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