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glsl: catch out of bounds access in the debug version

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Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6067>
This commit is contained in:
Marcin Ślusarz 2020-07-24 17:59:36 +02:00 • committed by Marge Bot
parent eac0ba7fc1
commit 59bb0ff945
1 changed files with 2 additions and 1 deletions
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3
src/compiler/glsl/lower_precision.cpp
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@ -445,8 +445,9 @@ is_lowerable_builtin(ir_call *ir,
*/
const struct util_format_description *desc =
util_format_description(resource->data.image_format);
unsigned i =
int i =
util_format_get_first_non_void_channel(resource->data.image_format);
assert(i >= 0);
if (desc->channel[i].pure_integer ||
desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT)