[AMDGPU] Remove use of OpenCL triple environment and replace with function attribute for AMDGPU

- Remove use of the opencl and amdopencl environment member of the target triple for the AMDGPU target.
- Use function attribute to communicate to the AMDGPU backend to add implicit arguments for OpenCL kernels for the AMDHSA OS.

Differential Revision: https://reviews.llvm.org/D43736

llvm-svn: 328349

1 files changed, 0 insertions, 2 deletions

diff --git a/llvm/lib/Support/Triple.cpp b/llvm/lib/Support/Triple.cpp
index 5062fc43266..feeb10ad899 100644
--- a/llvm/lib/Support/Triple.cpp
+++ b/llvm/lib/Support/Triple.cpp
@@ -233,7 +233,6 @@ StringRef Triple::getEnvironmentTypeName(EnvironmentType Kind) {
   case Itanium: return "itanium";
   case Cygnus: return "cygnus";
   case CoreCLR: return "coreclr";
-  case OpenCL: return "opencl";
   case Simulator: return "simulator";
   }
 
@@ -523,7 +522,6 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
     .StartsWith("itanium", Triple::Itanium)
     .StartsWith("cygnus", Triple::Cygnus)
     .StartsWith("coreclr", Triple::CoreCLR)
-    .StartsWith("opencl", Triple::OpenCL)
     .StartsWith("simulator", Triple::Simulator)
     .Default(Triple::UnknownEnvironment);
 }