[PATCH] PR tree-optimization/97546 Bail out of find_bswap_or_nop on non-INTEGER_CST sizes

[Jakub Jelinek]

On Mon, Oct 26, 2020 at 11:32:43AM +0000, Kyrylo Tkachov wrote:
> Thanks, that makes sense.
> Is the attached patch ok?

--- a/gcc/gimple-ssa-store-merging.c
+++ b/gcc/gimple-ssa-store-merging.c
@@ -851,12 +851,16 @@ find_bswap_or_nop_finalize (struct symbolic_number *n, uint64_t *cmpxchg,
 gimple *
 find_bswap_or_nop (gimple *stmt, struct symbolic_number *n, bool *bswap)
 {
+  tree type_size = TYPE_SIZE_UNIT (gimple_expr_type (stmt));
+  if (!tree_fits_uhwi_p  (type_size))
+    return NULL;

Just one space before ( above.  Ok for trunk with that nit fixed.
Thanks.

	Jakub