From c5531f575b85e39a63578cd48f70193a4888cfb5 Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Fri, 21 Aug 2009 10:57:48 +0100 Subject: llvmpipe: Split control flow function declarations and notes. --- src/gallium/drivers/llvmpipe/lp_bld_flow.h | 69 ++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 src/gallium/drivers/llvmpipe/lp_bld_flow.h (limited to 'src/gallium/drivers/llvmpipe/lp_bld_flow.h') diff --git a/src/gallium/drivers/llvmpipe/lp_bld_flow.h b/src/gallium/drivers/llvmpipe/lp_bld_flow.h new file mode 100644 index 0000000000..7281b278a0 --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_bld_flow.h @@ -0,0 +1,69 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +/** + * LLVM control flow build helpers. + * + * @author Jose Fonseca + */ + +#ifndef LP_BLD_FLOW_H +#define LP_BLD_FLOW_H + + +#include + + +/** + * LLVM's IR doesn't represent for-loops directly. Furthermore it + * it requires creating code blocks, branches, phi variables, so it + * requires a fair amount of code. + * + * @sa http://www.llvm.org/docs/tutorial/LangImpl5.html#for + */ +struct lp_build_loop_state +{ + LLVMBasicBlockRef block; + LLVMValueRef counter; +}; + + +void +lp_build_loop_begin(LLVMBuilderRef builder, + LLVMValueRef start, + struct lp_build_loop_state *state); + + +void +lp_build_loop_end(LLVMBuilderRef builder, + LLVMValueRef end, + LLVMValueRef step, + struct lp_build_loop_state *state); + + + +#endif /* !LP_BLD_FLOW_H */ -- cgit v1.2.3