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authorEric Anholt <eric@anholt.net>2018-01-12 15:38:04 -0800
committerEric Anholt <eric@anholt.net>2018-01-12 21:58:18 -0800
commit762dd52951e3c23666b5c6d7c7836555a7a13bd1 (patch)
tree9bd79a68f38df4c01680a8347b1f52a5db93f030
parent8e4cba9d92fff72899390f62285c4f90c289bdc2 (diff)
broadcom/vc5: Use XOR instead of SUB for execute flags comparisons.
I think this should be equivalent other than power, and it's the kind of comparison we use for nir_op_ieq.
-rw-r--r--src/broadcom/compiler/nir_to_vir.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/broadcom/compiler/nir_to_vir.c b/src/broadcom/compiler/nir_to_vir.c
index 955083b717d..bc18b19f802 100644
--- a/src/broadcom/compiler/nir_to_vir.c
+++ b/src/broadcom/compiler/nir_to_vir.c
@@ -1596,7 +1596,7 @@ ntq_emit_intrinsic(struct v3d_compile *c, nir_intrinsic_instr *instr)
static void
ntq_activate_execute_for_block(struct v3d_compile *c)
{
- vir_PF(c, vir_SUB(c, c->execute, vir_uniform_ui(c, c->cur_block->index)),
+ vir_PF(c, vir_XOR(c, c->execute, vir_uniform_ui(c, c->cur_block->index)),
V3D_QPU_PF_PUSHZ);
vir_MOV_cond(c, V3D_QPU_COND_IFA, c->execute, vir_uniform_ui(c, 0));
@@ -1658,7 +1658,7 @@ ntq_emit_if(struct v3d_compile *c, nir_if *if_stmt)
vir_uniform_ui(c, after_block->index));
/* If everything points at ENDIF, then jump there immediately. */
- vir_PF(c, vir_SUB(c, c->execute,
+ vir_PF(c, vir_XOR(c, c->execute,
vir_uniform_ui(c, after_block->index)),
V3D_QPU_PF_PUSHZ);
vir_BRANCH(c, V3D_QPU_BRANCH_COND_ALLA);
@@ -1772,7 +1772,7 @@ ntq_emit_loop(struct v3d_compile *c, nir_loop *loop)
*
* XXX: Use the .ORZ flags update, instead.
*/
- vir_PF(c, vir_SUB(c,
+ vir_PF(c, vir_XOR(c,
c->execute,
vir_uniform_ui(c, c->loop_cont_block->index)),
V3D_QPU_PF_PUSHZ);