5 files changed, 136 insertions, 0 deletions
diff --git a/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp b/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
new file mode 100644
index 0000000000000..b76b4007003f9
--- /dev/null
+++ b/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
@@ -0,0 +1,60 @@
+//===-- AMDGPUBaseInfo.cpp - AMDGPU Base encoding information--------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include "AMDGPUBaseInfo.h"
+#include "llvm/MC/SubtargetFeature.h"
+
+#define GET_SUBTARGETINFO_ENUM
+#include "AMDGPUGenSubtargetInfo.inc"
+#undef GET_SUBTARGETINFO_ENUM
+
+namespace llvm {
+namespace AMDGPU {
+
+IsaVersion getIsaVersion(const FeatureBitset &Features) {
+
+  if (Features.test(FeatureISAVersion7_0_0))
+    return {7, 0, 0};
+
+  if (Features.test(FeatureISAVersion7_0_1))
+    return {7, 0, 1};
+
+  if (Features.test(FeatureISAVersion8_0_0))
+    return {8, 0, 0};
+
+  if (Features.test(FeatureISAVersion8_0_1))
+    return {8, 0, 1};
+
+  return {0, 0, 0};
+}
+
+void initDefaultAMDKernelCodeT(amd_kernel_code_t &Header,
+                               const FeatureBitset &Features) {
+
+  IsaVersion ISA = getIsaVersion(Features);
+
+  memset(&Header, 0, sizeof(Header));
+
+  Header.amd_kernel_code_version_major = 1;
+  Header.amd_kernel_code_version_minor = 0;
+  Header.amd_machine_kind = 1; // AMD_MACHINE_KIND_AMDGPU
+  Header.amd_machine_version_major = ISA.Major;
+  Header.amd_machine_version_minor = ISA.Minor;
+  Header.amd_machine_version_stepping = ISA.Stepping;
+  Header.kernel_code_entry_byte_offset = sizeof(Header);
+  // wavefront_size is specified as a power of 2: 2^6 = 64 threads.
+  Header.wavefront_size = 6;
+  // These alignment values are specified in powers of two, so alignment =
+  // 2^n.  The minimum alignment is 2^4 = 16.
+  Header.kernarg_segment_alignment = 4;
+  Header.group_segment_alignment = 4;
+  Header.private_segment_alignment = 4;
+}
+
+} // End namespace AMDGPU
+} // End namespace llvm
diff --git a/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h b/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
new file mode 100644
index 0000000000000..f57028cc5bfd2
--- /dev/null
+++ b/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
@@ -0,0 +1,34 @@
+//===-- AMDGPUBaseInfo.h - Top level definitions for AMDGPU -----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUBASEINFO_H
+#define LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUBASEINFO_H
+
+#include "AMDKernelCodeT.h"
+
+namespace llvm {
+
+class FeatureBitset;
+
+namespace AMDGPU {
+
+struct IsaVersion {
+  unsigned Major;
+  unsigned Minor;
+  unsigned Stepping;
+};
+
+IsaVersion getIsaVersion(const FeatureBitset &Features);
+void initDefaultAMDKernelCodeT(amd_kernel_code_t &Header,
+                               const FeatureBitset &Features);
+
+} // end namespace AMDGPU
+} // end namespace llvm
+
+#endif
diff --git a/lib/Target/AMDGPU/Utils/CMakeLists.txt b/lib/Target/AMDGPU/Utils/CMakeLists.txt
new file mode 100644
index 0000000000000..2c07aeab7dd38
--- /dev/null
+++ b/lib/Target/AMDGPU/Utils/CMakeLists.txt
@@ -0,0 +1,3 @@
+add_llvm_library(LLVMAMDGPUUtils
+  AMDGPUBaseInfo.cpp
+  )
diff --git a/lib/Target/AMDGPU/Utils/LLVMBuild.txt b/lib/Target/AMDGPU/Utils/LLVMBuild.txt
new file mode 100644
index 0000000000000..dec5360e3bc7f
--- /dev/null
+++ b/lib/Target/AMDGPU/Utils/LLVMBuild.txt
@@ -0,0 +1,23 @@
+;===- ./lib/Target/AMDGPU/Utils/LLVMBuild.txt ------------------*- Conf -*--===;
+;
+;                     The LLVM Compiler Infrastructure
+;
+; This file is distributed under the University of Illinois Open Source
+; License. See LICENSE.TXT for details.
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+
+[component_0]
+type = Library
+name = AMDGPUUtils
+parent = AMDGPU
+required_libraries = Support
+add_to_library_groups = AMDGPU
diff --git a/lib/Target/AMDGPU/Utils/Makefile b/lib/Target/AMDGPU/Utils/Makefile
new file mode 100644
index 0000000000000..1019e726d50e4
--- /dev/null
+++ b/lib/Target/AMDGPU/Utils/Makefile
@@ -0,0 +1,16 @@
+##===- lib/Target/AMDGPU/Utils/Makefile --------------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+LEVEL = ../../../..
+LIBRARYNAME = LLVMAMDGPUUtils
+
+# Hack: we need to include 'main' AMDGPU target directory to grab private
+# headers
+CPP.Flags += -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
+
+include $(LEVEL)/Makefile.common