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llvm-mirror/tools/llvm-c-test/main.c
Craig Disselkoen 1cbae6c6e8 C API: functions to get mask of a ShuffleVector
This commit fixes a regression (from LLVM 10 to LLVM 11 RC3) in the LLVM
C API.

Previously, commit 1ee6ec2bf removed the mask operand from the
ShuffleVector instruction, storing the mask data separately in the
instruction instead; this reduced the number of operands of
ShuffleVector from 3 to 2. AFAICT, this change unintentionally caused
a regression in the LLVM C API. Specifically, it is no longer possible
to get the mask of a ShuffleVector instruction through the C API. This
patch introduces new functions which together allow a C API user to get
the mask of a ShuffleVector instruction, restoring the functionality
which was previously available through LLVMGetOperand().

This patch also adds tests for this change to the llvm-c-test
executable, which involved adding support for InsertElement,
ExtractElement, and ShuffleVector itself (as well as constant vectors)
to echo.cpp. Previously, vector operations weren't tested at all in
echo.ll.

I also fixed some typos in comments and help-text nearby these changes,
which I happened to spot while developing this patch. Since the typo
fixes are technically unrelated other than being in the same files, I'm
happy to take them out if you'd rather they not be included in the patch.

Differential Revision: https://reviews.llvm.org/D88190
2020-09-25 16:01:05 -07:00

107 lines
5.0 KiB
C

/*===-- main.c - tool for testing libLLVM and llvm-c API ------------------===*\
|* *|
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
|* Exceptions. *|
|* See https://llvm.org/LICENSE.txt for license information. *|
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* Main file for llvm-c-tests. "Parses" arguments and dispatches. *|
|* *|
\*===----------------------------------------------------------------------===*/
#include "llvm-c-test.h"
#include <stdio.h>
#include <string.h>
static void print_usage(void) {
fprintf(stderr, "llvm-c-test command\n\n");
fprintf(stderr, " Commands:\n");
fprintf(stderr, " * --module-dump\n");
fprintf(stderr, " Read bitcode from stdin - print disassembly\n\n");
fprintf(stderr, " * --lazy-module-dump\n");
fprintf(stderr,
" Lazily read bitcode from stdin - print disassembly\n\n");
fprintf(stderr, " * --new-module-dump\n");
fprintf(stderr, " Read bitcode from stdin - print disassembly\n\n");
fprintf(stderr, " * --lazy-new-module-dump\n");
fprintf(stderr,
" Lazily read bitcode from stdin - print disassembly\n\n");
fprintf(stderr, " * --module-list-functions\n");
fprintf(stderr,
" Read bitcode from stdin - list summary of functions\n\n");
fprintf(stderr, " * --module-list-globals\n");
fprintf(stderr, " Read bitcode from stdin - list summary of globals\n\n");
fprintf(stderr, " * --targets-list\n");
fprintf(stderr, " List available targets\n\n");
fprintf(stderr, " * --object-list-sections\n");
fprintf(stderr, " Read object file from stdin - list sections\n\n");
fprintf(stderr, " * --object-list-symbols\n");
fprintf(stderr,
" Read object file from stdin - list symbols (like nm)\n\n");
fprintf(stderr, " * --disassemble\n");
fprintf(stderr, " Read lines of triple, hex ascii machine code from stdin "
"- print disassembly\n\n");
fprintf(stderr, " * --calc\n");
fprintf(
stderr,
" Read lines of name, rpn from stdin - print generated module\n\n");
fprintf(stderr, " * --echo\n");
fprintf(stderr, " Read bitcode file from stdin - print it back out\n\n");
fprintf(stderr, " * --test-diagnostic-handler\n");
fprintf(stderr,
" Read bitcode file from stdin with a diagnostic handler set\n\n");
fprintf(stderr, " * --test-dibuilder\n");
fprintf(stderr,
" Run tests for the DIBuilder C API - print generated module\n\n");
}
int main(int argc, char **argv) {
LLVMPassRegistryRef pr = LLVMGetGlobalPassRegistry();
LLVMInitializeCore(pr);
if (argc == 2 && !strcmp(argv[1], "--lazy-new-module-dump")) {
return llvm_module_dump(true, true);
} else if (argc == 2 && !strcmp(argv[1], "--new-module-dump")) {
return llvm_module_dump(false, true);
} else if (argc == 2 && !strcmp(argv[1], "--lazy-module-dump")) {
return llvm_module_dump(true, false);
} else if (argc == 2 && !strcmp(argv[1], "--module-dump")) {
return llvm_module_dump(false, false);
} else if (argc == 2 && !strcmp(argv[1], "--module-list-functions")) {
return llvm_module_list_functions();
} else if (argc == 2 && !strcmp(argv[1], "--module-list-globals")) {
return llvm_module_list_globals();
} else if (argc == 2 && !strcmp(argv[1], "--targets-list")) {
return llvm_targets_list();
} else if (argc == 2 && !strcmp(argv[1], "--object-list-sections")) {
return llvm_object_list_sections();
} else if (argc == 2 && !strcmp(argv[1], "--object-list-symbols")) {
return llvm_object_list_symbols();
} else if (argc == 2 && !strcmp(argv[1], "--disassemble")) {
return llvm_disassemble();
} else if (argc == 2 && !strcmp(argv[1], "--calc")) {
return llvm_calc();
} else if (argc == 2 && !strcmp(argv[1], "--add-named-metadata-operand")) {
return llvm_add_named_metadata_operand();
} else if (argc == 2 && !strcmp(argv[1], "--set-metadata")) {
return llvm_set_metadata();
} else if (argc == 2 && !strcmp(argv[1], "--test-function-attributes")) {
return llvm_test_function_attributes();
} else if (argc == 2 && !strcmp(argv[1], "--test-callsite-attributes")) {
return llvm_test_callsite_attributes();
} else if (argc == 2 && !strcmp(argv[1], "--echo")) {
return llvm_echo();
} else if (argc == 2 && !strcmp(argv[1], "--test-diagnostic-handler")) {
return llvm_test_diagnostic_handler();
} else if (argc == 2 && !strcmp(argv[1], "--test-dibuilder")) {
return llvm_test_dibuilder();
} else {
print_usage();
}
return 1;
}