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-rw-r--r--src/glsl/nir/nir_opt_copy_propagate.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/glsl/nir/nir_opt_copy_propagate.c b/src/glsl/nir/nir_opt_copy_propagate.c
index 7d8bdd7f2ca..cfc8e331128 100644
--- a/src/glsl/nir/nir_opt_copy_propagate.c
+++ b/src/glsl/nir/nir_opt_copy_propagate.c
@@ -55,10 +55,15 @@ static bool is_move(nir_alu_instr *instr)
static bool is_vec(nir_alu_instr *instr)
{
- for (unsigned i = 0; i < nir_op_infos[instr->op].num_inputs; i++)
+ for (unsigned i = 0; i < nir_op_infos[instr->op].num_inputs; i++) {
if (!instr->src[i].src.is_ssa)
return false;
+ /* we handle modifiers in a separate pass */
+ if (instr->src[i].abs || instr->src[i].negate)
+ return false;
+ }
+
return instr->op == nir_op_vec2 ||
instr->op == nir_op_vec3 ||
instr->op == nir_op_vec4;