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/**************************************************************************
*
* Copyright 2010 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.
*
**************************************************************************/
#include "util/u_debug.h"
#include "util/u_memory.h"
#include "lp_bld_assert.h"
#include "lp_bld_init.h"
#include "lp_bld_const.h"
#include "lp_bld_printf.h"
/**
* A call to lp_build_assert() will build a function call to this function.
*/
static void
lp_assert(int condition, const char *msg)
{
if (!condition) {
debug_printf("LLVM assertion '%s' failed!\n", msg);
assert(condition);
}
}
/**
* lp_build_assert.
*
* Build an assertion in LLVM IR by building a function call to the
* lp_assert() function above.
*
* \param condition should be an 'i1' or 'i32' value
* \param msg a string to print if the assertion fails.
*/
void
lp_build_assert(struct gallivm_state *gallivm,
LLVMValueRef condition,
const char *msg)
{
LLVMBuilderRef builder = gallivm->builder;
LLVMContextRef context = gallivm->context;
LLVMTypeRef arg_types[2];
LLVMTypeRef ret_type;
LLVMValueRef function;
LLVMValueRef args[2];
LLVMValueRef msg_string;
msg_string = lp_build_const_string(gallivm, msg);
ret_type = LLVMVoidTypeInContext(context);
arg_types[0] = LLVMInt32TypeInContext(context);
arg_types[1] = LLVMPointerType(LLVMInt8TypeInContext(context), 0);
function = lp_build_const_func_pointer(gallivm,
func_to_pointer((func_pointer)lp_assert),
ret_type, arg_types, Elements(arg_types),
"assert");
/* build function call param list */
args[0] = LLVMBuildZExt(builder, condition, arg_types[0], "");
args[1] = msg_string;
/* check arg types */
assert(LLVMTypeOf(args[0]) == arg_types[0]);
assert(LLVMTypeOf(args[1]) == arg_types[1]);
LLVMBuildCall(builder, function, args, Elements(args), "");
}
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