[Beignet] [PATCH] GBE: add fastcall support.

[Zhigang Gong]

I found some optimization pass may add fastcall attribute to some
builtin functions. We need to add the corresponding support.

Signed-off-by: Zhigang Gong <zhigang.gong at intel.com>
---
 backend/src/llvm/llvm_gen_backend.cpp   | 4 +++-
 backend/src/llvm/llvm_printf_parser.cpp | 1 +
 backend/src/llvm/llvm_scalarize.cpp     | 4 +++-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/backend/src/llvm/llvm_gen_backend.cpp b/backend/src/llvm/llvm_gen_backend.cpp
index 238f572..aad638f 100644
--- a/backend/src/llvm/llvm_gen_backend.cpp
+++ b/backend/src/llvm/llvm_gen_backend.cpp
@@ -2021,9 +2021,11 @@ namespace gbe
       case CallingConv::PTX_Kernel:
 #else
       case CallingConv::C:
+      case CallingConv::Fast:
 #endif
         break;
-      default: GBE_ASSERTM(false, "Unsupported calling convention");
+      default:
+        GBE_ASSERTM(false, "Unsupported calling convention");
     }
 
     ctx.startFunction(F.getName());
diff --git a/backend/src/llvm/llvm_printf_parser.cpp b/backend/src/llvm/llvm_printf_parser.cpp
index 52da2e5..8e662b3 100644
--- a/backend/src/llvm/llvm_printf_parser.cpp
+++ b/backend/src/llvm/llvm_printf_parser.cpp
@@ -564,6 +564,7 @@ error:
       case CallingConv::PTX_Kernel:
 #else
       case CallingConv::C:
+      case CallingConv::Fast:
 #endif
         break;
       default:
diff --git a/backend/src/llvm/llvm_scalarize.cpp b/backend/src/llvm/llvm_scalarize.cpp
index 4df849f..97a7615 100644
--- a/backend/src/llvm/llvm_scalarize.cpp
+++ b/backend/src/llvm/llvm_scalarize.cpp
@@ -788,9 +788,11 @@ namespace gbe {
     case CallingConv::PTX_Kernel:
 #else
     case CallingConv::C:
+    case CallingConv::Fast:
 #endif
       break;
-    default: GBE_ASSERTM(false, "Unsupported calling convention");
+    default:
+      GBE_ASSERTM(false, "Unsupported calling convention");
     }
 
     // As we inline all function calls, so skip non-kernel functions
-- 
1.9.1