From: Rhys Perry <pendingchaos02@gmail.com>
Date: Thu, 11 Jun 2020 13:22:13 +0000 (+0100)
Subject: aco: improve check for moving temporaries out of fixed definitions
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=82c265a51467ec8c112146bc7a2875609d5be0cf;p=mesa.git

aco: improve check for moving temporaries out of fixed definitions

No fossil-db changes.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5245>
---

diff --git a/src/amd/compiler/aco_register_allocation.cpp b/src/amd/compiler/aco_register_allocation.cpp
index 4841b5eb6f0..985aae4cafd 100644
--- a/src/amd/compiler/aco_register_allocation.cpp
+++ b/src/amd/compiler/aco_register_allocation.cpp
@@ -2085,7 +2085,7 @@ void register_allocation(Program *program, std::vector<TempSet>& live_out_per_bl
 
             adjust_max_used_regs(ctx, definition.regClass(), definition.physReg());
             /* check if the target register is blocked */
-            if (register_file[definition.physReg().reg()] != 0) {
+            if (register_file.test(definition.physReg(), definition.bytes())) {
                /* create parallelcopy pair to move blocking vars */
                std::set<std::pair<unsigned, unsigned>> vars = collect_vars(ctx, register_file, definition.physReg(), definition.size());