diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2023-08-10 09:22:03 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-08-10 09:22:03 +0200 |
| commit | b129d6b5f5f13995d57d677afcb3e94d0d9c327f (patch) | |
| tree | f76640eb69153f17fbcbc3a67c884ca0124171ff /gcc | |
| parent | 0c563a935c47e507ad97e15860ac017c14877b31 (diff) | |
| download | gcc-b129d6b5f5f13995d57d677afcb3e94d0d9c327f.zip gcc-b129d6b5f5f13995d57d677afcb3e94d0d9c327f.tar.gz gcc-b129d6b5f5f13995d57d677afcb3e94d0d9c327f.tar.bz2 | |
expr: Small optimization [PR102989]
Small optimization to avoid testing modifier multiple times.
2023-08-10 Jakub Jelinek <jakub@redhat.com>
PR c/102989
* expr.cc (expand_expr_real_1) <case MEM_REF>: Add an early return for
EXPAND_WRITE or EXPAND_MEMORY modifiers to avoid testing it multiple
times.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/expr.cc | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/gcc/expr.cc b/gcc/expr.cc index 174f8ac..9a37bff 100644 --- a/gcc/expr.cc +++ b/gcc/expr.cc @@ -11248,17 +11248,15 @@ expand_expr_real_1 (tree exp, rtx target, machine_mode tmode, set_mem_addr_space (temp, as); if (TREE_THIS_VOLATILE (exp)) MEM_VOLATILE_P (temp) = 1; - if (modifier != EXPAND_WRITE - && modifier != EXPAND_MEMORY - && !inner_reference_p + if (modifier == EXPAND_WRITE || modifier == EXPAND_MEMORY) + return temp; + if (!inner_reference_p && mode != BLKmode && align < GET_MODE_ALIGNMENT (mode)) temp = expand_misaligned_mem_ref (temp, mode, unsignedp, align, modifier == EXPAND_STACK_PARM ? NULL_RTX : target, alt_rtl); - if (reverse - && modifier != EXPAND_MEMORY - && modifier != EXPAND_WRITE) + if (reverse) temp = flip_storage_order (mode, temp); return temp; } |