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panfrost/midgard: Don't promote non-SSA to pipeline registers 

Fixes: 33800f4612 ("panfrost/midgard: Implement "pipeline register"
prepass")

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-06-04 21:35:47 +00:00
parent 36cb209787
commit bfa9f56a2a
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/panfrost/midgard/midgard_ra_pipeline.c
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@ -52,7 +52,9 @@ mir_pipeline_ins(
if (ins->compact_branch)
return false;
if ((dest < 0) || (dest >= SSA_FIXED_MINIMUM))
/* Don't allow non-SSA. Pipelining registers is theoretically possible,
* but the analysis is much hairier, so don't bother quite yet */
if ((dest < 0) || (dest >= ctx->func->impl->ssa_alloc))
return false;
/* We want to know if we live after this bundle, so check if