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Fix PR1517:

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Use SmallPtrSet instead of std::vector to eliminate duplicate uses in a
function generated with -gen-function. This prevents the output from having
multiple duplicate declarations of constants and gvals.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37616 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2007-06-16 20:48:27 +00:00
parent ab24b4cf70
commit a4d71f09ff
1 changed files with 10 additions and 9 deletions
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19
tools/llvm2cpp/CppWriter.cpp
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@ -23,6 +23,7 @@
#include "llvm/TypeSymbolTable.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/ManagedStatic.h"
@ -1423,8 +1424,8 @@ void CppWriter::printFunctionUses(const Function* F) {
// Print type definitions for every type referenced by an instruction and
// make a note of any global values or constants that are referenced
std::vector<GlobalValue*> gvs;
std::vector<Constant*> consts;
SmallPtrSet<GlobalValue*,64> gvs;
SmallPtrSet<Constant*,64> consts;
for (Function::const_iterator BB = F->begin(), BE = F->end(); BB != BE; ++BB){
for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
I != E; ++I) {
@ -1438,19 +1439,19 @@ void CppWriter::printFunctionUses(const Function* F) {
// If the operand references a GVal or Constant, make a note of it
if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) {
gvs.push_back(GV);
gvs.insert(GV);
if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
if (GVar->hasInitializer())
consts.push_back(GVar->getInitializer());
consts.insert(GVar->getInitializer());
} else if (Constant* C = dyn_cast<Constant>(operand))
consts.push_back(C);
consts.insert(C);
}
}
}
// Print the function declarations for any functions encountered
nl(Out) << "// Function Declarations"; nl(Out);
for (std::vector<GlobalValue*>::iterator I = gvs.begin(), E = gvs.end();
for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
I != E; ++I) {
if (Function* Fun = dyn_cast<Function>(*I)) {
if (!is_inline || Fun != F)
@ -1460,7 +1461,7 @@ void CppWriter::printFunctionUses(const Function* F) {
// Print the global variable declarations for any variables encountered
nl(Out) << "// Global Variable Declarations"; nl(Out);
for (std::vector<GlobalValue*>::iterator I = gvs.begin(), E = gvs.end();
for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
I != E; ++I) {
if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I))
printVariableHead(F);
@ -1468,7 +1469,7 @@ void CppWriter::printFunctionUses(const Function* F) {
// Print the constants found
nl(Out) << "// Constant Definitions"; nl(Out);
for (std::vector<Constant*>::iterator I = consts.begin(), E = consts.end();
for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(), E = consts.end();
I != E; ++I) {
printConstant(*I);
}
@ -1477,7 +1478,7 @@ void CppWriter::printFunctionUses(const Function* F) {
// been emitted. These definitions just couple the gvars with their constant
// initializers.
nl(Out) << "// Global Variable Definitions"; nl(Out);
for (std::vector<GlobalValue*>::iterator I = gvs.begin(), E = gvs.end();
for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
I != E; ++I) {
if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I))
printVariableBody(GV);