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aco/insert_exec_mask: ensure top mask is not a temporary at loop exits

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This is problematic when the successor of the loop exit is an invert
block. It assumes that the top mask is Operand(bld.lm) and doesn't change
it when entering the else branch.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11348
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29767>
This commit is contained in:
Rhys Perry 2024-06-18 14:15:04 +01:00 • committed by Marge Bot
parent 5c6c8182c8
commit 71afacff39
1 changed files with 1 additions and 0 deletions
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1
src/amd/compiler/aco_insert_exec_mask.cpp
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@ -270,6 +270,7 @@ add_coupling_code(exec_ctx& ctx, Block* block, std::vector<aco_ptr<Instruction>>
for (unsigned i = 1; i < phi->operands.size(); i++)
phi->operands[i] =
get_exec_op(ctx.info[header_preds[i]].exec[info.num_exec_masks - 1].first);
restore_exec = true;
}
if (info.has_divergent_break) {