pan/midgard: Allow NULL argument in mir_has_arg

It's sometimes convenient to call this with no instruction specified. By
definition, a missing instruction cannot reference any argument, so
let's check for NULL and shortciruit to false.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-08-30 10:48:41 -07:00
parent bcc59ff04d
commit 72cbd2d4e7

View file

@ -566,6 +566,9 @@ v_mov(unsigned src, midgard_vector_alu_src mod, unsigned dest)
static inline bool
mir_has_arg(midgard_instruction *ins, unsigned arg)
{
if (!ins)
return false;
for (unsigned i = 0; i < ARRAY_SIZE(ins->src); ++i) {
if (ins->src[i] == arg)
return true;