#include "PPCSubtarget.h"
#include "PPC.h"
-#include "llvm/Module.h"
+#include "llvm/GlobalValue.h"
#include "llvm/Target/TargetMachine.h"
#include "PPCGenSubtarget.inc"
+#include <cstdlib>
using namespace llvm;
#if defined(__APPLE__)
#endif
-PPCSubtarget::PPCSubtarget(const TargetMachine &tm, const Module &M,
- const std::string &FS, bool is64Bit)
- : TM(tm)
- , StackAlignment(16)
+PPCSubtarget::PPCSubtarget(const std::string &TT, const std::string &FS,
+ bool is64Bit)
+ : StackAlignment(16)
, DarwinDirective(PPC::DIR_NONE)
, IsGigaProcessor(false)
, Has64BitSupport(false)
// Set the boolean corresponding to the current target triple, or the default
// if one cannot be determined, to true.
- const std::string &TT = M.getTargetTriple();
if (TT.length() > 7) {
// Determine which version of darwin this is.
size_t DarwinPos = TT.find("-darwin");
else
DarwinVers = 8; // Minimum supported darwin is Tiger.
}
- } else if (TT.empty()) {
- // Try to autosense the subtarget from the host compiler.
-#if defined(__APPLE__)
-#if __APPLE_CC__ > 5400
- DarwinVers = 9; // GCC 5400+ is Leopard.
-#else
- DarwinVers = 8; // Minimum supported darwin is Tiger.
-#endif
-#endif
}
// Set up darwin-specific properties.
- if (isDarwin()) {
+ if (isDarwin())
HasLazyResolverStubs = true;
- AsmFlavor = NewMnemonic;
- } else {
- AsmFlavor = OldMnemonic;
- }
}
/// SetJITMode - This is called to inform the subtarget info that we are
/// hasLazyResolverStub - Return true if accesses to the specified global have
/// to go through a dyld lazy resolution stub. This means that an extra load
/// is required to get the address of the global.
-bool PPCSubtarget::hasLazyResolverStub(const GlobalValue *GV) const {
+bool PPCSubtarget::hasLazyResolverStub(const GlobalValue *GV,
+ const TargetMachine &TM) const {
// We never hae stubs if HasLazyResolverStubs=false or if in static mode.
if (!HasLazyResolverStubs || TM.getRelocationModel() == Reloc::Static)
return false;
-
+ // If symbol visibility is hidden, the extra load is not needed if
+ // the symbol is definitely defined in the current translation unit.
+ bool isDecl = GV->isDeclaration() && !GV->isMaterializable();
+ if (GV->hasHiddenVisibility() && !isDecl && !GV->hasCommonLinkage())
+ return false;
return GV->hasWeakLinkage() || GV->hasLinkOnceLinkage() ||
- GV->hasCommonLinkage() ||
- (GV->isDeclaration() && !GV->hasNotBeenReadFromBitcode());
+ GV->hasCommonLinkage() || isDecl;
}