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Add command-line option to specify position-independent codegen

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This commit is contained in:
Matt Pharr
2011-09-06 11:12:43 -07:00
parent 743d82e935
commit c76ef7b174
3 changed files with 18 additions and 5 deletions
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9
ispc.cpp
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@@ -72,7 +72,7 @@ Module *m;
bool
Target::GetTarget(const char *arch, const char *cpu, const char *isa,
Target *t) {
bool pic, Target *t) {
if (cpu == NULL) {
std::string hostCPU = llvm::sys::getHostCPUName();
if (hostCPU.size() > 0)
@@ -100,6 +100,8 @@ Target::GetTarget(const char *arch, const char *cpu, const char *isa,
bool error = false;
t->generatePIC = pic;
// Make sure the target architecture is a known one; print an error
// with the valid ones otherwise.
t->target = NULL;
@@ -228,14 +230,17 @@ llvm::TargetMachine *
Target::GetTargetMachine() const {
std::string triple = GetTripleString();
llvm::Reloc::Model relocModel = generatePIC ? llvm::Reloc::PIC_ :
llvm::Reloc::Default;
#if defined(LLVM_3_0svn) || defined(LLVM_3_0)
std::string featuresString = attributes;
llvm::TargetMachine *targetMachine =
target->createTargetMachine(triple, cpu, featuresString);
target->createTargetMachine(triple, cpu, featuresString, relocModel);
#else
std::string featuresString = cpu + std::string(",") + attributes;
llvm::TargetMachine *targetMachine =
target->createTargetMachine(triple, featuresString);
targetMachine->setRelocationModel(relocModel);
#endif
assert(targetMachine != NULL);