_addressof (reg, decl, rescan); else |