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panfrost: Fix OOB array access compiler warning. 

-1 is used to select "choose the dest type", but we were dereffing src[-1]
anyway and the compiler is not a fan.

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6462>
This commit is contained in:
Eric Anholt 2020-08-25 10:20:44 -07:00 committed by Marge Bot
parent ccb5e0b02b
commit ecab580d48
1 changed files with 1 additions and 1 deletions
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2
src/panfrost/bifrost/bir.c
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@ -106,7 +106,7 @@ bi_get_component_count(bi_instruction *ins, signed src)
return (src <= 0) ? ins->vector_channels : 1;
} else {
unsigned dest_bytes = nir_alu_type_get_type_size(ins->dest_type);
unsigned src_bytes = nir_alu_type_get_type_size(ins->src_types[src]);
unsigned src_bytes = nir_alu_type_get_type_size(ins->src_types[MAX2(src, 0)]);
/* If there's either f32 on either end, it's only a single
* component, etc. */