Mesa (master): freedreno/ir3/ra: fix failed assert for a0/p0
Rob Clark
robclark at kemper.freedesktop.org
Fri Jul 10 15:58:21 UTC 2015
Module: Mesa
Branch: master
Commit: a1a6f007823f203755fb54a1f3b7f53ae6cbfef0
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a1a6f007823f203755fb54a1f3b7f53ae6cbfef0
Author: Rob Clark <robclark at freedesktop.org>
Date: Sun Jul 5 19:53:10 2015 -0400
freedreno/ir3/ra: fix failed assert for a0/p0
The address and predicate register are special, they don't get assigned
in RA. So do a better job of ignoring them rather than hitting later
asserts.
Signed-off-by: Rob Clark <robclark at freedesktop.org>
---
src/gallium/drivers/freedreno/ir3/ir3_ra.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_ra.c b/src/gallium/drivers/freedreno/ir3/ir3_ra.c
index de48ecf..eaf3b3c 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_ra.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_ra.c
@@ -469,6 +469,11 @@ ra_block_find_definers(struct ir3_ra_ctx *ctx, struct ir3_block *block)
struct ir3_ra_instr_data *id = &ctx->instrd[instr->ip];
if (instr->regs_count == 0)
continue;
+ /* couple special cases: */
+ if (writes_addr(instr) || writes_pred(instr)) {
+ id->cls = -1;
+ continue;
+ }
id->defn = get_definer(ctx, instr, &id->sz, &id->off);
id->cls = size_to_class(id->sz, is_half(id->defn));
}
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