diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/function.c b/gcc/function.c index 8a67457..1cb8c44 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -4378,6 +4378,7 @@ assign_parms (fndecl, second_time) if (nominal_mode != passed_mode || promoted_nominal_mode != promoted_mode) { + int save_tree_used; /* ENTRY_PARM has been converted to PROMOTED_MODE, its mode, by the caller. We now have to convert it to NOMINAL_MODE, if different. However, PARMREG may be in @@ -4404,8 +4405,11 @@ assign_parms (fndecl, second_time) push_to_sequence (conversion_insns); tempreg = convert_to_mode (nominal_mode, tempreg, unsignedp); + /* TREE_USED gets set erroneously during expand_assignment. */ + save_tree_used = TREE_USED (parm); expand_assignment (parm, make_tree (nominal_type, tempreg), 0, 0); + TREE_USED (parm) = save_tree_used; conversion_insns = get_insns (); did_conversion = 1; end_sequence (); |