Make this example pass use some things from lib/Support (EscapeString,

SlowOperatingInfo, Statistics). Besides providing an example of how to
use these facilities, it also serves to debug problems with runtime linking
when dlopening a loadable module. These three support facilities exercise
different combinations of Text/Weak Weak/Text and Text/Text linking
between the executable and the module.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29552 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2006-08-07 23:17:24 +00:00
parent 42fe455d37
commit 05445e30aa

View File

@ -14,14 +14,23 @@
#include "llvm/Pass.h"
#include "llvm/Function.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/SlowOperationInformer.h"
#include "llvm/ADT/Statistic.h"
#include <iostream>
using namespace llvm;
namespace {
Statistic<int> HelloCounter("hellocount",
"Counts number of functions greeted");
// Hello - The first implementation, without getAnalysisUsage.
struct Hello : public FunctionPass {
virtual bool runOnFunction(Function &F) {
std::cerr << "Hello: " << F.getName() << "\n";
SlowOperationInformer soi("EscapeString");
HelloCounter++;
std::string fname = F.getName();
EscapeString(fname);
std::cerr << "Hello: " << fname << "\n";
return false;
}
};
@ -30,7 +39,11 @@ namespace {
// Hello2 - The second implementation with getAnalysisUsage implemented.
struct Hello2 : public FunctionPass {
virtual bool runOnFunction(Function &F) {
std::cerr << "Hello: " << F.getName() << "\n";
SlowOperationInformer soi("EscapeString");
HelloCounter++;
std::string fname = F.getName();
EscapeString(fname);
std::cerr << "Hello: " << fname << "\n";
return false;
}