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Printf fixes for reference results #673 #675 (#680)

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* Moved float tests that expect limits into their own sub-test.

These are harder to test generically on the CPU so have them be their own test which will retain hard-coded reference results.

* Remove unused variable.

* Switched reference result type from (char**) to (vector::const char*)

* printf: generate reference results where possible #673 #675

The reference results had two issues:
- They did not take into account the rounding mode of the device.
- Scientific notation results did not have trailing zero's, meaning that the exponent could be a single digit, despite the requirement being at least two digits.

This change introduces runtime generated reference results for types with numerical representations (float, int, hex, etc) where a direct mapping to standard C99 (sn)printf is possible to execute on the CPU.

* Trim leading zeroes from the exponent when verifying result #675.

There is no limit on how many leading zeros may be in the exponent, so strip them all.

* Switched to using get_default_rounding_mode.
This commit is contained in:
Jeremy Kemp
2020-04-15 14:30:29 +01:00
committed by GitHub
parent 349da6e6fb
commit ce39ffdda7
3 changed files with 247 additions and 200 deletions
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24
test_conformance/printf/test_printf.cpp
View File

@@ -677,17 +677,19 @@ int test_float_17(cl_device_id deviceID, cl_context context, cl_command_queue qu
{
return doTest(gQueue, gContext, TYPE_FLOAT, 17, deviceID);
}
int test_float_18(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
int test_float_limits_0(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
{
return doTest(gQueue, gContext, TYPE_FLOAT, 18, deviceID);
return doTest(gQueue, gContext, TYPE_FLOAT_LIMITS, 0, deviceID);
}
int test_float_19(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
int test_float_limits_1(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
{
return doTest(gQueue, gContext, TYPE_FLOAT, 19, deviceID);
return doTest(gQueue, gContext, TYPE_FLOAT_LIMITS, 1, deviceID);
}
int test_float_20(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
int test_float_limits_2(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
{
return doTest(gQueue, gContext, TYPE_FLOAT, 20, deviceID);
return doTest(gQueue, gContext, TYPE_FLOAT_LIMITS, 2, deviceID);
}
@@ -841,9 +843,10 @@ test_definition test_list[] = {
ADD_TEST( float_15 ),
ADD_TEST( float_16 ),
ADD_TEST( float_17 ),
ADD_TEST( float_18 ),
ADD_TEST( float_19 ),
ADD_TEST( float_20 ),
ADD_TEST( float_limits_0 ),
ADD_TEST( float_limits_1 ),
ADD_TEST( float_limits_2 ),
ADD_TEST( octal_0 ),
ADD_TEST( octal_1 ),
@@ -1035,5 +1038,8 @@ test_status InitCL( cl_device_id device )
releaseOutputStream(gFd);
// Generate reference results
generateRef(device);
return TEST_PASS;
}

37
test_conformance/printf/test_printf.h
View File

@@ -17,9 +17,12 @@
#define TESTPRINTF_INCLUDED_H
#include "harness/compat.h"
#include "harness/testHarness.h"
#include "harness/rounding_mode.h"
#include <stdio.h>
#include <string.h>
#include <vector>
#ifdef __APPLE__
#include <OpenCL/opencl.h>
@@ -38,10 +41,11 @@
//-----------------------------------------
// Types
//-----------------------------------------
enum Type
enum PrintfTestType
{
TYPE_INT,
TYPE_FLOAT,
TYPE_FLOAT_LIMITS,
TYPE_OCTAL,
TYPE_UNSIGNED,
TYPE_HEXADEC,
@@ -66,22 +70,39 @@ struct printDataGenParameters
const char* addrSpacePAdd;
};
// Reference results - filled out at run-time
static std::vector<std::string> correctBufferInt;
static std::vector<std::string> correctBufferFloat;
static std::vector<std::string> correctBufferOctal;
static std::vector<std::string> correctBufferUnsigned;
static std::vector<std::string> correctBufferHexadecimal;
// Reference results - Compile-time known
extern std::vector<std::string> correctBufferChar;
extern std::vector<std::string> correctBufferString;
extern std::vector<std::string> correctBufferFloatLimits;
extern std::vector<std::string> correctBufferVector;
extern std::vector<std::string> correctAddrSpace;
// Helper for generating reference results
void generateRef(const cl_device_id device);
//-----------------------------------------
//Test Case
//-----------------------------------------
struct testCase
{
unsigned int _testNum; //test number
enum Type _type; //(data)type for test
//const char** _strPrint; //auxiliary data to build the code for kernel source
const char** _correctBuffer; //look-up table for correct results for printf
struct printDataGenParameters* _genParameters; //auxiliary data to build the code for kernel source
enum PrintfTestType _type; //(data)type for test
std::vector<std::string>& _correctBuffer; //look-up table for correct results for printf
std::vector<printDataGenParameters>& _genParameters; //auxiliary data to build the code for kernel source
void (*printFN)(printDataGenParameters&,
char*,
const size_t); //function pointer for generating reference results
Type dataType; //the data type that will be printed during reference result generation (used for setting rounding mode)
};
extern const char* strType[];
extern testCase* allTestCase[];
extern std::vector<testCase*> allTestCase;
size_t verifyOutputBuffer(char *analysisBuffer,testCase* pTestCase,size_t testId,cl_ulong pAddr = 0);

384
test_conformance/printf/util_printf.cpp
View File

@@ -14,13 +14,18 @@
// limitations under the License.
//
#include "harness/compat.h"
#include "harness/rounding_mode.h"
#include "harness/kernelHelpers.h"
#include "test_printf.h"
#include <assert.h>
const char* strType[] = {"int","float","octal","unsigned","hexadecimal","char","string","vector","address space"};
// Helpers for generating runtime reference results
static void intRefBuilder(printDataGenParameters&, char*, const size_t);
static void floatRefBuilder(printDataGenParameters&, char* rResult, const size_t);
static void octalRefBuilder(printDataGenParameters&, char*, const size_t);
static void unsignedRefBuilder(printDataGenParameters&, char*, const size_t);
static void hexRefBuilder(printDataGenParameters&, char*, const size_t);
//==================================
@@ -34,7 +39,7 @@ const char* strType[] = {"int","float","octal","unsigned","hexadecimal","char","
//------------------------------------------------------
struct printDataGenParameters printIntGenParameters[] = {
std::vector<printDataGenParameters> printIntGenParameters = {
//(Minimum)Five-wide,default(right)-justified
@@ -74,38 +79,6 @@ struct printDataGenParameters printIntGenParameters[] = {
};
//------------------------------------------------
// Lookup table - [string]int-correct buffer |
//------------------------------------------------
const char *correctBufferInt[] = {
" 10",
"10 ",
"00010",
" +10",
"+10 ",
"00100",
" 00100",
"100 ",
" 00100"
};
//-----------------------------------------------
//test case for int |
@@ -114,13 +87,15 @@ const char *correctBufferInt[] = {
testCase testCaseInt = {
sizeof(correctBufferInt)/sizeof(char*),
TYPE_INT,
correctBufferInt,
printIntGenParameters
printIntGenParameters,
intRefBuilder,
kint
};
@@ -142,7 +117,7 @@ testCase testCaseInt = {
//--------------------------------------------------------
struct printDataGenParameters printFloatGenParameters[] = {
std::vector<printDataGenParameters> printFloatGenParameters = {
//Default(right)-justified
@@ -215,6 +190,44 @@ struct printDataGenParameters printFloatGenParameters[] = {
//(Minimum)Ten-wide,Double argument representing floating-point,in xh.hhhhpAd style,default(right)-justified
{"%10.2a","9990.235"},
};
//---------------------------------------------------------
//Test case for float |
//---------------------------------------------------------
testCase testCaseFloat = {
TYPE_FLOAT,
correctBufferFloat,
printFloatGenParameters,
floatRefBuilder,
kfloat
};
//==============================================
// float limits
//==============================================
//--------------------------------------------------------
// [string] format | [string] float-data representation |
//--------------------------------------------------------
std::vector<printDataGenParameters> printFloatLimitsGenParameters = {
//Infinity (1.0/0.0)
@@ -233,43 +246,7 @@ struct printDataGenParameters printFloatGenParameters[] = {
//--------------------------------------------------------
const char* correctBufferFloat[] = {
"10.345600",
"10.3",
"10.35",
" 10.346",
"00010.35",
"10.35 ",
" -10.35",
"0",
"1",
"0.600000",
"12345.7",
"1.2e+4",
"2.3E-6",
"0.023",
"7.894561230000000e+8",
"+7.894561230000000E+8",
"0x1.99999ap-4",
"0x1.38p+13",
std::vector<std::string> correctBufferFloatLimits = {
"inf",
@@ -284,20 +261,18 @@ const char* correctBufferFloat[] = {
//---------------------------------------------------------
testCase testCaseFloat = {
testCase testCaseFloatLimits = {
sizeof(correctBufferFloat)/sizeof(char*),
TYPE_FLOAT_LIMITS,
TYPE_FLOAT,
correctBufferFloatLimits,
correctBufferFloat,
printFloatLimitsGenParameters,
printFloatGenParameters
NULL
};
//=========================================================
// octal
@@ -312,7 +287,7 @@ testCase testCaseFloat = {
//---------------------------------------------------------
struct printDataGenParameters printOctalGenParameters[] = {
std::vector<printDataGenParameters> printOctalGenParameters = {
//Default(right)-justified
@@ -334,39 +309,21 @@ struct printDataGenParameters printOctalGenParameters[] = {
//-------------------------------------------------------
// Lookup table - [string] octal-correct buffer |
//-------------------------------------------------------
const char* correctBufferOctal[] = {
"12",
"00012",
"0575360400",
"00012"
};
//-------------------------------------------------------
//Test case for octal |
//-------------------------------------------------------
testCase testCaseOctal = {
sizeof(correctBufferOctal)/sizeof(char*),
TYPE_OCTAL,
correctBufferOctal,
printOctalGenParameters
printOctalGenParameters,
octalRefBuilder,
kulong
};
@@ -386,7 +343,7 @@ testCase testCaseOctal = {
//---------------------------------------------------------
struct printDataGenParameters printUnsignedGenParameters[] = {
std::vector<printDataGenParameters> printUnsignedGenParameters = {
//Default(right)-justified
@@ -400,35 +357,21 @@ struct printDataGenParameters printUnsignedGenParameters[] = {
//-------------------------------------------------------
// Lookup table - [string] octal-correct buffer |
//-------------------------------------------------------
const char* correctBufferUnsigned[] = {
"10",
""
};
//-------------------------------------------------------
//Test case for octal |
//-------------------------------------------------------
testCase testCaseUnsigned = {
sizeof(correctBufferUnsigned)/sizeof(char*),
TYPE_UNSIGNED,
correctBufferUnsigned,
printUnsignedGenParameters
printUnsignedGenParameters,
unsignedRefBuilder,
kulong
};
@@ -448,7 +391,7 @@ testCase testCaseUnsigned = {
//--------------------------------------------------------------
struct printDataGenParameters printHexadecimalGenParameters[] = {
std::vector<printDataGenParameters> printHexadecimalGenParameters = {
//Add 0x,low x,default(right)-justified
@@ -474,41 +417,21 @@ struct printDataGenParameters printHexadecimalGenParameters[] = {
//--------------------------------------------------------------
// Lookup table - [string]hexadecimal-correct buffer |
//--------------------------------------------------------------
const char* correctBufferHexadecimal[] = {
"0xabcdef",
"0XABCDEF",
"0",
" 18f",
"018f"
};
//--------------------------------------------------------------
//Test case for hexadecimal |
//--------------------------------------------------------------
testCase testCaseHexadecimal = {
sizeof(correctBufferHexadecimal)/sizeof(char*),
TYPE_HEXADEC,
correctBufferHexadecimal,
printHexadecimalGenParameters
printHexadecimalGenParameters,
hexRefBuilder,
kulong
};
@@ -528,7 +451,7 @@ testCase testCaseHexadecimal = {
//-----------------------------------------------------------
struct printDataGenParameters printCharGenParameters[] = {
std::vector<printDataGenParameters> printCharGenParameters = {
//Four-wide,zero-filled,default(right)-justified
@@ -550,7 +473,7 @@ struct printDataGenParameters printCharGenParameters[] = {
//---------------------------------------------------------
const char * correctBufferChar[] = {
std::vector<std::string> correctBufferChar = {
" 1",
@@ -562,6 +485,7 @@ const char * correctBufferChar[] = {
//----------------------------------------------------------
//Test case for char |
@@ -570,13 +494,15 @@ const char * correctBufferChar[] = {
testCase testCaseChar = {
sizeof(correctBufferChar)/sizeof(char*),
TYPE_CHAR,
correctBufferChar,
printCharGenParameters
printCharGenParameters,
NULL,
kchar
};
@@ -596,7 +522,7 @@ testCase testCaseChar = {
//--------------------------------------------------------
struct printDataGenParameters printStringGenParameters[] = {
std::vector<printDataGenParameters> printStringGenParameters = {
//(Minimum)Four-wide,zero-filled,default(right)-justified
@@ -617,7 +543,7 @@ struct printDataGenParameters printStringGenParameters[] = {
//---------------------------------------------------------
const char * correctBufferString[] = {
std::vector<std::string> correctBufferString = {
" foo",
@@ -626,6 +552,7 @@ const char * correctBufferString[] = {
"%%",
};
//---------------------------------------------------------
//Test case for string |
@@ -634,13 +561,15 @@ const char * correctBufferString[] = {
testCase testCaseString = {
sizeof(correctBufferString)/sizeof(char*),
TYPE_STRING,
correctBufferString,
printStringGenParameters
printStringGenParameters,
NULL,
kchar
};
@@ -660,7 +589,7 @@ testCase testCaseString = {
//-------------------------------------------------------------------------------------------------------------------
struct printDataGenParameters printVectorGenParameters[]={
std::vector<printDataGenParameters> printVectorGenParameters = {
//(Minimum)Two-wide,two positions after decimal
@@ -690,7 +619,7 @@ struct printDataGenParameters printVectorGenParameters[]={
//------------------------------------------------------------
const char * correctBufferVector[] = {
std::vector<std::string> correctBufferVector = {
"1.00,2.00,3.00,4.00",
@@ -712,13 +641,13 @@ const char * correctBufferVector[] = {
testCase testCaseVector = {
sizeof(correctBufferVector)/(sizeof(char *)),
TYPE_VECTOR,
correctBufferVector,
printVectorGenParameters
printVectorGenParameters,
NULL
};
@@ -740,7 +669,7 @@ testCase testCaseVector = {
struct printDataGenParameters printAddrSpaceGenParameters[]={
std::vector<printDataGenParameters> printAddrSpaceGenParameters = {
//Global memory region
@@ -770,7 +699,7 @@ struct printDataGenParameters printAddrSpaceGenParameters[]={
//-------------------------------------------------------------------------------
const char * correctAddrSpace[] = {
std::vector<std::string> correctAddrSpace = {
"2","2","+3","-1",""
@@ -784,13 +713,13 @@ const char * correctAddrSpace[] = {
testCase testCaseAddrSpace = {
sizeof(correctAddrSpace)/(sizeof(char *)),
TYPE_ADDRESS_SPACE,
correctAddrSpace,
printAddrSpaceGenParameters
printAddrSpaceGenParameters,
NULL
};
@@ -802,7 +731,7 @@ testCase testCaseAddrSpace = {
//-------------------------------------------------------------------------------
testCase* allTestCase[] = {&testCaseInt,&testCaseFloat,&testCaseOctal,&testCaseUnsigned,&testCaseHexadecimal,&testCaseChar,&testCaseString,&testCaseVector,&testCaseAddrSpace};
std::vector<testCase*> allTestCase = {&testCaseInt,&testCaseFloat,&testCaseFloatLimits,&testCaseOctal,&testCaseUnsigned,&testCaseHexadecimal,&testCaseChar,&testCaseString,&testCaseVector,&testCaseAddrSpace};
//-----------------------------------------
@@ -848,8 +777,7 @@ size_t verifyOutputBuffer(char *analysisBuffer,testCase* pTestCase,size_t testId
char correctExp[3]={0};
strncpy(correctExp,exp,2);
char* eCorrectBuffer = strstr((char*)pTestCase->_correctBuffer[testId],correctExp);
char* eCorrectBuffer = strstr((char*)pTestCase->_correctBuffer[testId].c_str(),correctExp);
if(eCorrectBuffer == NULL)
return 1;
@@ -859,16 +787,108 @@ size_t verifyOutputBuffer(char *analysisBuffer,testCase* pTestCase,size_t testId
//Exponent always contains at least two digits
if(strlen(exp) < 2)
return 1;
//Scip leading zeros in the exponent
//Skip leading zeros in the exponent
while(*exp == '0')
++exp;
while(*eCorrectBuffer == '0')
++eCorrectBuffer;
return strcmp(eCorrectBuffer,exp);
}
if(!strcmp(pTestCase->_correctBuffer[testId],"inf"))
if(!strcmp(pTestCase->_correctBuffer[testId].c_str(),"inf"))
return strcmp(analysisBuffer,"inf")&&strcmp(analysisBuffer,"infinity")&&strcmp(analysisBuffer,"1.#INF00")&&strcmp(analysisBuffer,"Inf");
if(!strcmp(pTestCase->_correctBuffer[testId],"nan") || !strcmp(pTestCase->_correctBuffer[testId],"-nan")) {
if(!strcmp(pTestCase->_correctBuffer[testId].c_str(),"nan") || !strcmp(pTestCase->_correctBuffer[testId].c_str(),"-nan")) {
return strcmp(analysisBuffer,"nan")&&strcmp(analysisBuffer,"-nan")&&strcmp(analysisBuffer,"1.#IND00")&&strcmp(analysisBuffer,"-1.#IND00")&&strcmp(analysisBuffer,"NaN")&&strcmp(analysisBuffer,"nan(ind)")&&strcmp(analysisBuffer,"nan(snan)")&&strcmp(analysisBuffer,"-nan(ind)");
}
return strcmp(analysisBuffer,pTestCase->_correctBuffer[testId]);
return strcmp(analysisBuffer,pTestCase->_correctBuffer[testId].c_str());
}
static void intRefBuilder(printDataGenParameters& params, char* refResult, const size_t refSize)
{
snprintf(refResult, refSize, params.genericFormat, atoi(params.dataRepresentation));
}
static void floatRefBuilder(printDataGenParameters& params, char* refResult, const size_t refSize)
{
snprintf(refResult, refSize, params.genericFormat, strtof(params.dataRepresentation, NULL));
}
static void octalRefBuilder(printDataGenParameters& params, char* refResult, const size_t refSize)
{
const unsigned long int data = strtoul(params.dataRepresentation, NULL, 10);
snprintf(refResult, refSize, params.genericFormat, data);
}
static void unsignedRefBuilder(printDataGenParameters& params, char* refResult, const size_t refSize)
{
const unsigned long int data = strtoul(params.dataRepresentation, NULL, 10);
snprintf(refResult, refSize, params.genericFormat, data);
}
static void hexRefBuilder(printDataGenParameters& params, char* refResult, const size_t refSize)
{
const unsigned long int data = strtoul(params.dataRepresentation, NULL, 0);
snprintf(refResult, refSize, params.genericFormat, data);
}
/*
Generate reference results.
Results are only generated for test cases
that can easily be generated by using CPU
printf.
If that is not the case, results are constants
that have been hard-coded.
*/
void generateRef(const cl_device_id device)
{
int fd = -1;
char _refBuffer[ANALYSIS_BUFFER_SIZE];
const cl_device_fp_config fpConfig = get_default_rounding_mode(device);
const RoundingMode hostRound = get_round();
RoundingMode deviceRound;
// Map device rounding to CTS rounding type
// get_default_rounding_mode supports RNE and RTZ
if (fpConfig == CL_FP_ROUND_TO_NEAREST)
{
deviceRound = kRoundToNearestEven;
}
else if (fpConfig == CL_FP_ROUND_TO_ZERO)
{
deviceRound = kRoundTowardZero;
}
else
{
assert(false && "Unreachable");
}
// Loop through all test cases
for (auto &caseToTest: allTestCase)
{
/*
Cases that have a NULL function pointer
already have their reference results
as they're constant and hard-coded
*/
if (caseToTest->printFN == NULL)
continue;
// Make sure the reference result is empty
assert(caseToTest->_correctBuffer.size() == 0);
// Loop through each input
for (auto &params: caseToTest->_genParameters)
{
char refResult[ANALYSIS_BUFFER_SIZE];
// Set CPU rounding mode to match that of the device
set_round(deviceRound, caseToTest->dataType);
// Generate the result
caseToTest->printFN(params, refResult, ARRAY_SIZE(refResult));
// Restore the original CPU rounding mode
set_round(hostRound, kfloat);
// Save the reference result
caseToTest->_correctBuffer.push_back(refResult);
}
}
}