r272342 - RenderScript support in the Frontend

Pirama Arumuga Nainar via cfe-commits cfe-commits at lists.llvm.org
Thu Jun 9 16:34:20 PDT 2016


Author: pirama
Date: Thu Jun  9 18:34:20 2016
New Revision: 272342

URL: http://llvm.org/viewvc/llvm-project?rev=272342&view=rev
Log:
RenderScript support in the Frontend

Summary:

Create a new Frontend LangOpt to specify the renderscript language. It
is enabled by the "-x renderscript" option from the driver.

Add a "kernel" function attribute only for RenderScript (an "ignored
attribute" warning is generated otherwise).

Make the NativeHalfType and NativeHalfArgsAndReturns LangOpts be implied
by the RenderScript LangOpt.

Reviewers: rsmith

Subscribers: cfe-commits, srhines

Differential Revision: http://reviews.llvm.org/D21198

Added:
    cfe/trunk/test/Sema/renderscript.rs
Modified:
    cfe/trunk/include/clang/Basic/Attr.td
    cfe/trunk/include/clang/Basic/LangOptions.def
    cfe/trunk/include/clang/Frontend/FrontendOptions.h
    cfe/trunk/lib/Frontend/CompilerInvocation.cpp
    cfe/trunk/lib/Frontend/FrontendActions.cpp
    cfe/trunk/lib/Sema/SemaDeclAttr.cpp
    cfe/trunk/test/CodeGen/fp16-ops.c

Modified: cfe/trunk/include/clang/Basic/Attr.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Attr.td?rev=272342&r1=272341&r2=272342&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/Attr.td (original)
+++ cfe/trunk/include/clang/Basic/Attr.td Thu Jun  9 18:34:20 2016
@@ -728,6 +728,12 @@ def OpenCLNoSVM : Attr {
   let ASTNode = 0;
 }
 
+def Kernel : Attr {
+  let Spellings = [GNU<"kernel">];
+  let Subjects = SubjectList<[Function]>;
+  let Documentation = [Undocumented];
+}
+
 def Deprecated : InheritableAttr {
   let Spellings = [GCC<"deprecated">, Declspec<"deprecated">,
                    CXX11<"","deprecated", 201309>];

Modified: cfe/trunk/include/clang/Basic/LangOptions.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/LangOptions.def?rev=272342&r1=272341&r2=272342&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/LangOptions.def (original)
+++ cfe/trunk/include/clang/Basic/LangOptions.def Thu Jun  9 18:34:20 2016
@@ -185,6 +185,7 @@ LANGOPT(CUDA              , 1, 0, "CUDA"
 LANGOPT(OpenMP            , 32, 0, "OpenMP support and version of OpenMP (31, 40 or 45)")
 LANGOPT(OpenMPUseTLS      , 1, 0, "Use TLS for threadprivates or runtime calls")
 LANGOPT(OpenMPIsDevice    , 1, 0, "Generate code only for OpenMP target device")
+LANGOPT(RenderScript      , 1, 0, "RenderScript")
 
 LANGOPT(CUDAIsDevice      , 1, 0, "compiling for CUDA device")
 LANGOPT(CUDAAllowVariadicFunctions, 1, 0, "allowing variadic functions in CUDA device code")

Modified: cfe/trunk/include/clang/Frontend/FrontendOptions.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/FrontendOptions.h?rev=272342&r1=272341&r2=272342&view=diff
==============================================================================
--- cfe/trunk/include/clang/Frontend/FrontendOptions.h (original)
+++ cfe/trunk/include/clang/Frontend/FrontendOptions.h Thu Jun  9 18:34:20 2016
@@ -74,6 +74,7 @@ enum InputKind {
   IK_OpenCL,
   IK_CUDA,
   IK_PreprocessedCuda,
+  IK_RenderScript,
   IK_AST,
   IK_LLVM_IR
 };

Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=272342&r1=272341&r2=272342&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Thu Jun  9 18:34:20 2016
@@ -1292,6 +1292,7 @@ static InputKind ParseFrontendArgs(Front
       .Case("objective-c++-header", IK_ObjCXX)
       .Cases("ast", "pcm", IK_AST)
       .Case("ir", IK_LLVM_IR)
+      .Case("renderscript", IK_RenderScript)
       .Default(IK_None);
     if (DashX == IK_None)
       Diags.Report(diag::err_drv_invalid_value)
@@ -1495,6 +1496,9 @@ void CompilerInvocation::setLangDefaults
     case IK_PreprocessedObjCXX:
       LangStd = LangStandard::lang_gnucxx98;
       break;
+    case IK_RenderScript:
+      LangStd = LangStandard::lang_c99;
+      break;
     }
   }
 
@@ -1537,6 +1541,12 @@ void CompilerInvocation::setLangDefaults
   Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda ||
               LangStd == LangStandard::lang_cuda;
 
+  Opts.RenderScript = IK == IK_RenderScript;
+  if (Opts.RenderScript) {
+    Opts.NativeHalfType = 1;
+    Opts.NativeHalfArgsAndReturns = 1;
+  }
+
   // OpenCL and C++ both have bool, true, false keywords.
   Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
 

Modified: cfe/trunk/lib/Frontend/FrontendActions.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/FrontendActions.cpp?rev=272342&r1=272341&r2=272342&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/FrontendActions.cpp (original)
+++ cfe/trunk/lib/Frontend/FrontendActions.cpp Thu Jun  9 18:34:20 2016
@@ -735,6 +735,7 @@ void PrintPreambleAction::ExecuteAction(
   case IK_PreprocessedObjCXX:
   case IK_AST:
   case IK_LLVM_IR:
+  case IK_RenderScript:
     // We can't do anything with these.
     return;
   }

Modified: cfe/trunk/lib/Sema/SemaDeclAttr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDeclAttr.cpp?rev=272342&r1=272341&r2=272342&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaDeclAttr.cpp (original)
+++ cfe/trunk/lib/Sema/SemaDeclAttr.cpp Thu Jun  9 18:34:20 2016
@@ -4185,6 +4185,17 @@ static void handleTypeTagForDatatypeAttr
                                     Attr.getAttributeSpellingListIndex()));
 }
 
+static void handleKernelAttr(Sema &S, Decl *D, const AttributeList &Attr) {
+  if (S.LangOpts.RenderScript) {
+    D->addAttr(::new (S.Context)
+               KernelAttr(Attr.getRange(), S.Context,
+                          Attr.getAttributeSpellingListIndex()));
+  } else {
+    S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "kernel";
+  }
+}
+
+
 //===----------------------------------------------------------------------===//
 // Checker-specific attribute handlers.
 //===----------------------------------------------------------------------===//
@@ -5914,6 +5925,10 @@ static void ProcessDeclAttribute(Sema &S
   case AttributeList::AT_TypeTagForDatatype:
     handleTypeTagForDatatypeAttr(S, D, Attr);
     break;
+
+  case AttributeList::AT_Kernel:
+    handleKernelAttr(S, D, Attr);
+    break;
   }
 }
 

Modified: cfe/trunk/test/CodeGen/fp16-ops.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/fp16-ops.c?rev=272342&r1=272341&r2=272342&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/fp16-ops.c (original)
+++ cfe/trunk/test/CodeGen/fp16-ops.c Thu Jun  9 18:34:20 2016
@@ -7,6 +7,8 @@
 // RUN:   | FileCheck %s --check-prefix=NATIVE-HALF
 // RUN: %clang_cc1 -emit-llvm -o - -triple aarch64-none-linux-gnueabi -fnative-half-type %s \
 // RUN:   | FileCheck %s --check-prefix=NATIVE-HALF
+// RUN: %clang_cc1 -emit-llvm -o - -x renderscript %s \
+// RUN:   | FileCheck %s --check-prefix=NATIVE-HALF
 typedef unsigned cond_t;
 
 volatile cond_t test;

Added: cfe/trunk/test/Sema/renderscript.rs
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/renderscript.rs?rev=272342&view=auto
==============================================================================
--- cfe/trunk/test/Sema/renderscript.rs (added)
+++ cfe/trunk/test/Sema/renderscript.rs Thu Jun  9 18:34:20 2016
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -x renderscript -D__RENDERSCRIPT__ %s
+// RUN: %clang_cc1 -fsyntax-only -verify -x c %s
+
+#ifndef __RENDERSCRIPT__
+// expected-warning at +2 {{kernel attribute ignored}}
+#endif
+void __attribute__((kernel)) kernel();
+
+// expected-warning at +1 {{'kernel' attribute only applies to functions}}
+int __attribute__((kernel)) global;
+
+#ifndef __RENDERSCRIPT__
+// expected-error at +2 {{function return value cannot have __fp16 type; did you forget * ?}}
+#endif
+__fp16 fp16_return();
+
+#ifndef __RENDERSCRIPT__
+// expected-error at +2 {{parameters cannot have __fp16 type; did you forget * ?}}
+#endif
+void fp16_arg(__fp16 p);




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