From d1d56f5f9afceab732e46c43010738c4936fb9b9 Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Fri, 1 Mar 2019 14:39:14 -0800 Subject: intel/fs: Don't assert on b2f with a saturate modifier This ran afoul of Iris's use of nir_lower_clamp_color_outputs which applies fsat() before writes to vertex shader color outpus. Reviewed-by: Kenneth Graunke Fixes: 7725d609387 ("intel/fs: Emit better code for b2f(inot(a)) and b2i(inot(a))") --- src/intel/compiler/brw_fs_nir.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/intel/compiler') diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp index fb373e1757e..a4fd29ff9ec 100644 --- a/src/intel/compiler/brw_fs_nir.cpp +++ b/src/intel/compiler/brw_fs_nir.cpp @@ -800,8 +800,10 @@ fs_visitor::try_emit_b2fi_of_inot(const fs_builder &bld, prepare_alu_destination_and_sources(bld, inot_instr, &op, false); + /* Ignore the saturate modifier, if there is one. The result of the + * arithmetic can only be 0 or 1, so the clamping will do nothing anyway. + */ bld.ADD(result, op, brw_imm_d(1)); - assert(!instr->dest.saturate); return true; } -- cgit v1.2.3