/**************************************************************************
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*
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* Copyright 2010 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "util/u_debug.h"
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#include "util/u_memory.h"
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#include "lp_bld_assert.h"
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#include "lp_bld_init.h"
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#include "lp_bld_const.h"
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#include "lp_bld_printf.h"
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/**
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* A call to lp_build_assert() will build a function call to this function.
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*/
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static void
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lp_assert(int condition, const char *msg)
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{
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if (!condition) {
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debug_printf("LLVM assertion '%s' failed!\n", msg);
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assert(condition);
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}
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}
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/**
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* lp_build_assert.
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*
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* Build an assertion in LLVM IR by building a function call to the
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* lp_assert() function above.
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*
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* \param condition should be an 'i1' or 'i32' value
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* \param msg a string to print if the assertion fails.
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*/
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void
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lp_build_assert(struct gallivm_state *gallivm,
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LLVMValueRef condition,
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const char *msg)
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{
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LLVMBuilderRef builder = gallivm->builder;
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LLVMContextRef context = gallivm->context;
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LLVMTypeRef arg_types[2];
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LLVMTypeRef ret_type;
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LLVMValueRef function;
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LLVMValueRef args[2];
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LLVMValueRef msg_string;
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msg_string = lp_build_const_string(gallivm, msg);
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ret_type = LLVMVoidTypeInContext(context);
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arg_types[0] = LLVMInt32TypeInContext(context);
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arg_types[1] = LLVMPointerType(LLVMInt8TypeInContext(context), 0);
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function = lp_build_const_func_pointer(gallivm,
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func_to_pointer((func_pointer)lp_assert),
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ret_type, arg_types, ARRAY_SIZE(arg_types),
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"assert");
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/* build function call param list */
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args[0] = LLVMBuildZExt(builder, condition, arg_types[0], "");
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args[1] = msg_string;
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/* check arg types */
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assert(LLVMTypeOf(args[0]) == arg_types[0]);
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assert(LLVMTypeOf(args[1]) == arg_types[1]);
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LLVMBuildCall(builder, function, args, ARRAY_SIZE(args), "");
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}
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