Add AMDGPU related triple vendors/OSes

[arsenm]

Summary

As support expands to more runtimes, we'll need to
distinguish between more than just HSA and unknown.
This also lets us stop using unknown everywhere.

[echristo]

Weirdly confusing, but OK.

[• tstellarAMD]

lib/Support/Triple.cpp

450

I'm not sure about this one. It only really makes sense to use this with the amdgcn target. It seems like maybe this should be something more generic (mesa?).

[arsenm]

lib/Support/Triple.cpp

450

Neither am I. Mesa should definitely be the vendor though, not the OS. Michel said on IRC that a mesa vulkan driver will probably end up using a different ABI, so we will probably need to distinguish those.

[echristo]

Well you don't need a separate triple to handle an abi difference.
TargetOptions can take an abi name.

[mareko]

lib/Support/Triple.cpp

450

AFAIK, there won't be any Mesa Vulkan driver. The Vulkan driver will be a completely separate project.

[arsenm]

Use mesa3d for the OS. The clover vs. graphics abi difference will be handled not as an OS

[echristo]

Sure it isn't an environment? (I have no idea, just checking)

[arsenm]

In D16909#346679, @echristo wrote:

Sure it isn't an environment? (I have no idea, just checking)

We've been treating the driver as the operating system. I have no idea what the OS would mean if mesa is an environment, The host OS is irrelevant. I'm still iffy about whether clover qualifies as a separate OS from the graphics driver, since it doesn't really share any of the same interface to kernels despite being another mesa project.

[• tstellarAMD]

I think this is OK. LGTM.

[arsenm]

r260790

include/llvm/ADT/Triple.h

enum VendorType {
     BGQ,
     Freescale,
     IBM,
     ImaginationTechnologies,
     MipsTechnologies,
     NVIDIA,
     CSR,
     Myriad,
-    LastVendorType = Myriad
+    AMD,
+    Mesa,
+    LastVendorType = Mesa
   };
   enum OSType {
     UnknownOS,
 
     CloudABI,
     Darwin,
     DragonFly,
     FreeBSD,
enum OSType {
     AIX,
     CUDA,       // NVIDIA CUDA
     NVCL,       // NVIDIA OpenCL
     AMDHSA,     // AMD HSA Runtime
     PS4,
     ELFIAMCU,
     TvOS,       // Apple tvOS
     WatchOS,    // Apple watchOS
-    LastOSType = WatchOS
+    Mesa3D,
+    LastOSType = Mesa3D
   };
   enum EnvironmentType {
     UnknownEnvironment,
 
     GNU,
     GNUEABI,
     GNUEABIHF,
     GNUX32,

lib/Support/Triple.cpp

const char *Triple::getVendorTypeName(VendorType Kind) {
   case BGQ: return "bgq";
   case Freescale: return "fsl";
   case IBM: return "ibm";
   case ImaginationTechnologies: return "img";
   case MipsTechnologies: return "mti";
   case NVIDIA: return "nvidia";
   case CSR: return "csr";
   case Myriad: return "myriad";
+  case AMD: return "amd";
+  case Mesa: return "mesa";
   }
 
   llvm_unreachable("Invalid VendorType!");
 }
 
 const char *Triple::getOSTypeName(OSType Kind) {
   switch (Kind) {
   case UnknownOS: return "unknown";
const char *Triple::getOSTypeName(OSType Kind) {
   case AIX: return "aix";
   case CUDA: return "cuda";
   case NVCL: return "nvcl";
   case AMDHSA: return "amdhsa";
   case PS4: return "ps4";
   case ELFIAMCU: return "elfiamcu";
   case TvOS: return "tvos";
   case WatchOS: return "watchos";
+  case Mesa3D: return "mesa3d";
   }
 
   llvm_unreachable("Invalid OSType");
 }
 
 const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
   switch (Kind) {
   case UnknownEnvironment: return "unknown";
return StringSwitch<Triple::VendorType>(VendorName)
     .Case("bgq", Triple::BGQ)
     .Case("fsl", Triple::Freescale)
     .Case("ibm", Triple::IBM)
     .Case("img", Triple::ImaginationTechnologies)
     .Case("mti", Triple::MipsTechnologies)
     .Case("nvidia", Triple::NVIDIA)
     .Case("csr", Triple::CSR)
     .Case("myriad", Triple::Myriad)
+    .Case("amd", Triple::AMD)
+    .Case("mesa", Triple::Mesa)
     .Default(Triple::UnknownVendor);
 }
 
 static Triple::OSType parseOS(StringRef OSName) {
   return StringSwitch<Triple::OSType>(OSName)
     .StartsWith("cloudabi", Triple::CloudABI)
     .StartsWith("darwin", Triple::Darwin)
     .StartsWith("dragonfly", Triple::DragonFly)
return StringSwitch<Triple::OSType>(OSName)
     .StartsWith("aix", Triple::AIX)
     .StartsWith("cuda", Triple::CUDA)
     .StartsWith("nvcl", Triple::NVCL)
     .StartsWith("amdhsa", Triple::AMDHSA)
     .StartsWith("ps4", Triple::PS4)
     .StartsWith("elfiamcu", Triple::ELFIAMCU)
     .StartsWith("tvos", Triple::TvOS)
     .StartsWith("watchos", Triple::WatchOS)
+    .StartsWith("mesa3d", Triple::Mesa3D)
     .Default(Triple::UnknownOS);
 }
 
 static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
   return StringSwitch<Triple::EnvironmentType>(EnvironmentName)
     .StartsWith("eabihf", Triple::EABIHF)
     .StartsWith("eabi", Triple::EABI)
     .StartsWith("gnueabihf", Triple::GNUEABIHF)
     .StartsWith("gnueabi", Triple::GNUEABI)

unittests/ADT/TripleTest.cpp

TEST(TripleTest, ParsedIDs) {
   EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
 
   T = Triple("avr");
   EXPECT_EQ(Triple::avr, T.getArch());
   EXPECT_EQ(Triple::UnknownVendor, T.getVendor());
   EXPECT_EQ(Triple::UnknownOS, T.getOS());
   EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
 
+  T = Triple("amdgcn-mesa-mesa3d");
+  EXPECT_EQ(Triple::amdgcn, T.getArch());
+  EXPECT_EQ(Triple::Mesa, T.getVendor());
+  EXPECT_EQ(Triple::Mesa3D, T.getOS());
+  EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
+
+  T = Triple("amdgcn-amd-amdhsa");
+  EXPECT_EQ(Triple::amdgcn, T.getArch());
+  EXPECT_EQ(Triple::AMD, T.getVendor());
+  EXPECT_EQ(Triple::AMDHSA, T.getOS());
+  EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
+
   T = Triple("huh");
   EXPECT_EQ(Triple::UnknownArch, T.getArch());
 }
 
 static std::string Join(StringRef A, StringRef B, StringRef C) {
   std::string Str = A; Str += '-'; Str += B; Str += '-'; Str += C;
   return Str;
 }