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ispc/ispc_test.cpp
Matt Pharr cb7976bbf6 Added updated task launch implementation that now tracks task groups. 
Within each function that launches tasks, we now can easily track which
tasks that function launched, so that the sync at the end of the function
can just sync on the tasks launched by that function (not all tasks
launched by all functions.)

Implementing this led to a rework of the task system API that ispc generates
code to call; the example task systems in examples/tasksys.cpp have been
updated to conform to this API.  (The updated API is also documented in
the ispc user's guide.)

As part of this, "launch[n]" syntax was added to launch a number of tasks
in a single launch statement, rather than requiring a loop over 'n' to
launch n tasks.

This commit thus fixes issue #84 (enhancement to launch multiple tasks from
a single launch statement) as well as issue #105 (recursive task launches
were broken).
2011-09-30 11:20:53 -07:00

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/*
Copyright (c) 2010-2011, Intel Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define _CRT_SECURE_NO_WARNINGS
#if defined(_WIN32) || defined(_WIN64)
#define ISPC_IS_WINDOWS
#elif defined(__linux__)
#define ISPC_IS_LINUX
#elif defined(__APPLE__)
#define ISPC_IS_APPLE
#endif
#ifdef ISPC_IS_WINDOWS
#define NOMINMAX
#include <windows.h>
#endif
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <memory.h>
#ifdef ISPC_IS_LINUX
#include <malloc.h>
#endif
#ifdef ISPC_HAVE_SVML
#include <xmmintrin.h>
extern "C" {
extern __m128 __svml_sinf4(__m128);
extern __m128 __svml_cosf4(__m128);
extern __m128 __svml_sincosf4(__m128 *,__m128);
extern __m128 __svml_tanf4(__m128);
extern __m128 __svml_atanf4(__m128);
extern __m128 __svml_atan2f4(__m128, __m128);
extern __m128 __svml_expf4(__m128);
extern __m128 __svml_logf4(__m128);
extern __m128 __svml_powf4(__m128, __m128);
}
#endif
#include <llvm/LLVMContext.h>
#include <llvm/Module.h>
#include <llvm/Type.h>
#include <llvm/DerivedTypes.h>
#include <llvm/Instructions.h>
#include <llvm/ExecutionEngine/ExecutionEngine.h>
#if defined(LLVM_3_0) || defined(LLVM_3_0svn)
#include <llvm/Support/TargetRegistry.h>
#include <llvm/Support/TargetSelect.h>
#else
#include <llvm/Target/TargetRegistry.h>
#include <llvm/Target/TargetSelect.h>
#endif
#include <llvm/ExecutionEngine/JIT.h>
#include <llvm/Target/TargetOptions.h>
#include <llvm/Target/TargetData.h>
#include <llvm/Transforms/Scalar.h>
#include <llvm/Transforms/IPO.h>
#include <llvm/PassManager.h>
#include <llvm/Support/CFG.h>
#include <llvm/Analysis/Verifier.h>
#include <llvm/Assembly/PrintModulePass.h>
#include <llvm/Support/raw_ostream.h>
#include <llvm/Bitcode/ReaderWriter.h>
#include <llvm/Support/MemoryBuffer.h>
#include <llvm/Support/system_error.h>
bool shouldFail = false;
extern "C" {
void ISPCLaunch(void **, void *, void *, int32_t);
void ISPCSync(void *);
void *ISPCAlloc(void **, int64_t size, int32_t alignment);
}
void ISPCLaunch(void **handle, void *func, void *data, int32_t count) {
*handle = (void *)0xdeadbeef;
typedef void (*TaskFuncType)(void *, int, int, int, int);
TaskFuncType tft = (TaskFuncType)(func);
for (int i = 0; i < count; ++i)
tft(data, 0, 1, i, count);
}
void ISPCSync(void *) {
}
void *ISPCAlloc(void **handle, int64_t size, int32_t alignment) {
*handle = (void *)0xdeadbeef;
// leak time!
#ifdef ISPC_IS_WINDOWS
return _aligned_malloc(size, alignment);
#endif
#ifdef ISPC_IS_LINUX
return memalign(alignment, size);
#endif
#ifdef ISPC_IS_APPLE
void *mem = malloc(size + (alignment-1) + sizeof(void*));
char *amem = ((char*)mem) + sizeof(void*);
amem = amem + uint32_t(alignment - (reinterpret_cast<uint64_t>(amem) &
(alignment - 1)));
((void**)amem)[-1] = mem;
return amem;
#endif
}
static void usage(int ret) {
fprintf(stderr, "usage: ispc_test\n");
fprintf(stderr, "\t[-h/--help]\tprint help\n");
fprintf(stderr, "\t[-f]\t\tindicates that test is expected to fail\n");
fprintf(stderr, "\t<files>\n");
exit(ret);
}
static void svml_missing() {
fprintf(stderr, "Program called unavailable SVML function!\n");
exit(1);
}
// On Windows, sin() is an overloaded function, so we need an unambiguous
// function we can take the address of when wiring up the external references
// below.
double Sin(double x) { return sin(x); }
double Cos(double x) { return cos(x); }
double Tan(double x) { return tan(x); }
double Atan(double x) { return atan(x); }
double Atan2(double y, double x) { return atan2(y, x); }
double Pow(double a, double b) { return pow(a, b); }
double Exp(double x) { return exp(x); }
double Log(double x) { return log(x); }
static bool lRunTest(const char *fn) {
llvm::LLVMContext *ctx = new llvm::LLVMContext;
llvm::OwningPtr<llvm::MemoryBuffer> buf;
llvm::error_code err = llvm::MemoryBuffer::getFileOrSTDIN(fn, buf);
if (err) {
fprintf(stderr, "Unable to open file \"%s\": %s\n", fn, err.message().c_str());
delete ctx;
return false;
}
std::string bcErr;
llvm::Module *module = llvm::ParseBitcodeFile(buf.get(), *ctx, &bcErr);
if (!module) {
fprintf(stderr, "Bitcode reader failed for \"%s\": %s\n", fn, bcErr.c_str());
delete ctx;
return false;
}
std::string eeError;
#if defined(LLVM_3_0) || defined(LLVM_3_0svn)
llvm::EngineBuilder engineBuilder(module);
engineBuilder.setErrorStr(&eeError);
engineBuilder.setEngineKind(llvm::EngineKind::JIT);
#if 0
std::vector<std::string> attributes;
if (target != NULL && !strcmp(target, "avx"))
attributes.push_back("+avx");
engineBuilder.setMAttrs(attributes);
engineBuilder.setUseMCJIT(true);
#endif
llvm::ExecutionEngine *ee = engineBuilder.create();
#else
llvm::ExecutionEngine *ee = llvm::ExecutionEngine::createJIT(module, &eeError);
#endif
if (!ee) {
fprintf(stderr, "Unable to create ExecutionEngine: %s\n", eeError.c_str());
return false;
}
llvm::Function *func;
#define DO_FUNC(FUNC ,FUNCNAME) \
if ((func = module->getFunction(FUNCNAME)) != NULL) \
ee->addGlobalMapping(func, (void *)FUNC)
DO_FUNC(ISPCLaunch, "ISPCLaunch");
DO_FUNC(ISPCSync, "ISPCSync");
DO_FUNC(ISPCAlloc, "ISPCAlloc");
DO_FUNC(putchar, "putchar");
DO_FUNC(printf, "printf");
DO_FUNC(fflush, "fflush");
DO_FUNC(sinf, "sinf");
DO_FUNC(cosf, "cosf");
DO_FUNC(tanf, "tanf");
DO_FUNC(atanf, "atanf");
DO_FUNC(atan2f, "atan2f");
DO_FUNC(powf, "powf");
DO_FUNC(expf, "expf");
DO_FUNC(logf, "logf");
DO_FUNC(Sin, "sin");
DO_FUNC(Cos, "cos");
DO_FUNC(Tan, "tan");
DO_FUNC(Atan, "atan");
DO_FUNC(Atan2, "atan2");
DO_FUNC(Pow, "pow");
DO_FUNC(Exp, "exp");
DO_FUNC(Log, "log");
DO_FUNC(memset, "memset");
#ifdef ISPC_IS_APPLE
DO_FUNC(memset_pattern4, "memset_pattern4");
DO_FUNC(memset_pattern8, "memset_pattern8");
DO_FUNC(memset_pattern16, "memset_pattern16");
#endif
#ifdef ISPC_HAVE_SVML
#define DO_SVML(FUNC ,FUNCNAME) \
if ((func = module->getFunction(FUNCNAME)) != NULL) \
ee->addGlobalMapping(func, (void *)FUNC)
#else
#define DO_SVML(FUNC, FUNCNAME) \
if ((func = module->getFunction(FUNCNAME)) != NULL) \
ee->addGlobalMapping(func, (void *)svml_missing)
#endif
DO_SVML(__svml_sinf4, "__svml_sinf4");
DO_SVML(__svml_cosf4, "__svml_cosf4");
DO_SVML(__svml_sincosf4, "__svml_sincosf4");
DO_SVML(__svml_tanf4, "__svml_tanf4");
DO_SVML(__svml_atanf4, "__svml_atanf4");
DO_SVML(__svml_atan2f4, "__svml_atan2f4");
DO_SVML(__svml_expf4, "__svml_expf4");
DO_SVML(__svml_logf4, "__svml_logf4");
DO_SVML(__svml_powf4, "__svml_powf4");
// figure out the vector width in the compiled code
func = module->getFunction("width");
if (!func) {
fprintf(stderr, "No width() function found!\n");
return false;
}
int width;
{
typedef int (*PFN)();
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
width = pfn();
assert(width == 4 || width == 8 || width == 12 || width == 16);
}
// find the value that returns the desired result
func = module->getFunction("result");
bool foundResult = (func != NULL);
float result[16];
for (int i = 0; i < 16; ++i)
result[i] = 0;
if (foundResult) {
typedef void (*PFN)(float *);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
pfn(result);
}
else
fprintf(stderr, "Warning: no result() function found.\n");
// try to find a function to run
float returned[16];
for (int i = 0; i < 16; ++i)
returned[i] = 0;
float vfloat[16] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
double vdouble[16] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
int vint[16] = { 2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32 };
int vint2[16] = { 5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
if ((func = module->getFunction("f_v")) != NULL) {
typedef void (*PFN)(float *);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
pfn(returned);
}
else if ((func = module->getFunction("f_f")) != NULL) {
typedef void (*PFN)(float *, float *);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
llvm::verifyFunction(*func);
pfn(returned, vfloat);
}
else if ((func = module->getFunction("f_fu")) != NULL) {
typedef void (*PFN)(float *, float *, float fu);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
llvm::verifyFunction(*func);
pfn(returned, vfloat, 5.);
}
else if ((func = module->getFunction("f_fi")) != NULL) {
typedef void (*PFN)(float *, float *, int *);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
pfn(returned, vfloat, vint);
}
else if ((func = module->getFunction("f_du")) != NULL) {
typedef void (*PFN)(float *, double *, double);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
pfn(returned, vdouble, 5.);
}
else if ((func = module->getFunction("f_duf")) != NULL) {
typedef void (*PFN)(float *, double *, float);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
pfn(returned, vdouble, 5.f);
}
else if ((func = module->getFunction("f_di")) != NULL) {
typedef void (*PFN)(float *, double *, int *);
PFN pfn = reinterpret_cast<PFN>(ee->getPointerToFunction(func));
pfn(returned, vdouble, vint2);
}
else {
fprintf(stderr, "Unable to find runnable function in file \"%s\"\n", fn);
return false;
}
// see if we got the right result
bool resultsMatch = true;
if (foundResult) {
for (int i = 0; i < width; ++i)
if (returned[i] != result[i]) {
resultsMatch = false;
fprintf(stderr, "Test \"%s\" RETURNED %d: %g / %a EXPECTED %g / %a\n",
fn, i, returned[i], returned[i], result[i], result[i]);
}
}
else {
for (int i = 0; i < width; ++i)
fprintf(stderr, "Test \"%s\" returned %d: %g / %a\n",
fn, i, returned[i], returned[i]);
}
if (foundResult && shouldFail && resultsMatch)
fprintf(stderr, "Test %s unexpectedly passed\n", fn);
delete ee;
delete ctx;
return foundResult && resultsMatch;
}
int main(int argc, char *argv[]) {
llvm::InitializeNativeTarget();
#if defined(LLVM_3_0) || defined(LLVM_3_0svn)
LLVMLinkInJIT();
#endif
const char *filename = NULL;
for (int i = 1; i < argc; ++i) {
if (!strcmp(argv[i], "--help") || !strcmp(argv[i], "-h"))
usage(0);
if (!strcmp(argv[i], "-f"))
shouldFail = true;
else
filename = argv[i];
}
return (lRunTest(filename) == true) ? 0 : 1;
}
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