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diff --git a/src/gallium/auxiliary/gallivm/lp_bld_blend_aos.c b/src/gallium/auxiliary/gallivm/lp_bld_blend_aos.c
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+++ b/src/gallium/auxiliary/gallivm/lp_bld_blend_aos.c
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+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+/**
+ * @file
+ * Blend LLVM IR generation -- AoS layout.
+ *
+ * AoS blending is in general much slower than SoA, but there are some cases
+ * where it might be faster. In particular, if a pixel is rendered only once
+ * then the overhead of tiling and untiling will dominate over the speedup that
+ * SoA gives. So we might want to detect such cases and fallback to AoS in the
+ * future, but for now this function is here for historical/benchmarking
+ * purposes.
+ *
+ * Run lp_blend_test after any change to this file.
+ *
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ */
+
+
+#include "pipe/p_state.h"
+#include "util/u_debug.h"
+
+#include "lp_bld_type.h"
+#include "lp_bld_const.h"
+#include "lp_bld_arit.h"
+#include "lp_bld_logic.h"
+#include "lp_bld_swizzle.h"
+#include "lp_bld_blend.h"
+#include "lp_bld_debug.h"
+
+
+/**
+ * We may the same values several times, so we keep them here to avoid
+ * recomputing them. Also reusing the values allows us to do simplifications
+ * that LLVM optimization passes wouldn't normally be able to do.
+ */
+struct lp_build_blend_aos_context
+{
+ struct lp_build_context base;
+
+ LLVMValueRef src;
+ LLVMValueRef dst;
+ LLVMValueRef const_;
+
+ LLVMValueRef inv_src;
+ LLVMValueRef inv_dst;
+ LLVMValueRef inv_const;
+ LLVMValueRef saturate;
+
+ LLVMValueRef rgb_src_factor;
+ LLVMValueRef alpha_src_factor;
+ LLVMValueRef rgb_dst_factor;
+ LLVMValueRef alpha_dst_factor;
+};
+
+
+static LLVMValueRef
+lp_build_blend_factor_unswizzled(struct lp_build_blend_aos_context *bld,
+ unsigned factor,
+ boolean alpha)
+{
+ switch (factor) {
+ case PIPE_BLENDFACTOR_ZERO:
+ return bld->base.zero;
+ case PIPE_BLENDFACTOR_ONE:
+ return bld->base.one;
+ case PIPE_BLENDFACTOR_SRC_COLOR:
+ case PIPE_BLENDFACTOR_SRC_ALPHA:
+ return bld->src;
+ case PIPE_BLENDFACTOR_DST_COLOR:
+ case PIPE_BLENDFACTOR_DST_ALPHA:
+ return bld->dst;
+ case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
+ if(alpha)
+ return bld->base.one;
+ else {
+ if(!bld->inv_dst)
+ bld->inv_dst = lp_build_comp(&bld->base, bld->dst);
+ if(!bld->saturate)
+ bld->saturate = lp_build_min(&bld->base, bld->src, bld->inv_dst);
+ return bld->saturate;
+ }
+ case PIPE_BLENDFACTOR_CONST_COLOR:
+ case PIPE_BLENDFACTOR_CONST_ALPHA:
+ return bld->const_;
+ case PIPE_BLENDFACTOR_SRC1_COLOR:
+ case PIPE_BLENDFACTOR_SRC1_ALPHA:
+ /* TODO */
+ assert(0);
+ return bld->base.zero;
+ case PIPE_BLENDFACTOR_INV_SRC_COLOR:
+ case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
+ if(!bld->inv_src)
+ bld->inv_src = lp_build_comp(&bld->base, bld->src);
+ return bld->inv_src;
+ case PIPE_BLENDFACTOR_INV_DST_COLOR:
+ case PIPE_BLENDFACTOR_INV_DST_ALPHA:
+ if(!bld->inv_dst)
+ bld->inv_dst = lp_build_comp(&bld->base, bld->dst);
+ return bld->inv_dst;
+ case PIPE_BLENDFACTOR_INV_CONST_COLOR:
+ case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
+ if(!bld->inv_const)
+ bld->inv_const = lp_build_comp(&bld->base, bld->const_);
+ return bld->inv_const;
+ case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
+ case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
+ /* TODO */
+ assert(0);
+ return bld->base.zero;
+ default:
+ assert(0);
+ return bld->base.zero;
+ }
+}
+
+
+enum lp_build_blend_swizzle {
+ LP_BUILD_BLEND_SWIZZLE_RGBA = 0,
+ LP_BUILD_BLEND_SWIZZLE_AAAA = 1
+};
+
+
+/**
+ * How should we shuffle the base factor.
+ */
+static enum lp_build_blend_swizzle
+lp_build_blend_factor_swizzle(unsigned factor)
+{
+ switch (factor) {
+ case PIPE_BLENDFACTOR_ONE:
+ case PIPE_BLENDFACTOR_ZERO:
+ case PIPE_BLENDFACTOR_SRC_COLOR:
+ case PIPE_BLENDFACTOR_DST_COLOR:
+ case PIPE_BLENDFACTOR_CONST_COLOR:
+ case PIPE_BLENDFACTOR_SRC1_COLOR:
+ case PIPE_BLENDFACTOR_INV_SRC_COLOR:
+ case PIPE_BLENDFACTOR_INV_DST_COLOR:
+ case PIPE_BLENDFACTOR_INV_CONST_COLOR:
+ case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
+ return LP_BUILD_BLEND_SWIZZLE_RGBA;
+ case PIPE_BLENDFACTOR_SRC_ALPHA:
+ case PIPE_BLENDFACTOR_DST_ALPHA:
+ case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
+ case PIPE_BLENDFACTOR_SRC1_ALPHA:
+ case PIPE_BLENDFACTOR_CONST_ALPHA:
+ case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
+ case PIPE_BLENDFACTOR_INV_DST_ALPHA:
+ case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
+ case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
+ return LP_BUILD_BLEND_SWIZZLE_AAAA;
+ default:
+ assert(0);
+ return LP_BUILD_BLEND_SWIZZLE_RGBA;
+ }
+}
+
+
+static LLVMValueRef
+lp_build_blend_swizzle(struct lp_build_blend_aos_context *bld,
+ LLVMValueRef rgb,
+ LLVMValueRef alpha,
+ enum lp_build_blend_swizzle rgb_swizzle,
+ unsigned alpha_swizzle)
+{
+ if(rgb == alpha) {
+ if(rgb_swizzle == LP_BUILD_BLEND_SWIZZLE_RGBA)
+ return rgb;
+ if(rgb_swizzle == LP_BUILD_BLEND_SWIZZLE_AAAA)
+ return lp_build_broadcast_aos(&bld->base, rgb, alpha_swizzle);
+ }
+ else {
+ if(rgb_swizzle == LP_BUILD_BLEND_SWIZZLE_RGBA) {
+ boolean cond[4] = {0, 0, 0, 0};
+ cond[alpha_swizzle] = 1;
+ return lp_build_select_aos(&bld->base, alpha, rgb, cond);
+ }
+ if(rgb_swizzle == LP_BUILD_BLEND_SWIZZLE_AAAA) {
+ unsigned char swizzle[4];
+ swizzle[0] = alpha_swizzle;
+ swizzle[1] = alpha_swizzle;
+ swizzle[2] = alpha_swizzle;
+ swizzle[3] = alpha_swizzle;
+ swizzle[alpha_swizzle] += 4;
+ return lp_build_swizzle2_aos(&bld->base, rgb, alpha, swizzle);
+ }
+ }
+ assert(0);
+ return bld->base.undef;
+}
+
+
+/**
+ * @sa http://www.opengl.org/sdk/docs/man/xhtml/glBlendFuncSeparate.xml
+ */
+static LLVMValueRef
+lp_build_blend_factor(struct lp_build_blend_aos_context *bld,
+ LLVMValueRef factor1,
+ unsigned rgb_factor,
+ unsigned alpha_factor,
+ unsigned alpha_swizzle)
+{
+ LLVMValueRef rgb_factor_;
+ LLVMValueRef alpha_factor_;
+ LLVMValueRef factor2;
+ enum lp_build_blend_swizzle rgb_swizzle;
+
+ rgb_factor_ = lp_build_blend_factor_unswizzled(bld, rgb_factor, FALSE);
+ alpha_factor_ = lp_build_blend_factor_unswizzled(bld, alpha_factor, TRUE);
+
+ rgb_swizzle = lp_build_blend_factor_swizzle(rgb_factor);
+
+ factor2 = lp_build_blend_swizzle(bld, rgb_factor_, alpha_factor_, rgb_swizzle, alpha_swizzle);
+
+ return lp_build_mul(&bld->base, factor1, factor2);
+}
+
+
+boolean
+lp_build_blend_func_commutative(unsigned func)
+{
+ switch (func) {
+ case PIPE_BLEND_ADD:
+ case PIPE_BLEND_MIN:
+ case PIPE_BLEND_MAX:
+ return TRUE;
+ case PIPE_BLEND_SUBTRACT:
+ case PIPE_BLEND_REVERSE_SUBTRACT:
+ return FALSE;
+ default:
+ assert(0);
+ return TRUE;
+ }
+}
+
+
+boolean
+lp_build_blend_func_reverse(unsigned rgb_func, unsigned alpha_func)
+{
+ if(rgb_func == alpha_func)
+ return FALSE;
+ if(rgb_func == PIPE_BLEND_SUBTRACT && alpha_func == PIPE_BLEND_REVERSE_SUBTRACT)
+ return TRUE;
+ if(rgb_func == PIPE_BLEND_REVERSE_SUBTRACT && alpha_func == PIPE_BLEND_SUBTRACT)
+ return TRUE;
+ return FALSE;
+}
+
+
+/**
+ * @sa http://www.opengl.org/sdk/docs/man/xhtml/glBlendEquationSeparate.xml
+ */
+LLVMValueRef
+lp_build_blend_func(struct lp_build_context *bld,
+ unsigned func,
+ LLVMValueRef term1,
+ LLVMValueRef term2)
+{
+ switch (func) {
+ case PIPE_BLEND_ADD:
+ return lp_build_add(bld, term1, term2);
+ break;
+ case PIPE_BLEND_SUBTRACT:
+ return lp_build_sub(bld, term1, term2);
+ case PIPE_BLEND_REVERSE_SUBTRACT:
+ return lp_build_sub(bld, term2, term1);
+ case PIPE_BLEND_MIN:
+ return lp_build_min(bld, term1, term2);
+ case PIPE_BLEND_MAX:
+ return lp_build_max(bld, term1, term2);
+ default:
+ assert(0);
+ return bld->zero;
+ }
+}
+
+
+LLVMValueRef
+lp_build_blend_aos(LLVMBuilderRef builder,
+ const struct pipe_blend_state *blend,
+ struct lp_type type,
+ LLVMValueRef src,
+ LLVMValueRef dst,
+ LLVMValueRef const_,
+ unsigned alpha_swizzle)
+{
+ struct lp_build_blend_aos_context bld;
+ LLVMValueRef src_term;
+ LLVMValueRef dst_term;
+
+ /* FIXME */
+ assert(blend->independent_blend_enable == 0);
+ assert(blend->rt[0].colormask == 0xf);
+
+ if(!blend->rt[0].blend_enable)
+ return src;
+
+ /* It makes no sense to blend unless values are normalized */
+ assert(type.norm);
+
+ /* Setup build context */
+ memset(&bld, 0, sizeof bld);
+ lp_build_context_init(&bld.base, builder, type);
+ bld.src = src;
+ bld.dst = dst;
+ bld.const_ = const_;
+
+ /* TODO: There are still a few optimization opportunities here. For certain
+ * combinations it is possible to reorder the operations and therefore saving
+ * some instructions. */
+
+ src_term = lp_build_blend_factor(&bld, src, blend->rt[0].rgb_src_factor,
+ blend->rt[0].alpha_src_factor, alpha_swizzle);
+ dst_term = lp_build_blend_factor(&bld, dst, blend->rt[0].rgb_dst_factor,
+ blend->rt[0].alpha_dst_factor, alpha_swizzle);
+
+ lp_build_name(src_term, "src_term");
+ lp_build_name(dst_term, "dst_term");
+
+ if(blend->rt[0].rgb_func == blend->rt[0].alpha_func) {
+ return lp_build_blend_func(&bld.base, blend->rt[0].rgb_func, src_term, dst_term);
+ }
+ else {
+ /* Seperate RGB / A functions */
+
+ LLVMValueRef rgb;
+ LLVMValueRef alpha;
+
+ rgb = lp_build_blend_func(&bld.base, blend->rt[0].rgb_func, src_term, dst_term);
+ alpha = lp_build_blend_func(&bld.base, blend->rt[0].alpha_func, src_term, dst_term);
+
+ return lp_build_blend_swizzle(&bld, rgb, alpha, LP_BUILD_BLEND_SWIZZLE_RGBA, alpha_swizzle);
+ }
+}