From 97f4250a7cba73a7f221e21b5dd76f0694aca2c6 Mon Sep 17 00:00:00 2001
From: Rhys Perry <pendingchaos02@gmail.com>
Date: Wed, 11 Sep 2024 11:06:54 +0100
Subject: [PATCH] nir: skip opt_loop_peel_initial_break if continue block only
 has phis
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Doing that optimization wouldn't do anything useful in this case.

nir_block_has_non_copy() is used by opt_loop_peel_initial_break().

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/31002>
---
 src/compiler/nir/nir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/compiler/nir/nir.c b/src/compiler/nir/nir.c
index 06e25a5cbf8..96309cf9a4b 100644
--- a/src/compiler/nir/nir.c
+++ b/src/compiler/nir/nir.c
@@ -3507,6 +3507,8 @@ nir_block_contains_work(nir_block *block)
       return true;
 
    nir_foreach_instr(instr, block) {
+      if (instr->type == nir_instr_type_phi)
+         continue;
       if (instr->type != nir_instr_type_alu ||
           !nir_op_is_vec_or_mov(nir_instr_as_alu(instr)->op))
          return true;