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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.
*
**************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <llvm-c/Core.h>
#include <llvm-c/Analysis.h>
#include <llvm-c/ExecutionEngine.h>
#include <llvm-c/Target.h>
#include <llvm-c/Transforms/Scalar.h>
#include "lp_bld.h"
static LLVMValueRef
add_unpack_rgba_test(LLVMModuleRef module,
enum pipe_format format)
{
LLVMTypeRef args[] = {
LLVMPointerType(LLVMInt8Type(), 0),
LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0)
};
LLVMValueRef func = LLVMAddFunction(module, "unpack", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
LLVMSetFunctionCallConv(func, LLVMCCallConv);
LLVMValueRef ptr = LLVMGetParam(func, 0);
LLVMValueRef rgba_ptr = LLVMGetParam(func, 1);
LLVMBasicBlockRef block = LLVMAppendBasicBlock(func, "entry");
LLVMBuilderRef builder = LLVMCreateBuilder();
LLVMPositionBuilderAtEnd(builder, block);
LLVMValueRef rgba;
struct lp_build_loop_state loop;
lp_build_loop_begin(builder, LLVMConstInt(LLVMInt32Type(), 1, 0), &loop);
rgba = lp_build_unpack_rgba(builder, format, ptr);
LLVMBuildStore(builder, rgba, rgba_ptr);
lp_build_loop_end(builder, LLVMConstInt(LLVMInt32Type(), 4, 0), NULL, &loop);
LLVMBuildRetVoid(builder);
LLVMDisposeBuilder(builder);
return func;
}
static LLVMValueRef
add_pack_rgba_test(LLVMModuleRef module,
enum pipe_format format)
{
LLVMTypeRef args[] = {
LLVMPointerType(LLVMInt8Type(), 0),
LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0)
};
LLVMValueRef func = LLVMAddFunction(module, "pack", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
LLVMSetFunctionCallConv(func, LLVMCCallConv);
LLVMValueRef ptr = LLVMGetParam(func, 0);
LLVMValueRef rgba_ptr = LLVMGetParam(func, 1);
LLVMBasicBlockRef block = LLVMAppendBasicBlock(func, "entry");
LLVMBuilderRef builder = LLVMCreateBuilder();
LLVMPositionBuilderAtEnd(builder, block);
LLVMValueRef rgba;
rgba = LLVMBuildLoad(builder, rgba_ptr, "");
lp_build_pack_rgba(builder, format, ptr, rgba);
LLVMBuildRetVoid(builder);
LLVMDisposeBuilder(builder);
return func;
}
int main(int argc, char **argv)
{
char *error = NULL;
int n;
if (argc > 1)
sscanf(argv[1], "%x", &n);
else
n = 0x0000f0f0;
LLVMModuleRef module = LLVMModuleCreateWithName("test");
enum pipe_format format;
format = PIPE_FORMAT_R5G6B5_UNORM;
LLVMValueRef unpack = add_unpack_rgba_test(module, format);
LLVMValueRef pack = add_pack_rgba_test(module, format);
LLVMVerifyModule(module, LLVMAbortProcessAction, &error);
LLVMDisposeMessage(error);
LLVMExecutionEngineRef engine;
LLVMModuleProviderRef provider = LLVMCreateModuleProviderForExistingModule(module);
error = NULL;
LLVMCreateJITCompiler(&engine, provider, 1, &error);
if (error) {
fprintf(stderr, "%s\n", error);
LLVMDisposeMessage(error);
abort();
}
LLVMPassManagerRef pass = LLVMCreatePassManager();
#if 0
LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
/* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
* but there are more on SVN. */
LLVMAddConstantPropagationPass(pass);
LLVMAddInstructionCombiningPass(pass);
LLVMAddPromoteMemoryToRegisterPass(pass);
LLVMAddDemoteMemoryToRegisterPass(pass);
LLVMAddGVNPass(pass);
LLVMAddCFGSimplificationPass(pass);
LLVMRunPassManager(pass, module);
#endif
LLVMDumpModule(module);
printf("Packed: %08x\n", n);
float rgba[4] = {0, 0, 0, 0};
{
#if 1
typedef void (*unpack_ptr_t)(void *, float *);
unpack_ptr_t unpack_ptr = (unpack_ptr_t)LLVMGetPointerToGlobal(engine, unpack);
unpack_ptr(&n, rgba);
#else
LLVMGenericValueRef exec_args[] = {
LLVMCreateGenericValueOfPointer(n),
LLVMCreateGenericValueOfPointer(rgba)
};
LLVMGenericValueRef exec_res = LLVMRunFunction(engine, unpack, 2, exec_args);
#endif
printf("Unpacked: %f %f %f %f\n",
rgba[0],
rgba[1],
rgba[2],
rgba[3]);
}
n = 0;
{
#if 1
typedef void (*pack_ptr_t)(void *, float *);
pack_ptr_t pack_ptr = (pack_ptr_t)LLVMGetPointerToGlobal(engine, pack);
pack_ptr(&n, rgba);
#else
LLVMGenericValueRef exec_args[] = {
LLVMCreateGenericValueOfPointer(n),
LLVMCreateGenericValueOfPointer(rgba)
};
LLVMGenericValueRef exec_res = LLVMRunFunction(engine, pack, 2, exec_args);
#endif
printf("Packed: %08x\n", n);
}
LLVMDisposePassManager(pass);
LLVMDisposeExecutionEngine(engine);
return 0;
}
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