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Add support to the mangler for targets which require _'s on global symbols
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7741 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -14,14 +14,29 @@ class Module;
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#include <string>
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class Mangler {
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/// This keeps track of which global values have had their names
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/// mangled in the current module.
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///
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std::set<const Value *> MangledGlobals;
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Module &M;
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bool AddUnderscorePrefix;
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typedef std::map<const Value *, std::string> ValueMap;
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ValueMap Memo;
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unsigned Count;
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public:
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// Mangler ctor - if AddUnderscorePrefix is true, then all public global
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// symbols will be prefixed with an underscore.
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Mangler(Module &M, bool AddUnderscorePrefix = false);
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/// getValueName - Returns the mangled name of V, an LLVM Value,
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/// in the current module.
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///
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std::string getValueName(const Value *V);
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Mangler(Module &M_);
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/// makeNameProper - We don't want identifier names with ., space, or
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/// - in them, so we mangle these characters into the strings "d_",
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/// "s_", and "D_", respectively. This is a very simple mangling that
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@ -30,19 +45,6 @@ public:
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/// from getValueName.
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///
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static std::string makeNameProper(const std::string &x);
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private:
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/// This keeps track of which global values have had their names
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/// mangled in the current module.
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///
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std::set<const Value *> MangledGlobals;
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Module &M;
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typedef std::map<const Value *, std::string> ValueMap;
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ValueMap Memo;
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unsigned int Count;
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};
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#endif // LLVM_SUPPORT_MANGLER_H
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@ -42,8 +42,9 @@ std::string Mangler::getValueName(const Value *V) {
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// 2) V's name would collide if it is not mangled.
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//
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const GlobalValue* gv = dyn_cast<GlobalValue>(V);
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if(gv && !gv->hasInternalLinkage() && !MangledGlobals.count(gv)) {
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if (gv && !gv->hasInternalLinkage() && !MangledGlobals.count(gv)) {
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name = makeNameProper(gv->getName());
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if (AddUnderscorePrefix) name = "_" + name;
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} else {
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// Non-global, or global with internal linkage / colliding name
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// -> mangle.
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@ -54,12 +55,13 @@ std::string Mangler::getValueName(const Value *V) {
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name = "ltmp_" + utostr(Count++) + "_"
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+ utostr(V->getType()->getUniqueID());
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}
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Memo[V] = name;
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return name;
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}
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Mangler::Mangler(Module &M_) : M(M_)
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{
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Mangler::Mangler(Module &m, bool addUnderscorePrefix)
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: M(m), AddUnderscorePrefix(addUnderscorePrefix) {
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// Calculate which global values have names that will collide when we throw
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// away type information.
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std::set<std::string> FoundNames;
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@ -42,8 +42,9 @@ std::string Mangler::getValueName(const Value *V) {
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// 2) V's name would collide if it is not mangled.
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//
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const GlobalValue* gv = dyn_cast<GlobalValue>(V);
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if(gv && !gv->hasInternalLinkage() && !MangledGlobals.count(gv)) {
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if (gv && !gv->hasInternalLinkage() && !MangledGlobals.count(gv)) {
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name = makeNameProper(gv->getName());
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if (AddUnderscorePrefix) name = "_" + name;
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} else {
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// Non-global, or global with internal linkage / colliding name
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// -> mangle.
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@ -54,12 +55,13 @@ std::string Mangler::getValueName(const Value *V) {
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name = "ltmp_" + utostr(Count++) + "_"
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+ utostr(V->getType()->getUniqueID());
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}
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Memo[V] = name;
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return name;
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}
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Mangler::Mangler(Module &M_) : M(M_)
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{
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Mangler::Mangler(Module &m, bool addUnderscorePrefix)
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: M(m), AddUnderscorePrefix(addUnderscorePrefix) {
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// Calculate which global values have names that will collide when we throw
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// away type information.
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std::set<std::string> FoundNames;
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@ -42,8 +42,9 @@ std::string Mangler::getValueName(const Value *V) {
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// 2) V's name would collide if it is not mangled.
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//
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const GlobalValue* gv = dyn_cast<GlobalValue>(V);
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if(gv && !gv->hasInternalLinkage() && !MangledGlobals.count(gv)) {
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if (gv && !gv->hasInternalLinkage() && !MangledGlobals.count(gv)) {
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name = makeNameProper(gv->getName());
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if (AddUnderscorePrefix) name = "_" + name;
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} else {
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// Non-global, or global with internal linkage / colliding name
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// -> mangle.
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@ -54,12 +55,13 @@ std::string Mangler::getValueName(const Value *V) {
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name = "ltmp_" + utostr(Count++) + "_"
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+ utostr(V->getType()->getUniqueID());
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}
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Memo[V] = name;
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return name;
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}
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Mangler::Mangler(Module &M_) : M(M_)
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{
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Mangler::Mangler(Module &m, bool addUnderscorePrefix)
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: M(m), AddUnderscorePrefix(addUnderscorePrefix) {
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// Calculate which global values have names that will collide when we throw
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// away type information.
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std::set<std::string> FoundNames;
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