diff options
Diffstat (limited to 'gnu/egcs/gcc')
| -rw-r--r-- | gnu/egcs/gcc/protector.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gnu/egcs/gcc/protector.c b/gnu/egcs/gcc/protector.c index e8bf3f97aa5..14fa5ad2dfd 100644 --- a/gnu/egcs/gcc/protector.c +++ b/gnu/egcs/gcc/protector.c @@ -1559,6 +1559,29 @@ change_arg_use_in_operand (x, orig, new, size) } break; + case SET: + /* Handle special case of "set (REG or MEM) (incoming_args)". + It means that the the address of the 1st argument is stored. */ + if (GET_CODE (orig) == MEM + && XEXP (x, 1) == virtual_incoming_args_rtx) + { + offset = 0; + + /* the operand related to the sweep variable */ + if (AUTO_OFFSET(XEXP (orig, 0)) <= offset && + offset < AUTO_OFFSET(XEXP (orig, 0)) + size) { + + offset = AUTO_OFFSET(XEXP (new, 0)) + + (offset - AUTO_OFFSET(XEXP (orig, 0))); + + XEXP (x, 1) = plus_constant (virtual_stack_vars_rtx, offset); + XEXP (x, 1)->used = 1; + + return; + } + } + break; + case CALL_PLACEHOLDER: change_arg_use_of_insns (XEXP (x, 0), orig, new, size); change_arg_use_of_insns (XEXP (x, 1), orig, new, size); |