[NVPTX] Add support for selecting CUDA vs OCL mode based on triple

IR for CUDA should use "nvptx[64]-nvidia-cuda", and IR for NV OpenCL should use "nvptx[64]-nvidia-nvcl"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184579 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ADT/Triple.h

@@ -81,7 +81,8 @@ public:
     BGP,
     BGQ,
     Freescale,
-    IBM
+    IBM,
+    NVIDIA
   };
   enum OSType {
     UnknownOS,
@@ -107,7 +108,9 @@ public:
     NaCl,       // Native Client
     CNK,        // BG/P Compute-Node Kernel
     Bitrig,
-    AIX
+    AIX,
+    CUDA,       // NVIDIA CUDA
+    NVCL        // NVIDIA OpenCL
   };
   enum EnvironmentType {
     UnknownEnvironment,

lib/Support/Triple.cpp

@@ -104,6 +104,7 @@ const char *Triple::getVendorTypeName(VendorType Kind) {
   case BGQ: return "bgq";
   case Freescale: return "fsl";
   case IBM: return "ibm";
+  case NVIDIA: return "nvidia";
   }
 
   llvm_unreachable("Invalid VendorType!");
@@ -135,6 +136,8 @@ const char *Triple::getOSTypeName(OSType Kind) {
   case CNK: return "cnk";
   case Bitrig: return "bitrig";
   case AIX: return "aix";
+  case CUDA: return "cuda";
+  case NVCL: return "nvcl";
   }
 
   llvm_unreachable("Invalid OSType");
@@ -260,6 +263,7 @@ static Triple::VendorType parseVendor(StringRef VendorName) {
     .Case("bgq", Triple::BGQ)
     .Case("fsl", Triple::Freescale)
     .Case("ibm", Triple::IBM)
+    .Case("nvidia", Triple::NVIDIA)
     .Default(Triple::UnknownVendor);
 }
 
@@ -287,6 +291,8 @@ static Triple::OSType parseOS(StringRef OSName) {
     .StartsWith("cnk", Triple::CNK)
     .StartsWith("bitrig", Triple::Bitrig)
     .StartsWith("aix", Triple::AIX)
+    .StartsWith("cuda", Triple::CUDA)
+    .StartsWith("nvcl", Triple::NVCL)
     .Default(Triple::UnknownOS);
 }
 

lib/Target/NVPTX/NVPTX.h

@@ -77,8 +77,7 @@ extern Target TheNVPTXTarget64;
 namespace NVPTX {
 enum DrvInterface {
   NVCL,
-  CUDA,
+  CUDA
-  TEST
 };
 
 // A field inside TSFlags needs a shift and a mask. The usage is

lib/Target/NVPTX/NVPTXSubtarget.cpp

@@ -19,23 +19,18 @@
 
 using namespace llvm;
 
-// Select Driver Interface
-#include "llvm/Support/CommandLine.h"
-namespace {
-cl::opt<NVPTX::DrvInterface> DriverInterface(
-    cl::desc("Choose driver interface:"),
-    cl::values(clEnumValN(NVPTX::NVCL, "drvnvcl", "Nvidia OpenCL driver"),
-               clEnumValN(NVPTX::CUDA, "drvcuda", "Nvidia CUDA driver"),
-               clEnumValN(NVPTX::TEST, "drvtest", "Plain Test"), clEnumValEnd),
-    cl::init(NVPTX::NVCL));
-}
 
 NVPTXSubtarget::NVPTXSubtarget(const std::string &TT, const std::string &CPU,
                                const std::string &FS, bool is64Bit)
     : NVPTXGenSubtargetInfo(TT, CPU, FS), Is64Bit(is64Bit), PTXVersion(0),
       SmVersion(20) {
 
-  drvInterface = DriverInterface;
+  Triple T(TT);
+
+  if (T.getOS() == Triple::NVCL)
+    drvInterface = NVPTX::NVCL;
+  else
+    drvInterface = NVPTX::CUDA;
 
   // Provide the default CPU if none
   std::string defCPU = "sm_20";

test/CodeGen/NVPTX/generic-to-nvvm.ll

@@ -1,6 +1,7 @@
-; RUN: llc < %s -march=nvptx -mcpu=sm_20 -drvcuda | FileCheck %s
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
+target triple = "nvptx-nvidia-cuda"
 
 ; Ensure global variables in address space 0 are promoted to address space 1
 

test/CodeGen/NVPTX/i1-global.ll

@@ -1,7 +1,7 @@
-; RUN: llc < %s -march=nvptx -mcpu=sm_20 -drvcuda | FileCheck %s
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
-
+target triple = "nvptx-nvidia-cuda"
 
 ; CHECK: .visible .global .align 1 .u8 mypred
 @mypred = addrspace(1) global i1 true, align 1

test/CodeGen/NVPTX/i1-param.ll

@@ -1,6 +1,7 @@
-; RUN: llc < %s -march=nvptx -mcpu=sm_20 -drvcuda | FileCheck %s
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
+target triple = "nvptx-nvidia-cuda"
 
 ; Make sure predicate (i1) operands to kernels get expanded out to .u8
 

test/CodeGen/NVPTX/load-sext-i1.ll

@@ -1,7 +1,7 @@
-; RUN: llc < %s -march=nvptx -mcpu=sm_20 -drvcuda | FileCheck %s
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
-
+target triple = "nvptx-nvidia-cuda"
 
 define void @main(i1* %a1, i32 %a2, i32* %arg3) {
 ; CHECK: ld.u8

test/CodeGen/NVPTX/refl1.ll

@@ -1,4 +1,6 @@
-; RUN: llc < %s -march=nvptx -mcpu=sm_20 -drvcuda | FileCheck %s
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
+
+target triple = "nvptx-nvidia-cuda"
 
 ; Function Attrs: nounwind
 ; CHECK: .entry foo