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agx: Count write registers, not components

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Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11718>
This commit is contained in:
Alyssa Rosenzweig 2021-06-19 14:33:12 -04:00 • committed by Marge Bot
parent 0ef93554e1
commit 2e1ba82060
1 changed files with 8 additions and 6 deletions
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14
src/asahi/compiler/agx_register_allocate.c
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@ -30,20 +30,22 @@
* TODO: Handle phi nodes.
*/
/** Returns number of components written by an instruction */
/** Returns number of registers written by an instruction */
static unsigned
agx_write_components(agx_instr *I)
agx_write_registers(agx_instr *I, unsigned d)
{
unsigned size = I->dest[d].size == AGX_SIZE_32 ? 2 : 1;
switch (I->op) {
case AGX_OPCODE_LD_VARY:
case AGX_OPCODE_DEVICE_LOAD:
case AGX_OPCODE_TEXTURE_SAMPLE:
case AGX_OPCODE_LD_TILE:
return 4;
return 8;
case AGX_OPCODE_LD_VARY_FLAT:
return 3;
return 6;
default:
return 1;
return size;
}
}
@ -107,7 +109,7 @@ agx_ra(agx_context *ctx)
unsigned size = ins->dest[d].size == AGX_SIZE_32 ? 2 : 1;
if (size == 2 && usage & 1) usage++;
unsigned v = usage;
usage += agx_write_components(ins) * size;
usage += agx_write_registers(ins, d);
alloc[ins->dest[d].value] = v;
ins->dest[d] = agx_replace_index(ins->dest[d], agx_register(v, ins->dest[d].size));
}