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aa77024491
This adds: - LLVM subtarget features to make all the new instructions conditional on, - CPU and FPU names for use on clang's command line, with default FPUs set so that "armv8.1-m.main+fp" and "armv8.1-m.main+fp.dp" will select the right FPU features, - architecture extension names "mve" and "mve.fp", - ABI build attribute support for v8.1-M (a new value for Tag_CPU_arch) and MVE (a new actual tag). Patch mostly by Simon Tatham. Differential Revision: https://reviews.llvm.org/D60698 llvm-svn: 362090
103 lines
4.2 KiB
C++
103 lines
4.2 KiB
C++
//===-- ARMBuildAttrs.cpp - ARM Build Attributes --------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/ARMBuildAttributes.h"
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using namespace llvm;
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namespace {
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const struct {
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ARMBuildAttrs::AttrType Attr;
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StringRef TagName;
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} ARMAttributeTags[] = {
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{ ARMBuildAttrs::File, "Tag_File" },
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{ ARMBuildAttrs::Section, "Tag_Section" },
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{ ARMBuildAttrs::Symbol, "Tag_Symbol" },
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{ ARMBuildAttrs::CPU_raw_name, "Tag_CPU_raw_name" },
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{ ARMBuildAttrs::CPU_name, "Tag_CPU_name" },
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{ ARMBuildAttrs::CPU_arch, "Tag_CPU_arch" },
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{ ARMBuildAttrs::CPU_arch_profile, "Tag_CPU_arch_profile" },
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{ ARMBuildAttrs::ARM_ISA_use, "Tag_ARM_ISA_use" },
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{ ARMBuildAttrs::THUMB_ISA_use, "Tag_THUMB_ISA_use" },
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{ ARMBuildAttrs::FP_arch, "Tag_FP_arch" },
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{ ARMBuildAttrs::WMMX_arch, "Tag_WMMX_arch" },
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{ ARMBuildAttrs::Advanced_SIMD_arch, "Tag_Advanced_SIMD_arch" },
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{ ARMBuildAttrs::MVE_arch, "Tag_MVE_arch" },
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{ ARMBuildAttrs::PCS_config, "Tag_PCS_config" },
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{ ARMBuildAttrs::ABI_PCS_R9_use, "Tag_ABI_PCS_R9_use" },
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{ ARMBuildAttrs::ABI_PCS_RW_data, "Tag_ABI_PCS_RW_data" },
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{ ARMBuildAttrs::ABI_PCS_RO_data, "Tag_ABI_PCS_RO_data" },
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{ ARMBuildAttrs::ABI_PCS_GOT_use, "Tag_ABI_PCS_GOT_use" },
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{ ARMBuildAttrs::ABI_PCS_wchar_t, "Tag_ABI_PCS_wchar_t" },
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{ ARMBuildAttrs::ABI_FP_rounding, "Tag_ABI_FP_rounding" },
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{ ARMBuildAttrs::ABI_FP_denormal, "Tag_ABI_FP_denormal" },
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{ ARMBuildAttrs::ABI_FP_exceptions, "Tag_ABI_FP_exceptions" },
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{ ARMBuildAttrs::ABI_FP_user_exceptions, "Tag_ABI_FP_user_exceptions" },
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{ ARMBuildAttrs::ABI_FP_number_model, "Tag_ABI_FP_number_model" },
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{ ARMBuildAttrs::ABI_align_needed, "Tag_ABI_align_needed" },
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{ ARMBuildAttrs::ABI_align_preserved, "Tag_ABI_align_preserved" },
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{ ARMBuildAttrs::ABI_enum_size, "Tag_ABI_enum_size" },
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{ ARMBuildAttrs::ABI_HardFP_use, "Tag_ABI_HardFP_use" },
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{ ARMBuildAttrs::ABI_VFP_args, "Tag_ABI_VFP_args" },
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{ ARMBuildAttrs::ABI_WMMX_args, "Tag_ABI_WMMX_args" },
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{ ARMBuildAttrs::ABI_optimization_goals, "Tag_ABI_optimization_goals" },
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{ ARMBuildAttrs::ABI_FP_optimization_goals, "Tag_ABI_FP_optimization_goals" },
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{ ARMBuildAttrs::compatibility, "Tag_compatibility" },
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{ ARMBuildAttrs::CPU_unaligned_access, "Tag_CPU_unaligned_access" },
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{ ARMBuildAttrs::FP_HP_extension, "Tag_FP_HP_extension" },
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{ ARMBuildAttrs::ABI_FP_16bit_format, "Tag_ABI_FP_16bit_format" },
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{ ARMBuildAttrs::MPextension_use, "Tag_MPextension_use" },
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{ ARMBuildAttrs::DIV_use, "Tag_DIV_use" },
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{ ARMBuildAttrs::DSP_extension, "Tag_DSP_extension" },
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{ ARMBuildAttrs::nodefaults, "Tag_nodefaults" },
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{ ARMBuildAttrs::also_compatible_with, "Tag_also_compatible_with" },
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{ ARMBuildAttrs::T2EE_use, "Tag_T2EE_use" },
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{ ARMBuildAttrs::conformance, "Tag_conformance" },
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{ ARMBuildAttrs::Virtualization_use, "Tag_Virtualization_use" },
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// Legacy Names
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{ ARMBuildAttrs::FP_arch, "Tag_VFP_arch" },
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{ ARMBuildAttrs::FP_HP_extension, "Tag_VFP_HP_extension" },
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{ ARMBuildAttrs::ABI_align_needed, "Tag_ABI_align8_needed" },
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{ ARMBuildAttrs::ABI_align_preserved, "Tag_ABI_align8_preserved" },
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};
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}
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namespace llvm {
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namespace ARMBuildAttrs {
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StringRef AttrTypeAsString(unsigned Attr, bool HasTagPrefix) {
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return AttrTypeAsString(static_cast<AttrType>(Attr), HasTagPrefix);
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}
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StringRef AttrTypeAsString(AttrType Attr, bool HasTagPrefix) {
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for (unsigned TI = 0, TE = sizeof(ARMAttributeTags) / sizeof(*ARMAttributeTags);
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TI != TE; ++TI)
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if (ARMAttributeTags[TI].Attr == Attr) {
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auto TagName = ARMAttributeTags[TI].TagName;
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return HasTagPrefix ? TagName : TagName.drop_front(4);
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}
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return "";
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}
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int AttrTypeFromString(StringRef Tag) {
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bool HasTagPrefix = Tag.startswith("Tag_");
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for (unsigned TI = 0,
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TE = sizeof(ARMAttributeTags) / sizeof(*ARMAttributeTags);
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TI != TE; ++TI) {
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auto TagName = ARMAttributeTags[TI].TagName;
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if (TagName.drop_front(HasTagPrefix ? 0 : 4) == Tag) {
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return ARMAttributeTags[TI].Attr;
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}
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}
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return -1;
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}
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}
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}
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