diff options
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 50a71e461f6..28899878bd0 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -4947,6 +4947,8 @@ glsl_to_tgsi_visitor::copy_propagate(void) !inst->dst[0].reladdr2 && !inst->saturate && inst->src[0].file != PROGRAM_ARRAY && + (inst->src[0].file != PROGRAM_OUTPUT || + this->shader->Stage != MESA_SHADER_TESS_CTRL) && !inst->src[0].reladdr && !inst->src[0].reladdr2 && !inst->src[0].negate && @@ -6602,10 +6604,7 @@ get_mesa_program_tgsi(struct gl_context *ctx, /* Perform optimizations on the instructions in the glsl_to_tgsi_visitor. */ v->simplify_cmp(); - - if (shader->Stage != MESA_SHADER_TESS_CTRL && - shader->Stage != MESA_SHADER_TESS_EVAL) - v->copy_propagate(); + v->copy_propagate(); while (v->eliminate_dead_code()); |