From 225276c696341f6bf9c97969b977ffdebc3c920a Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Wed, 19 Sep 2012 13:27:59 -0700 Subject: [PATCH] i965: Complain about variable index lowering when INTEL_DEBUG=perf. Signed-off-by: Kenneth Graunke Reviewed-by: Eric Anholt --- src/mesa/drivers/dri/i965/brw_shader.cpp | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp index 1cd9095f2ea..f8482e1695c 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.cpp +++ b/src/mesa/drivers/dri/i965/brw_shader.cpp @@ -143,8 +143,14 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg) bool temp = stage == MESA_SHADER_FRAGMENT; bool uniform = stage == MESA_SHADER_FRAGMENT; - lower_variable_index_to_cond_assign(shader->ir, - input, output, temp, uniform); + bool lowered_variable_indexing = + lower_variable_index_to_cond_assign(shader->ir, + input, output, temp, uniform); + + if (unlikely((INTEL_DEBUG & DEBUG_PERF) && lowered_variable_indexing)) { + perf_debug("Unsupported form of variable indexing in FS; falling " + "back to very inefficient code generation\n"); + } /* FINISHME: Do this before the variable index lowering. */ lower_ubo_reference(&shader->base, shader->ir); -- 2.30.2