v3d: Stop treating exec masking specially.

In our backend, the successor edges from the blocks only point to where
QPU control flow goes, not where the notional control flow goes from a
"break" or "continue" modifying the execution mask to resume writing to
some channels later.  As a result, this attempt at restricting live ranges
ended up missing the live range of a value where a conditional
break/continue was present in a loop before the later def of a variable.
The previous commit ended up fixing the problem that the flag tried to
solve.

Fixes glsl-vs-loop-continue.shader_test and/or
glsl-vs-loop-redundant-condition.shader_test based on register allocation
results.

1 files changed, 0 insertions, 1 deletions

diff --git a/src/broadcom/compiler/nir_to_vir.c b/src/broadcom/compiler/nir_to_vir.c
index 5d2c872f2aa..d4f6088bcf2 100644
--- a/src/broadcom/compiler/nir_to_vir.c
+++ b/src/broadcom/compiler/nir_to_vir.c
@@ -405,7 +405,6 @@ ntq_store_dest(struct v3d_compile *c, nir_dest *dest, int chan,
                         c->cursor = vir_after_inst(last_inst);
 
                         vir_set_cond(last_inst, V3D_QPU_COND_IFA);
-                        last_inst->cond_is_exec_mask = true;
                 }
         }
 }