From 338725652f84793805c55f08a7607c2f45d5512b Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Mon, 11 Oct 2021 14:31:59 +0200 Subject: [PATCH] middle-end/102683 - fix .DEFERRED_INIT expansion This avoids using an integer type for which we don't have an approprate mode when expanding .DEFERRED_INIT to a non-memory entity. 2021-10-11 Richard Biener PR middle-end/102683 * internal-fn.c (expand_DEFERRED_INIT): Check for mode availability before building an integer type for storage purposes. --- gcc/internal-fn.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c index 6bc256832f7d..b3638192fb90 100644 --- a/gcc/internal-fn.c +++ b/gcc/internal-fn.c @@ -3074,7 +3074,9 @@ expand_DEFERRED_INIT (internal_fn, gcall *stmt) tree init; if (tree_fits_uhwi_p (var_size) && (init_type == AUTO_INIT_PATTERN - || !is_gimple_reg_type (var_type))) + || !is_gimple_reg_type (var_type)) + && int_mode_for_size (tree_to_uhwi (var_size) * BITS_PER_UNIT, + 0).exists ()) { unsigned HOST_WIDE_INT total_bytes = tree_to_uhwi (var_size); unsigned char *buf = (unsigned char *) xmalloc (total_bytes); -- 2.47.2