From a094928abcbab7f7e1d81704b616605a4521dc1a Mon Sep 17 00:00:00 2001 From: Connor Abbott Date: Tue, 30 Jul 2019 11:05:22 +0200 Subject: [PATCH] nir/find_array_copies: Use correct parent array length instr->type is the type of the array element, not the type of the array being dereferenced. Rather than fishing out the parent type, just use parent->num_children which should be the length plus 1. While we're here add another assert for the issue fixed by the previous commit. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111251 Fixes: 156306e5e62 ("nir/find_array_copies: Handle wildcards and overlapping copies") Reviewed-by: Jason Ekstrand --- src/compiler/nir/nir_opt_find_array_copies.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/compiler/nir/nir_opt_find_array_copies.c b/src/compiler/nir/nir_opt_find_array_copies.c index 28f77335d99..63609715c3a 100644 --- a/src/compiler/nir/nir_opt_find_array_copies.c +++ b/src/compiler/nir/nir_opt_find_array_copies.c @@ -100,14 +100,15 @@ node_for_deref(nir_deref_instr *instr, struct match_node *parent, } case nir_deref_type_array_wildcard: - idx = glsl_get_length(instr->type); + idx = parent->num_children - 1; break; case nir_deref_type_array: if (nir_src_is_const(instr->arr.index)) { idx = nir_src_as_uint(instr->arr.index); + assert(idx < parent->num_children - 1); } else { - idx = glsl_get_length(instr->type); + idx = parent->num_children - 1; } break; -- 2.30.2