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Make IRBuilder support StringRef for building strings.

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Also document that the global variables produced are mergable.

llvm-svn: 129330
This commit is contained in:
Nick Lewycky 2011-04-12 00:29:07 +00:00
parent 17ca2afa04
commit 7ee6960a5f
2 changed files with 7 additions and 5 deletions
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10
include/llvm/Support/IRBuilder.h
View File

@ -18,6 +18,7 @@
#include "llvm/Instructions.h"
#include "llvm/BasicBlock.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/ConstantFolder.h"
@ -153,9 +154,10 @@ public:
/// CreateGlobalString - Make a new global variable with an initializer that
/// has array of i8 type filled in with the nul terminated string value
/// specified. If Name is specified, it is the name of the global variable
/// created.
Value *CreateGlobalString(const char *Str = "", const Twine &Name = "");
/// specified. The new global variable will be marked mergable with any
/// others of the same contents. If Name is specified, it is the name of the
/// global variable created.
Value *CreateGlobalString(StringRef Str, const Twine &Name = "");
/// getInt1 - Get a constant value representing either true or false.
ConstantInt *getInt1(bool V) {
@ -862,7 +864,7 @@ public:
/// CreateGlobalStringPtr - Same as CreateGlobalString, but return a pointer
/// with "i8*" type instead of a pointer to array of i8.
Value *CreateGlobalStringPtr(const char *Str = "", const Twine &Name = "") {
Value *CreateGlobalStringPtr(StringRef Str, const Twine &Name = "") {
Value *gv = CreateGlobalString(Str, Name);
Value *zero = ConstantInt::get(Type::getInt32Ty(Context), 0);
Value *Args[] = { zero, zero };

2
lib/VMCore/IRBuilder.cpp
View File

@ -23,7 +23,7 @@ using namespace llvm;
/// has array of i8 type filled in with the nul terminated string value
/// specified. If Name is specified, it is the name of the global variable
/// created.
Value *IRBuilderBase::CreateGlobalString(const char *Str, const Twine &Name) {
Value *IRBuilderBase::CreateGlobalString(StringRef Str, const Twine &Name) {
Constant *StrConstant = ConstantArray::get(Context, Str, true);
Module &M = *BB->getParent()->getParent();
GlobalVariable *GV = new GlobalVariable(M, StrConstant->getType(),