| Alex Bradbury | 71f4545 | 2018-01-11 13:36:56 +0000 | [diff] [blame] | 1 | //===--- RISCV.cpp - Implement RISCV target feature support ---------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements RISCV TargetInfo objects. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "RISCV.h" |
| 15 | #include "clang/Basic/MacroBuilder.h" |
| 16 | #include "llvm/ADT/StringSwitch.h" |
| 17 | |
| 18 | using namespace clang; |
| 19 | using namespace clang::targets; |
| 20 | |
| 21 | ArrayRef<const char *> RISCVTargetInfo::getGCCRegNames() const { |
| 22 | static const char *const GCCRegNames[] = { |
| 23 | "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", |
| 24 | "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", |
| 25 | "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", |
| 26 | "x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31"}; |
| 27 | return llvm::makeArrayRef(GCCRegNames); |
| 28 | } |
| 29 | |
| 30 | ArrayRef<TargetInfo::GCCRegAlias> RISCVTargetInfo::getGCCRegAliases() const { |
| 31 | static const TargetInfo::GCCRegAlias GCCRegAliases[] = { |
| 32 | {{"zero"}, "x0"}, {{"ra"}, "x1"}, {{"sp"}, "x2"}, {{"gp"}, "x3"}, |
| 33 | {{"tp"}, "x4"}, {{"t0"}, "x5"}, {{"t1"}, "x6"}, {{"t2"}, "x7"}, |
| 34 | {{"s0"}, "x8"}, {{"s1"}, "x9"}, {{"a0"}, "x10"}, {{"a1"}, "x11"}, |
| 35 | {{"a2"}, "x12"}, {{"a3"}, "x13"}, {{"a4"}, "x15"}, {{"a5"}, "x15"}, |
| 36 | {{"a6"}, "x16"}, {{"a7"}, "x17"}, {{"s2"}, "x18"}, {{"s3"}, "x19"}, |
| 37 | {{"s4"}, "x20"}, {{"s5"}, "x21"}, {{"s6"}, "x22"}, {{"s7"}, "x23"}, |
| 38 | {{"s8"}, "x24"}, {{"s9"}, "x25"}, {{"s10"}, "x26"}, {{"s11"}, "x27"}, |
| 39 | {{"t3"}, "x28"}, {{"t4"}, "x29"}, {{"t5"}, "x30"}, {{"t6"}, "x31"}}; |
| 40 | return llvm::makeArrayRef(GCCRegAliases); |
| 41 | } |
| 42 | |
| 43 | void RISCVTargetInfo::getTargetDefines(const LangOptions &Opts, |
| 44 | MacroBuilder &Builder) const { |
| 45 | Builder.defineMacro("__ELF__"); |
| 46 | Builder.defineMacro("__riscv"); |
| 47 | bool Is64Bit = getTriple().getArch() == llvm::Triple::riscv64; |
| 48 | Builder.defineMacro("__riscv_xlen", Is64Bit ? "64" : "32"); |
| 49 | // TODO: modify when more code models and ABIs are supported. |
| 50 | Builder.defineMacro("__riscv_cmodel_medlow"); |
| 51 | Builder.defineMacro("__riscv_float_abi_soft"); |
| 52 | } |