http://reviews.llvm.org/D4248
Files:
include/clang/Basic/TargetBuiltins.h
include/clang/module.modulemap
lib/Basic/Targets.cpp
lib/CodeGen/CGBuiltin.cpp
lib/CodeGen/CodeGenFunction.h
test/CodeGenOpenCL/builtins-r600.cl
Index: include/clang/Basic/TargetBuiltins.h
===================================================================
--- include/clang/Basic/TargetBuiltins.h
+++ include/clang/Basic/TargetBuiltins.h
@@ -72,6 +72,15 @@
};
}
+ /// \brief R600 builtins
+ namespace R600 {
+ enum {
+ LastTIBuiltin = clang::Builtin::FirstTSBuiltin - 1,
+ #define BUILTIN(ID, TYPE, ATTRS) BI##ID,
+ #include "clang/Basic/BuiltinsR600.def"
+ LastTSBuiltin
+ };
+ }
/// \brief X86 builtins
namespace X86 {
Index: include/clang/module.modulemap
===================================================================
--- include/clang/module.modulemap
+++ include/clang/module.modulemap
@@ -36,6 +36,7 @@
exclude header "Basic/BuiltinsNEON.def"
exclude header "Basic/BuiltinsNVPTX.def"
exclude header "Basic/BuiltinsPPC.def"
+ exclude header "Basic/BuiltinsR600.def"
exclude header "Basic/BuiltinsX86.def"
exclude header "Basic/BuiltinsXCore.def"
exclude header "Basic/DiagnosticOptions.def"
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -1458,6 +1458,8 @@
"-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64";
class R600TargetInfo : public TargetInfo {
+ static const Builtin::Info BuiltinInfo[];
+
/// \brief The GPU profiles supported by the R600 target.
enum GPUKind {
GK_NONE,
@@ -1504,11 +1506,10 @@
void getTargetBuiltins(const Builtin::Info *&Records,
unsigned &NumRecords) const override {
- Records = nullptr;
- NumRecords = 0;
+ Records = BuiltinInfo;
+ NumRecords = clang::R600::LastTSBuiltin - Builtin::FirstTSBuiltin;
}
-
void getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const override {
Builder.defineMacro("__R600__");
@@ -1584,6 +1585,12 @@
}
};
+const Builtin::Info R600TargetInfo::BuiltinInfo[] = {
+#define BUILTIN(ID, TYPE, ATTRS) \
+ { #ID, TYPE, ATTRS, 0, ALL_LANGUAGES },
+#include "clang/Basic/BuiltinsR600.def"
+};
+
} // end anonymous namespace
namespace {
Index: lib/CodeGen/CGBuiltin.cpp
===================================================================
--- lib/CodeGen/CGBuiltin.cpp
+++ lib/CodeGen/CGBuiltin.cpp
@@ -1689,6 +1689,8 @@
case llvm::Triple::ppc64:
case llvm::Triple::ppc64le:
return EmitPPCBuiltinExpr(BuiltinID, E);
+ case llvm::Triple::r600:
+ return EmitR600BuiltinExpr(BuiltinID, E);
default:
return nullptr;
}
@@ -5952,3 +5954,38 @@
}
}
}
+
+Value *CodeGenFunction::EmitR600BuiltinExpr(unsigned BuiltinID,
+ const CallExpr *E) {
+ switch (BuiltinID) {
+ case R600::BI__builtin_amdgpu_div_scale:
+ case R600::BI__builtin_amdgpu_div_scalef: {
+ // Translate from the intrinsics's struct return to the builtin's out
+ // argument.
+
+ std::pair<llvm::Value *, unsigned> FlagOutPtr
+ = EmitPointerWithAlignment(E->getArg(3));
+
+ llvm::Value *X = EmitScalarExpr(E->getArg(0));
+ llvm::Value *Y = EmitScalarExpr(E->getArg(1));
+ llvm::Value *Z = EmitScalarExpr(E->getArg(2));
+
+ llvm::Value *Callee = CGM.getIntrinsic(Intrinsic::AMDGPU_div_scale,
+ X->getType());
+
+ llvm::Value *Tmp = Builder.CreateCall3(Callee, X, Y, Z);
+
+ llvm::Value *Result = Builder.CreateExtractValue(Tmp, 0);
+ llvm::Value *Flag = Builder.CreateExtractValue(Tmp, 1);
+
+ llvm::Type *RealFlagType
+ = FlagOutPtr.first->getType()->getPointerElementType();
+
+ llvm::Value *FlagExt = Builder.CreateZExt(Flag, RealFlagType);
+ llvm::StoreInst *FlagStore = Builder.CreateStore(FlagExt, FlagOutPtr.first);
+ FlagStore->setAlignment(FlagOutPtr.second);
+ return Result;
+ } default:
+ return nullptr;
+ }
+}
Index: lib/CodeGen/CodeGenFunction.h
===================================================================
--- lib/CodeGen/CodeGenFunction.h
+++ lib/CodeGen/CodeGenFunction.h
@@ -2252,6 +2252,7 @@
llvm::Value *BuildVector(ArrayRef<llvm::Value*> Ops);
llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E);
llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
+ llvm::Value *EmitR600BuiltinExpr(unsigned BuiltinID, const CallExpr *E);
llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E);
llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E);
Index: test/CodeGenOpenCL/builtins-r600.cl
===================================================================
--- /dev/null
+++ test/CodeGenOpenCL/builtins-r600.cl
@@ -0,0 +1,30 @@
+// REQUIRES: r600-registered-target
+// RUN: %clang_cc1 -triple r600-unknown-unknown -S -emit-llvm -o - %s | FileCheck %s
+
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+
+// CHECK-LABEL: @test_div_scale_f64
+// CHECK: call { double, i1 } @llvm.AMDGPU.div.scale.f64(double %a, double %b, i1 true)
+// CHECK-DAG: [[FLAG:%.+]] = extractvalue { double, i1 } %{{.+}}, 1
+// CHECK-DAG: [[VAL:%.+]] = extractvalue { double, i1 } %{{.+}}, 0
+// CHECK: [[FLAGEXT:%.+]] = zext i1 [[FLAG]] to i32
+// CHECK: store i32 [[FLAGEXT]]
+void test_div_scale_f64(global double* out, global int* flagout, double a, double b)
+{
+ bool flag;
+ *out = __builtin_amdgpu_div_scale(a, b, true, &flag);
+ *flagout = flag;
+}
+
+// CHECK-LABEL: @test_div_scale_f32
+// CHECK: call { float, i1 } @llvm.AMDGPU.div.scale.f32(float %a, float %b, i1 true)
+// CHECK-DAG: [[FLAG:%.+]] = extractvalue { float, i1 } %{{.+}}, 1
+// CHECK-DAG: [[VAL:%.+]] = extractvalue { float, i1 } %{{.+}}, 0
+// CHECK: [[FLAGEXT:%.+]] = zext i1 [[FLAG]] to i32
+// CHECK: store i32 [[FLAGEXT]]
+void test_div_scale_f32(global float* out, global int* flagout, float a, float b)
+{
+ bool flag;
+ *out = __builtin_amdgpu_div_scalef(a, b, true, &flag);
+ *flagout = flag;
+}
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