'lp_fs_sse.c',
'lp_fs_llvm.c',
'lp_bld_arit.c',
+ 'lp_bld_const.c',
'lp_bld_pack.c',
'lp_bld_unpack.c',
'lp_bld_load.c',
*/
-#include "pipe/p_state.h"
+#include "util/u_debug.h"
#include "lp_bld_type.h"
#include "lp_bld_arit.h"
-LLVMValueRef
-lp_build_undef(union lp_type type)
-{
- LLVMTypeRef vec_type = lp_build_vec_type(type);
- return LLVMGetUndef(vec_type);
-}
-
-
-LLVMValueRef
-lp_build_zero(union lp_type type)
-{
- LLVMTypeRef vec_type = lp_build_vec_type(type);
- return LLVMConstNull(vec_type);
-}
-
-
-LLVMValueRef
-lp_build_one(union lp_type type)
-{
- LLVMTypeRef elem_type;
- LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
- unsigned i;
-
- assert(type.length <= LP_MAX_VECTOR_LENGTH);
-
- elem_type = lp_build_elem_type(type);
-
- if(type.floating)
- elems[0] = LLVMConstReal(elem_type, 1.0);
- else if(type.fixed)
- elems[0] = LLVMConstInt(elem_type, 1LL << (type.width/2), 0);
- else if(!type.norm)
- elems[0] = LLVMConstInt(elem_type, 1, 0);
- else {
- /* special case' -- 1.0 for normalized types is more easily attained if
- * we start with a vector consisting of all bits set */
- LLVMTypeRef vec_type = LLVMVectorType(elem_type, type.length);
- LLVMValueRef vec = LLVMConstAllOnes(vec_type);
-
- if(type.sign)
- vec = LLVMConstLShr(vec, LLVMConstInt(LLVMInt32Type(), 1, 0));
-
- return vec;
- }
-
- for(i = 1; i < type.length; ++i)
- elems[i] = elems[0];
-
- return LLVMConstVector(elems, type.length);
-}
-
-
-LLVMValueRef
-lp_build_const_aos(union lp_type type,
- double r, double g, double b, double a,
- const unsigned char *swizzle)
-{
- const unsigned char default_swizzle[4] = {0, 1, 2, 3};
- LLVMTypeRef elem_type;
- LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
- unsigned i;
-
- assert(type.length % 4 == 0);
- assert(type.length <= LP_MAX_VECTOR_LENGTH);
-
- elem_type = lp_build_elem_type(type);
-
- if(swizzle == NULL)
- swizzle = default_swizzle;
-
- if(type.floating) {
- elems[swizzle[0]] = LLVMConstReal(elem_type, r);
- elems[swizzle[1]] = LLVMConstReal(elem_type, g);
- elems[swizzle[2]] = LLVMConstReal(elem_type, b);
- elems[swizzle[3]] = LLVMConstReal(elem_type, a);
- }
- else {
- unsigned shift;
- long long llscale;
- double dscale;
-
- if(type.fixed)
- shift = type.width/2;
- else if(type.norm)
- shift = type.sign ? type.width - 1 : type.width;
- else
- shift = 0;
-
- llscale = (long long)1 << shift;
- dscale = (double)llscale;
- assert((long long)dscale == llscale);
-
- elems[swizzle[0]] = LLVMConstInt(elem_type, r*dscale + 0.5, 0);
- elems[swizzle[1]] = LLVMConstInt(elem_type, g*dscale + 0.5, 0);
- elems[swizzle[2]] = LLVMConstInt(elem_type, b*dscale + 0.5, 0);
- elems[swizzle[3]] = LLVMConstInt(elem_type, a*dscale + 0.5, 0);
- }
-
- for(i = 4; i < type.length; ++i)
- elems[i] = elems[i % 4];
-
- return LLVMConstVector(elems, type.length);
-}
-
-
static LLVMValueRef
lp_build_intrinsic_binary(LLVMBuilderRef builder,
const char *name,
union lp_type type;
-/*
- * Constants
- */
-
-
-LLVMValueRef
-lp_build_undef(union lp_type type);
-
-
-LLVMValueRef
-lp_build_zero(union lp_type type);
-
-
-LLVMValueRef
-lp_build_one(union lp_type type);
-
-
-LLVMValueRef
-lp_build_const_aos(union lp_type type,
- double r, double g, double b, double a,
- const unsigned char *swizzle);
-
-/*
- * Basic arithmetic
- */
-
-
/**
+ * We need most of the information here in order to correctly and efficiently
+ * translate an arithmetic operation into LLVM IR. Putting it here avoids the
+ * trouble of passing it as parameters.
*/
struct lp_build_context
{
LLVMBuilderRef builder;
+ /**
+ * This not only describes the input/output LLVM types, but also whether
+ * to normalize/clamp the results.
+ */
union lp_type type;
+ /** Same as lp_build_undef(type) */
LLVMValueRef undef;
+
+ /** Same as lp_build_zero(type) */
LLVMValueRef zero;
+
+ /** Same as lp_build_one(type) */
LLVMValueRef one;
};
#include "lp_bld.h"
#include "lp_bld_type.h"
+#include "lp_bld_const.h"
#include "lp_bld_arit.h"
/**
- * We may the same bld several times, so we keep them here to avoid
- * recomputing them. Also reusing the bld allows us to do simplifications
+ * 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_context
--- /dev/null
+/**************************************************************************
+ *
+ * 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
+ * Helper functions for constant building.
+ *
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ */
+
+
+#include "util/u_debug.h"
+
+#include "lp_bld_type.h"
+#include "lp_bld_const.h"
+
+
+LLVMValueRef
+lp_build_undef(union lp_type type)
+{
+ LLVMTypeRef vec_type = lp_build_vec_type(type);
+ return LLVMGetUndef(vec_type);
+}
+
+
+LLVMValueRef
+lp_build_zero(union lp_type type)
+{
+ LLVMTypeRef vec_type = lp_build_vec_type(type);
+ return LLVMConstNull(vec_type);
+}
+
+
+LLVMValueRef
+lp_build_one(union lp_type type)
+{
+ LLVMTypeRef elem_type;
+ LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
+ unsigned i;
+
+ assert(type.length <= LP_MAX_VECTOR_LENGTH);
+
+ elem_type = lp_build_elem_type(type);
+
+ if(type.floating)
+ elems[0] = LLVMConstReal(elem_type, 1.0);
+ else if(type.fixed)
+ elems[0] = LLVMConstInt(elem_type, 1LL << (type.width/2), 0);
+ else if(!type.norm)
+ elems[0] = LLVMConstInt(elem_type, 1, 0);
+ else {
+ /* special case' -- 1.0 for normalized types is more easily attained if
+ * we start with a vector consisting of all bits set */
+ LLVMTypeRef vec_type = LLVMVectorType(elem_type, type.length);
+ LLVMValueRef vec = LLVMConstAllOnes(vec_type);
+
+ if(type.sign)
+ vec = LLVMConstLShr(vec, LLVMConstInt(LLVMInt32Type(), 1, 0));
+
+ return vec;
+ }
+
+ for(i = 1; i < type.length; ++i)
+ elems[i] = elems[0];
+
+ return LLVMConstVector(elems, type.length);
+}
+
+
+LLVMValueRef
+lp_build_const_aos(union lp_type type,
+ double r, double g, double b, double a,
+ const unsigned char *swizzle)
+{
+ const unsigned char default_swizzle[4] = {0, 1, 2, 3};
+ LLVMTypeRef elem_type;
+ LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
+ unsigned i;
+
+ assert(type.length % 4 == 0);
+ assert(type.length <= LP_MAX_VECTOR_LENGTH);
+
+ elem_type = lp_build_elem_type(type);
+
+ if(swizzle == NULL)
+ swizzle = default_swizzle;
+
+ if(type.floating) {
+ elems[swizzle[0]] = LLVMConstReal(elem_type, r);
+ elems[swizzle[1]] = LLVMConstReal(elem_type, g);
+ elems[swizzle[2]] = LLVMConstReal(elem_type, b);
+ elems[swizzle[3]] = LLVMConstReal(elem_type, a);
+ }
+ else {
+ unsigned shift;
+ long long llscale;
+ double dscale;
+
+ if(type.fixed)
+ shift = type.width/2;
+ else if(type.norm)
+ shift = type.sign ? type.width - 1 : type.width;
+ else
+ shift = 0;
+
+ llscale = (long long)1 << shift;
+ dscale = (double)llscale;
+ assert((long long)dscale == llscale);
+
+ elems[swizzle[0]] = LLVMConstInt(elem_type, r*dscale + 0.5, 0);
+ elems[swizzle[1]] = LLVMConstInt(elem_type, g*dscale + 0.5, 0);
+ elems[swizzle[2]] = LLVMConstInt(elem_type, b*dscale + 0.5, 0);
+ elems[swizzle[3]] = LLVMConstInt(elem_type, a*dscale + 0.5, 0);
+ }
+
+ for(i = 4; i < type.length; ++i)
+ elems[i] = elems[i % 4];
+
+ return LLVMConstVector(elems, type.length);
+}
--- /dev/null
+/**************************************************************************
+ *
+ * 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
+ * Helper functions for constant building.
+ *
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ */
+
+
+#ifndef LP_BLD_CONST_H
+#define LP_BLD_CONST_H
+
+
+#include <llvm-c/Core.h>
+
+
+union lp_type type;
+
+
+LLVMValueRef
+lp_build_undef(union lp_type type);
+
+
+LLVMValueRef
+lp_build_zero(union lp_type type);
+
+
+LLVMValueRef
+lp_build_one(union lp_type type);
+
+
+LLVMValueRef
+lp_build_const_aos(union lp_type type,
+ double r, double g, double b, double a,
+ const unsigned char *swizzle);
+
+
+#endif /* !LP_BLD_CONST_H */
projects / mesa.git / commitdiff