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