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[Comgr] Add LIT testing capabilites to Comgr
To robustly test Comgr, we can leverage LLVM tools like llvm-dis, llvm-link, lld, etc. To facilitate this, in this patch we set up the infrastructure for Comgr llvm-lit tests. These tests can be added in the comgr/test-lit directory, and can be run via: make test-lit They are also added to the check-comgr target, so they can be run along with the traditional tests with make check-comgr Change-Id: I18fafd09c1ea280d78d32071e6877868cfaa66e5
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‎amd/comgr/CMakeLists.txt

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@@ -448,6 +448,7 @@ if(BUILD_TESTING)
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set_property(GLOBAL APPEND PROPERTY LLVM_ADDITIONAL_TEST_TARGETS check-comgr)
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endif()
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add_subdirectory(test)
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add_subdirectory(test-lit)
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endif()
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if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)

‎amd/comgr/test-lit/CMakeLists.txt

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configure_file(lit.site.cfg.py.in lit.site.cfg.py @ONLY)
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# Comgr source build
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if (EXISTS "${LLVM_TOOLS_BINARY_DIR}/../../bin/llvm-lit")
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set(LLVM_LIT_PATH "${LLVM_TOOLS_BINARY_DIR}/../../bin/llvm-lit")
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# LLVM external projects build
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else()
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set(LLVM_LIT_PATH "${LLVM_TOOLS_BINARY_DIR}/llvm-lit")
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endif()
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add_custom_target(test-lit COMMAND "${LLVM_LIT_PATH}"
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"${CMAKE_CURRENT_BINARY_DIR}" -v)
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macro(add_comgr_lit_binary name)
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add_executable("${name}" "comgr-sources/${name}.c")
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set_target_properties("${name}" PROPERTIES
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C_STANDARD 99
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C_STANDARD_REQUIRED Yes
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C_EXTENSIONS No)
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target_link_libraries("${name}" amd_comgr)
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add_dependencies(check-comgr "${name}")
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endmacro()
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
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add_comgr_lit_binary(source-to-bc-with-dev-libs)
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add_dependencies(check-comgr test-lit)

‎amd/comgr/test-lit/comgr-sources/common.h

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#ifndef COMGR_TEST_COMMON_H
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#define COMGR_TEST_COMMON_H
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#include "amd_comgr.h"
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#include <inttypes.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if !defined(_WIN32) && !defined(_WIN64)
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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#else // Windows
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#include <io.h>
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#endif
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#include <errno.h>
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#include <fcntl.h>
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#define amd_comgr_(call) \
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do { \
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amd_comgr_status_t status = amd_comgr_ ## call; \
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if (status != AMD_COMGR_STATUS_SUCCESS) { \
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const char* reason = ""; \
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amd_comgr_status_string(status, &reason); \
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fail(#call " failed: %s\n file, line: %s, %d\n", \
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reason, __FILE__, __LINE__); \
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} \
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} while (false)
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static void fail(const char *format, ...) {
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va_list ap;
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va_start(ap, format);
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printf("FAILED: ");
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vprintf(format, ap);
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printf("\n");
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va_end(ap);
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exit(1);
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}
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static int setBuf(const char *infile, char **buf) {
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FILE *fp;
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long size;
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fp = fopen(infile, "rb");
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if (!fp)
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fail("fopen : %s", infile);
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if (fseek(fp, 0L, SEEK_END) != 0)
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fail("fopen");
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size = ftell(fp);
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if (size == -1)
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fail("ftell");
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if (fseek(fp, 0, SEEK_SET) != 0)
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fail("fseek");
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*buf = (char *) malloc(size + 1);
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if (!*buf)
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fail("malloc");
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if (fread(*buf, size, 1, fp) != 1)
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fail("fread");
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if (fclose(fp) != 0)
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fail("fclose");
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(*buf)[size] = 0; // terminating zero
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return size;
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}
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static void dumpData(amd_comgr_data_t Data, const char *OutFile) {
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size_t size;
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char *bytes = NULL;
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amd_comgr_status_t status;
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amd_comgr_(get_data(Data, &size, NULL));
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bytes = (char *)malloc(size);
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if (!bytes)
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fail("malloc");
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amd_comgr_(get_data(Data, &size, bytes));
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FILE *fp = fopen(OutFile, "wb");
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if (!fp)
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fail("fopen : %s", OutFile);
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size_t ret = fwrite(bytes, sizeof(char), size, fp);
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if (ret != size)
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fail("fwrite");
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free(bytes);
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fclose(fp);
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}
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#endif // COMGR_TEST_COMMON_H

‎amd/comgr/test-lit/comgr-sources/source-to-bc-with-dev-libs.c

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#include "amd_comgr.h"
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#include "common.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int main(int argc, char *argv[]) {
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char *BufSource;
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size_t SizeSource;
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amd_comgr_data_t DataSource;
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amd_comgr_data_set_t DataSetIn, DataSetPch, DataSetBc, DataSetLinked,
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DataSetReloc, DataSetExec;
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amd_comgr_action_info_t DataAction;
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const char *CodeGenOptions[] = {
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"-mcode-object-version=5", "-mllvm", "-amdgpu-prelink"};
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size_t CodeGenOptionsCount =
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sizeof(CodeGenOptions) / sizeof(CodeGenOptions[0]);
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if (argc != 4) {
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fprintf(stderr, "Usage: source-to-bc-with-device-libs file.cl -o file.bc\n");
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exit(1);
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}
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SizeSource = setBuf(argv[1], &BufSource);
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amd_comgr_(create_data_set(&DataSetIn));
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amd_comgr_(create_data(AMD_COMGR_DATA_KIND_SOURCE, &DataSource));
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amd_comgr_(set_data(DataSource, SizeSource, BufSource));
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amd_comgr_(set_data_name(DataSource, "device-lib-linking.cl"));
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amd_comgr_(data_set_add(DataSetIn, DataSource));
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amd_comgr_(create_action_info(&DataAction));
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amd_comgr_(action_info_set_language(DataAction,
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AMD_COMGR_LANGUAGE_OPENCL_1_2));
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amd_comgr_(action_info_set_isa_name(DataAction, "amdgcn-amd-amdhsa--gfx900"));
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amd_comgr_(create_data_set(&DataSetPch));
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amd_comgr_(do_action(AMD_COMGR_ACTION_ADD_PRECOMPILED_HEADERS, DataAction,
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DataSetIn, DataSetPch));
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size_t Count;
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amd_comgr_(action_data_count(DataSetPch,
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AMD_COMGR_DATA_KIND_PRECOMPILED_HEADER, &Count));
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if (Count != 1) {
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printf("AMD_COMGR_ACTION_ADD_PRECOMPILED_HEADERS Failed: "
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"produced %zu precompiled header objects (expected 1)\n",
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Count);
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exit(1);
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}
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amd_comgr_(create_data_set(&DataSetBc));
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amd_comgr_(action_info_set_option_list(DataAction, CodeGenOptions,
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CodeGenOptionsCount));
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amd_comgr_(do_action(AMD_COMGR_ACTION_COMPILE_SOURCE_WITH_DEVICE_LIBS_TO_BC,
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DataAction, DataSetPch, DataSetBc));
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amd_comgr_(action_data_count(DataSetBc, AMD_COMGR_DATA_KIND_BC, &Count));
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if (Count != 1) {
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printf("AMD_COMGR_ACTION_COMPILE_SOURCE_TO_BC Failed: "
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"produced %zu BC objects (expected 1)\n",
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Count);
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exit(1);
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}
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amd_comgr_data_t DataBc;
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amd_comgr_(action_data_get_data(DataSetBc, AMD_COMGR_DATA_KIND_BC, 0,
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&DataBc));
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dumpData(DataBc, argv[3]);
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amd_comgr_(release_data(DataSource));
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amd_comgr_(release_data(DataBc));
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amd_comgr_(destroy_data_set(DataSetIn));
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amd_comgr_(destroy_data_set(DataSetPch));
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amd_comgr_(destroy_data_set(DataSetBc));
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amd_comgr_(destroy_action_info(DataAction));
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free(BufSource);
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}

‎amd/comgr/test-lit/device-lib-linking.cl

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// COM: Run Comgr binary to compile OpenCL source into LLVM IR Bitcode, linking
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// COM: against the AMD Device Libraries
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// RUN: source-to-bc-with-dev-libs %s -o %t-with-dev-libs.bc
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// COM: Dissasemble LLVM IR bitcode to LLVM IR text
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// RUN: llvm-dis %t-with-dev-libs.bc -o - | FileCheck %s
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// COM: Verify LLVM IR text file
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// CHECK: target triple = "amdgcn-amd-amdhsa"
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// CHECK: define internal float @_Z4powrff
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// CHECK: define internal float @_Z6sincosfPU3AS5f
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// CHECK: define internal float @_Z4cbrtf
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// CHECK: define internal float @__ocml_sincos_f32
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// CHECK: define internal float @__ocml_powr_f32
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// CHECK: define internal noundef float @__ocml_exp_f32
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// CHECK: define internal ptr addrspace(1) @__printf_alloc
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extern const __constant bool __oclc_finite_only_opt;
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extern const __constant bool __oclc_unsafe_math_opt;
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extern const __constant bool __oclc_correctly_rounded_sqrt32;
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extern const __constant bool __oclc_wavefrontsize64;
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extern const __constant int __oclc_ISA_version;
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extern const __constant int __oclc_ABI_version;
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void kernel device_libs(__global float *status) {
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if (__oclc_finite_only_opt) status[0] = 1.0;
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if (__oclc_unsafe_math_opt) status[1] = 1.0;
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if (__oclc_correctly_rounded_sqrt32) status[3] = 1.0;
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if (__oclc_wavefrontsize64) status[4] = 1.0;
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if (__oclc_ISA_version) status[5] = 1.0;
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if (__oclc_ABI_version) status[6] = 1.0;
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// Math functions to test AMDGPULibCalls Folding optimizations
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// fold_sincos()
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float x = 0.25;
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status[7] = sin(x) + cos(x);
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status[8] = cos(x) + sin(x);
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// fold_rootn()
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float y = 725.0;
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status[9] = rootn(y, 3);
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status[10] = rootn(y, -1);
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status[11] = rootn(y, -2);
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// fold_pow()
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float z = 12.16;
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status[12] = pow(z, (float) 0.5);
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status[13] = powr(y, (float) 7.23);
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// printf()
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printf("testy\n");
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}

‎amd/comgr/test-lit/hello-world.c

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// RUN: clang %s -o %t
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// RUN: %t | grep -e "hello world"
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#include <stdio.h>
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int main() {
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puts("hello world");
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return 0;
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}

‎amd/comgr/test-lit/lit.cfg.py

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import os
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import lit.formats
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import lit.util
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config.name = "Comgr"
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config.suffixes = {".hip", ".cl", ".c", ".cpp"}
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config.test_format = lit.formats.ShTest(True)
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config.excludes = ["comgr-sources"]
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config.test_source_root = os.path.dirname(__file__)
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config.test_exec_root = config.my_obj_root

‎amd/comgr/test-lit/lit.site.cfg.py.in

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import os
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config.my_src_root = r'@CMAKE_CURRENT_SOURCE_DIR@'
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config.my_obj_root = r'@CMAKE_CURRENT_BINARY_DIR@'
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# Needed for clang, llvm-dis, etc.
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config.environment['PATH'] = os.pathsep.join(["@LLVM_TOOLS_BINARY_DIR@",
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config.environment['PATH']])
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# Needed for Comgr binaries
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config.environment['PATH'] = os.pathsep.join(["@CMAKE_CURRENT_BINARY_DIR@",
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config.environment['PATH']])
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lit_config.load_config(
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config, os.path.join(config.my_src_root, "lit.cfg.py"))

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