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ptx: add command-line options for gpu target and ptx version

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120423 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Che-Liang Chiou 2010-11-30 10:14:14 +00:00
parent c459d06ae6
commit 21d8b9bcad
2 changed files with 24 additions and 0 deletions
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18
lib/Target/PTX/PTXAsmPrinter.cpp
View File

@ -27,12 +27,21 @@
#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetRegistry.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
static cl::opt<std::string>
OptPTXVersion("ptx-version", cl::desc("Set PTX version"),
cl::init("1.4"));
static cl::opt<std::string>
OptPTXTarget("ptx-target", cl::desc("Set GPU target (comma-separated list)"),
cl::init("sm_10"));
namespace {
class PTXAsmPrinter : public AsmPrinter {
public:
@ -41,6 +50,8 @@ public:
const char *getPassName() const { return "PTX Assembly Printer"; }
virtual void EmitStartOfAsmFile(Module &M);
virtual bool runOnMachineFunction(MachineFunction &MF);
virtual void EmitFunctionBodyStart();
@ -85,6 +96,13 @@ static const char *getInstructionTypeName(const MachineInstr *MI) {
return NULL;
}
void PTXAsmPrinter::EmitStartOfAsmFile(Module &M)
{
OutStreamer.EmitRawText(Twine("\t.version " + OptPTXVersion));
OutStreamer.EmitRawText(Twine("\t.target " + OptPTXTarget));
OutStreamer.AddBlankLine();
}
bool PTXAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
SetupMachineFunction(MF);
EmitFunctionDeclaration();

6
test/CodeGen/PTX/options.ll Normal file
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@ -0,0 +1,6 @@
; RUN: llc < %s -march=ptx -ptx-version=2.0 | grep ".version 2.0"
; RUN: llc < %s -march=ptx -ptx-target=sm_20 | grep ".target sm_20"
define ptx_device void @t1() {
ret void
}