From 49d982d8cbbbb6e01b6f8e4f173ed6325beab08b Mon Sep 17 00:00:00 2001
From: Artem Belevich <tra@google.com>
Date: Tue, 17 Aug 2021 12:27:37 -0700
Subject: [PATCH] [CUDA] Add support for CUDA-11.4

Differential Revision: https://reviews.llvm.org/D108239
---
 clang/include/clang/Basic/Cuda.h     |  4 +++-
 clang/lib/Basic/Cuda.cpp             | 12 ++++++++++++
 clang/lib/Basic/Targets/NVPTX.cpp    |  2 ++
 clang/lib/Driver/ToolChains/Cuda.cpp |  8 ++++++++
 llvm/lib/Target/NVPTX/NVPTX.td       |  4 ++++
 5 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/clang/include/clang/Basic/Cuda.h b/clang/include/clang/Basic/Cuda.h
index aa12724..1bdb007 100644
--- a/clang/include/clang/Basic/Cuda.h
+++ b/clang/include/clang/Basic/Cuda.h
@@ -31,7 +31,9 @@ enum class CudaVersion {
   CUDA_110,
   CUDA_111,
   CUDA_112,
-  LATEST = CUDA_112,
+  CUDA_113,
+  CUDA_114,
+  LATEST = CUDA_114,
   LATEST_SUPPORTED = CUDA_101,
 };
 const char *CudaVersionToString(CudaVersion V);
diff --git a/clang/lib/Basic/Cuda.cpp b/clang/lib/Basic/Cuda.cpp
index 766135b..2e34da7 100644
--- a/clang/lib/Basic/Cuda.cpp
+++ b/clang/lib/Basic/Cuda.cpp
@@ -36,6 +36,10 @@ const char *CudaVersionToString(CudaVersion V) {
     return "11.1";
   case CudaVersion::CUDA_112:
     return "11.2";
+  case CudaVersion::CUDA_113:
+    return "11.3";
+  case CudaVersion::CUDA_114:
+    return "11.4";
   }
   llvm_unreachable("invalid enum");
 }
@@ -54,6 +58,8 @@ CudaVersion CudaStringToVersion(const llvm::Twine &S) {
       .Case("11.0", CudaVersion::CUDA_110)
       .Case("11.1", CudaVersion::CUDA_111)
       .Case("11.2", CudaVersion::CUDA_112)
+      .Case("11.3", CudaVersion::CUDA_113)
+      .Case("11.4", CudaVersion::CUDA_114)
       .Default(CudaVersion::UNKNOWN);
 }
 
@@ -194,6 +200,8 @@ CudaVersion MaxVersionForCudaArch(CudaArch A) {
   case CudaArch::SM_20:
   case CudaArch::SM_21:
     return CudaVersion::CUDA_80;
+  case CudaArch::SM_30:
+    return CudaVersion::CUDA_110;
   default:
     return CudaVersion::LATEST;
   }
@@ -227,6 +235,10 @@ CudaVersion ToCudaVersion(llvm::VersionTuple Version) {
     return CudaVersion::CUDA_111;
   case 112:
     return CudaVersion::CUDA_112;
+  case 113:
+    return CudaVersion::CUDA_113;
+  case 114:
+    return CudaVersion::CUDA_114;
   default:
     return CudaVersion::UNKNOWN;
   }
diff --git a/clang/lib/Basic/Targets/NVPTX.cpp b/clang/lib/Basic/Targets/NVPTX.cpp
index c245753..0461a91 100644
--- a/clang/lib/Basic/Targets/NVPTX.cpp
+++ b/clang/lib/Basic/Targets/NVPTX.cpp
@@ -44,6 +44,8 @@ NVPTXTargetInfo::NVPTXTargetInfo(const llvm::Triple &Triple,
     if (!Feature.startswith("+ptx"))
       continue;
     PTXVersion = llvm::StringSwitch<unsigned>(Feature)
+                     .Case("+ptx74", 74)
+                     .Case("+ptx73", 73)
                      .Case("+ptx72", 72)
                      .Case("+ptx71", 71)
                      .Case("+ptx70", 70)
diff --git a/clang/lib/Driver/ToolChains/Cuda.cpp b/clang/lib/Driver/ToolChains/Cuda.cpp
index 37a4da80..0d94ad0 100644
--- a/clang/lib/Driver/ToolChains/Cuda.cpp
+++ b/clang/lib/Driver/ToolChains/Cuda.cpp
@@ -77,6 +77,12 @@ CudaVersion getCudaVersion(uint32_t raw_version) {
     return CudaVersion::CUDA_110;
   if (raw_version < 11020)
     return CudaVersion::CUDA_111;
+  if (raw_version < 11030)
+    return CudaVersion::CUDA_112;
+  if (raw_version < 11040)
+    return CudaVersion::CUDA_113;
+  if (raw_version < 11050)
+    return CudaVersion::CUDA_114;
   return CudaVersion::LATEST;
 }
 
@@ -720,6 +726,8 @@ void CudaToolChain::addClangTargetOptions(
   case CudaVersion::CUDA_##CUDA_VER:                                           \
     PtxFeature = "+ptx" #PTX_VER;                                              \
     break;
+    CASE_CUDA_VERSION(114, 74);
+    CASE_CUDA_VERSION(113, 73);
     CASE_CUDA_VERSION(112, 72);
     CASE_CUDA_VERSION(111, 71);
     CASE_CUDA_VERSION(110, 70);
diff --git a/llvm/lib/Target/NVPTX/NVPTX.td b/llvm/lib/Target/NVPTX/NVPTX.td
index 2b0972b..ecbf1e0 100644
--- a/llvm/lib/Target/NVPTX/NVPTX.td
+++ b/llvm/lib/Target/NVPTX/NVPTX.td
@@ -89,6 +89,10 @@ def PTX71 : SubtargetFeature<"ptx71", "PTXVersion", "71",
                              "Use PTX version 7.1">;
 def PTX72 : SubtargetFeature<"ptx72", "PTXVersion", "72",
                              "Use PTX version 7.2">;
+def PTX73 : SubtargetFeature<"ptx73", "PTXVersion", "73",
+                             "Use PTX version 7.3">;
+def PTX74 : SubtargetFeature<"ptx74", "PTXVersion", "74",
+                             "Use PTX version 7.4">;
 
 //===----------------------------------------------------------------------===//
 // NVPTX supported processors.
-- 
2.7.4