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pan/bi: Handle asymmetric staging in bi_count_read_registers 

Needed for atomics.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12130>
This commit is contained in:
Alyssa Rosenzweig 2021-07-28 19:48:06 -04:00 committed by Marge Bot
parent e3f14b9850
commit 502ffe6fbf
1 changed files with 4 additions and 1 deletions
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5
src/panfrost/bifrost/bir.c
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@ -86,7 +86,10 @@ bi_count_staging_registers(const bi_instr *ins)
unsigned
bi_count_read_registers(const bi_instr *ins, unsigned s)
{
if (s == 0 && bi_opcode_props[ins->op].sr_read)
/* PATOM_C reads 1 but writes 2 */
if (s == 0 && ins->op == BI_OPCODE_PATOM_C_I32)
return 1;
else if (s == 0 && bi_opcode_props[ins->op].sr_read)
return bi_count_staging_registers(ins);
else
return 1;