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llvm-mirror/tools/llvm-c-test/module.c
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

139 lines
3.9 KiB
C

/*===-- module.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 *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This file implements the --module-dump, --module-list-functions and *|
|* --module-list-globals commands in llvm-c-test. *|
|* *|
\*===----------------------------------------------------------------------===*/
#include "llvm-c-test.h"
#include "llvm-c/BitReader.h"
#include <stdio.h>
#include <stdlib.h>
static void diagnosticHandler(LLVMDiagnosticInfoRef DI, void *C) {
char *CErr = LLVMGetDiagInfoDescription(DI);
fprintf(stderr, "Error with new bitcode parser: %s\n", CErr);
LLVMDisposeMessage(CErr);
exit(1);
}
LLVMModuleRef llvm_load_module(bool Lazy, bool New) {
LLVMMemoryBufferRef MB;
LLVMModuleRef M;
char *msg = NULL;
if (LLVMCreateMemoryBufferWithSTDIN(&MB, &msg)) {
fprintf(stderr, "Error reading file: %s\n", msg);
exit(1);
}
LLVMBool Ret;
if (New) {
LLVMContextRef C = LLVMGetGlobalContext();
LLVMContextSetDiagnosticHandler(C, diagnosticHandler, NULL);
if (Lazy)
Ret = LLVMGetBitcodeModule2(MB, &M);
else
Ret = LLVMParseBitcode2(MB, &M);
} else {
if (Lazy)
Ret = LLVMGetBitcodeModule(MB, &M, &msg);
else
Ret = LLVMParseBitcode(MB, &M, &msg);
}
if (Ret) {
fprintf(stderr, "Error parsing bitcode: %s\n", msg);
LLVMDisposeMemoryBuffer(MB);
exit(1);
}
if (!Lazy)
LLVMDisposeMemoryBuffer(MB);
return M;
}
int llvm_module_dump(bool Lazy, bool New) {
LLVMModuleRef M = llvm_load_module(Lazy, New);
char *irstr = LLVMPrintModuleToString(M);
puts(irstr);
LLVMDisposeMessage(irstr);
LLVMDisposeModule(M);
return 0;
}
int llvm_module_list_functions(void) {
LLVMModuleRef M = llvm_load_module(false, false);
LLVMValueRef f;
f = LLVMGetFirstFunction(M);
while (f) {
if (LLVMIsDeclaration(f)) {
printf("FunctionDeclaration: %s\n", LLVMGetValueName(f));
} else {
LLVMBasicBlockRef bb;
LLVMValueRef isn;
unsigned nisn = 0;
unsigned nbb = 0;
printf("FunctionDefinition: %s [#bb=%u]\n", LLVMGetValueName(f),
LLVMCountBasicBlocks(f));
for (bb = LLVMGetFirstBasicBlock(f); bb;
bb = LLVMGetNextBasicBlock(bb)) {
nbb++;
for (isn = LLVMGetFirstInstruction(bb); isn;
isn = LLVMGetNextInstruction(isn)) {
nisn++;
if (LLVMIsACallInst(isn)) {
LLVMValueRef callee =
LLVMGetOperand(isn, LLVMGetNumOperands(isn) - 1);
printf(" calls: %s\n", LLVMGetValueName(callee));
}
}
}
printf(" #isn: %u\n", nisn);
printf(" #bb: %u\n\n", nbb);
}
f = LLVMGetNextFunction(f);
}
LLVMDisposeModule(M);
return 0;
}
int llvm_module_list_globals(void) {
LLVMModuleRef M = llvm_load_module(false, false);
LLVMValueRef g;
g = LLVMGetFirstGlobal(M);
while (g) {
LLVMTypeRef T = LLVMTypeOf(g);
char *s = LLVMPrintTypeToString(T);
printf("Global%s: %s %s\n",
LLVMIsDeclaration(g) ? "Declaration" : "Definition",
LLVMGetValueName(g), s);
LLVMDisposeMessage(s);
g = LLVMGetNextGlobal(g);
}
LLVMDisposeModule(M);
return 0;
}