diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/gcc/function.c b/gcc/function.c index 61ee42127ad..00a673ac4bd 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -625,22 +625,30 @@ assign_stack_temp_for_type (enum machine_mode mode, HOST_WIDE_INT size, /* Try to find an available, already-allocated temporary of the proper mode which meets the size and alignment requirements. Choose the - smallest one with the closest alignment. */ - for (p = avail_temp_slots; p; p = p->next) + smallest one with the closest alignment. + + If assign_stack_temp is called outside of the tree->rtl expansion, + we cannot reuse the stack slots (that may still refer to + VIRTUAL_STACK_VARS_REGNUM). */ + if (!virtuals_instantiated) { - if (p->align >= align && p->size >= size && GET_MODE (p->slot) == mode - && objects_must_conflict_p (p->type, type) - && (best_p == 0 || best_p->size > p->size - || (best_p->size == p->size && best_p->align > p->align))) + for (p = avail_temp_slots; p; p = p->next) { - if (p->align == align && p->size == size) + if (p->align >= align && p->size >= size + && GET_MODE (p->slot) == mode + && objects_must_conflict_p (p->type, type) + && (best_p == 0 || best_p->size > p->size + || (best_p->size == p->size && best_p->align > p->align))) { - selected = p; - cut_slot_from_list (selected, &avail_temp_slots); - best_p = 0; - break; + if (p->align == align && p->size == size) + { + selected = p; + cut_slot_from_list (selected, &avail_temp_slots); + best_p = 0; + break; + } + best_p = p; } - best_p = p; } } |