Author: jvesely Date: Thu Sep 7 12:39:10 2017 New Revision: 312742 URL: http://llvm.org/viewvc/llvm-project?rev=312742&view=rev Log: [OpenCL] Add half load and store builtins
This enables load/stores of half type, without half being a legal type. Differential Revision: https://reviews.llvm.org/D37231 Added: cfe/trunk/test/CodeGenOpenCL/no-half.cl Modified: cfe/trunk/include/clang/Basic/Builtins.def cfe/trunk/include/clang/Basic/Builtins.h cfe/trunk/lib/Basic/Builtins.cpp cfe/trunk/lib/CodeGen/CGBuiltin.cpp Modified: cfe/trunk/include/clang/Basic/Builtins.def URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Builtins.def?rev=312742&r1=312741&r2=312742&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/Builtins.def (original) +++ cfe/trunk/include/clang/Basic/Builtins.def Thu Sep 7 12:39:10 2017 @@ -1424,6 +1424,12 @@ LANGBUILTIN(to_global, "v*v*", "tn", OCL LANGBUILTIN(to_local, "v*v*", "tn", OCLC20_LANG) LANGBUILTIN(to_private, "v*v*", "tn", OCLC20_LANG) +// OpenCL half load/store builtin +LANGBUILTIN(__builtin_store_half, "vdh*", "n", ALL_OCLC_LANGUAGES) +LANGBUILTIN(__builtin_store_halff, "vfh*", "n", ALL_OCLC_LANGUAGES) +LANGBUILTIN(__builtin_load_half, "dhC*", "nc", ALL_OCLC_LANGUAGES) +LANGBUILTIN(__builtin_load_halff, "fhC*", "nc", ALL_OCLC_LANGUAGES) + // Builtins for os_log/os_trace BUILTIN(__builtin_os_log_format_buffer_size, "zcC*.", "p:0:nut") BUILTIN(__builtin_os_log_format, "v*v*cC*.", "p:0:nt") Modified: cfe/trunk/include/clang/Basic/Builtins.h URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Builtins.h?rev=312742&r1=312741&r2=312742&view=diff ============================================================================== --- cfe/trunk/include/clang/Basic/Builtins.h (original) +++ cfe/trunk/include/clang/Basic/Builtins.h Thu Sep 7 12:39:10 2017 @@ -36,10 +36,12 @@ enum LanguageID { CXX_LANG = 0x4, // builtin for cplusplus only. OBJC_LANG = 0x8, // builtin for objective-c and objective-c++ MS_LANG = 0x10, // builtin requires MS mode. - OCLC20_LANG = 0x20, // builtin for OpenCL C only. + OCLC20_LANG = 0x20, // builtin for OpenCL C 2.0 only. + OCLC1X_LANG = 0x40, // builtin for OpenCL C 1.x only. ALL_LANGUAGES = C_LANG | CXX_LANG | OBJC_LANG, // builtin for all languages. ALL_GNU_LANGUAGES = ALL_LANGUAGES | GNU_LANG, // builtin requires GNU mode. - ALL_MS_LANGUAGES = ALL_LANGUAGES | MS_LANG // builtin requires MS mode. + ALL_MS_LANGUAGES = ALL_LANGUAGES | MS_LANG, // builtin requires MS mode. + ALL_OCLC_LANGUAGES = OCLC1X_LANG | OCLC20_LANG // builtin for OCLC languages. }; namespace Builtin { Modified: cfe/trunk/lib/Basic/Builtins.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Builtins.cpp?rev=312742&r1=312741&r2=312742&view=diff ============================================================================== --- cfe/trunk/lib/Basic/Builtins.cpp (original) +++ cfe/trunk/lib/Basic/Builtins.cpp Thu Sep 7 12:39:10 2017 @@ -69,9 +69,14 @@ bool Builtin::Context::builtinIsSupporte bool MSModeUnsupported = !LangOpts.MicrosoftExt && (BuiltinInfo.Langs & MS_LANG); bool ObjCUnsupported = !LangOpts.ObjC1 && BuiltinInfo.Langs == OBJC_LANG; - bool OclCUnsupported = LangOpts.OpenCLVersion != 200 && - BuiltinInfo.Langs == OCLC20_LANG; + bool OclC1Unsupported = (LangOpts.OpenCLVersion / 100) != 1 && + (BuiltinInfo.Langs & ALL_OCLC_LANGUAGES ) == OCLC1X_LANG; + bool OclC2Unsupported = LangOpts.OpenCLVersion != 200 && + (BuiltinInfo.Langs & ALL_OCLC_LANGUAGES) == OCLC20_LANG; + bool OclCUnsupported = !LangOpts.OpenCL && + (BuiltinInfo.Langs & ALL_OCLC_LANGUAGES); return !BuiltinsUnsupported && !MathBuiltinsUnsupported && !OclCUnsupported && + !OclC1Unsupported && !OclC2Unsupported && !GnuModeUnsupported && !MSModeUnsupported && !ObjCUnsupported; } Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=312742&r1=312741&r2=312742&view=diff ============================================================================== --- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original) +++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Thu Sep 7 12:39:10 2017 @@ -2768,6 +2768,24 @@ RValue CodeGenFunction::EmitBuiltinExpr( Name), {NDRange, Block})); } + + case Builtin::BI__builtin_store_half: + case Builtin::BI__builtin_store_halff: { + Value *Val = EmitScalarExpr(E->getArg(0)); + Address Address = EmitPointerWithAlignment(E->getArg(1)); + Value *HalfVal = Builder.CreateFPTrunc(Val, Builder.getHalfTy()); + return RValue::get(Builder.CreateStore(HalfVal, Address)); + } + case Builtin::BI__builtin_load_half: { + Address Address = EmitPointerWithAlignment(E->getArg(0)); + Value *HalfVal = Builder.CreateLoad(Address); + return RValue::get(Builder.CreateFPExt(HalfVal, Builder.getDoubleTy())); + } + case Builtin::BI__builtin_load_halff: { + Address Address = EmitPointerWithAlignment(E->getArg(0)); + Value *HalfVal = Builder.CreateLoad(Address); + return RValue::get(Builder.CreateFPExt(HalfVal, Builder.getFloatTy())); + } case Builtin::BIprintf: if (getTarget().getTriple().isNVPTX()) return EmitNVPTXDevicePrintfCallExpr(E, ReturnValue); Added: cfe/trunk/test/CodeGenOpenCL/no-half.cl URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenOpenCL/no-half.cl?rev=312742&view=auto ============================================================================== --- cfe/trunk/test/CodeGenOpenCL/no-half.cl (added) +++ cfe/trunk/test/CodeGenOpenCL/no-half.cl Thu Sep 7 12:39:10 2017 @@ -0,0 +1,39 @@ +// RUN: %clang_cc1 %s -cl-std=cl2.0 -emit-llvm -o - -triple spir-unknown-unknown | FileCheck %s +// RUN: %clang_cc1 %s -cl-std=cl1.2 -emit-llvm -o - -triple spir-unknown-unknown | FileCheck %s +// RUN: %clang_cc1 %s -cl-std=cl1.1 -emit-llvm -o - -triple spir-unknown-unknown | FileCheck %s + +#pragma OPENCL EXTENSION cl_khr_fp64:enable + +// CHECK-LABEL: @test_store_float(float %foo, half addrspace({{.}}){{.*}} %bar) +__kernel void test_store_float(float foo, __global half* bar) +{ + __builtin_store_halff(foo, bar); +// CHECK: [[HALF_VAL:%.*]] = fptrunc float %foo to half +// CHECK: store half [[HALF_VAL]], half addrspace({{.}})* %bar, align 2 +} + +// CHECK-LABEL: @test_store_double(double %foo, half addrspace({{.}}){{.*}} %bar) +__kernel void test_store_double(double foo, __global half* bar) +{ + __builtin_store_half(foo, bar); +// CHECK: [[HALF_VAL:%.*]] = fptrunc double %foo to half +// CHECK: store half [[HALF_VAL]], half addrspace({{.}})* %bar, align 2 +} + +// CHECK-LABEL: @test_load_float(float addrspace({{.}}){{.*}} %foo, half addrspace({{.}}){{.*}} %bar) +__kernel void test_load_float(__global float* foo, __global half* bar) +{ + foo[0] = __builtin_load_halff(bar); +// CHECK: [[HALF_VAL:%.*]] = load half, half addrspace({{.}})* %bar +// CHECK: [[FULL_VAL:%.*]] = fpext half [[HALF_VAL]] to float +// CHECK: store float [[FULL_VAL]], float addrspace({{.}})* %foo +} + +// CHECK-LABEL: @test_load_double(double addrspace({{.}}){{.*}} %foo, half addrspace({{.}}){{.*}} %bar) +__kernel void test_load_double(__global double* foo, __global half* bar) +{ + foo[0] = __builtin_load_half(bar); +// CHECK: [[HALF_VAL:%.*]] = load half, half addrspace({{.}})* %bar +// CHECK: [[FULL_VAL:%.*]] = fpext half [[HALF_VAL]] to double +// CHECK: store double [[FULL_VAL]], double addrspace({{.}})* %foo +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits