Files
clang-p2996/clang/lib/Basic/Targets/CSKY.cpp
John Brawn 78bf8a0a22 [clang] Don't define predefined macros multiple times
Fix several instances of macros being defined multiple times
in several targets. Most of these are just simple duplication in a
TargetInfo or OSTargetInfo of things already defined in
InitializePredefinedMacros or InitializeStandardPredefinedMacros,
but there are a few that aren't:
 * AArch64 defines a couple of feature macros for armv8.1a that are
   handled generically by getTargetDefines.
 * CSKY needs to take care when CPUName and ArchName are the same.
 * Many os/target combinations result in __ELF__ being defined twice.
   Instead define __ELF__ just once in InitPreprocessor based on
   the Triple, which already knows what the object format is based
   on os and target.

These changes shouldn't change the final result of which macros are
defined, with the exception of the changes to __ELF__ where if you
explicitly specify the object type in the triple then this affects
if __ELF__ is defined, e.g. --target=i686-windows-elf results in it
being defined where it wasn't before, but this is more accurate as an
ELF file is in fact generated.

Differential Revision: https://reviews.llvm.org/D150966
2023-05-24 17:28:41 +01:00

316 lines
7.3 KiB
C++

//===--- CSKY.cpp - Implement CSKY target feature support -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements CSKY TargetInfo objects.
//
//===----------------------------------------------------------------------===//
#include "CSKY.h"
using namespace clang;
using namespace clang::targets;
bool CSKYTargetInfo::isValidCPUName(StringRef Name) const {
return llvm::CSKY::parseCPUArch(Name) != llvm::CSKY::ArchKind::INVALID;
}
bool CSKYTargetInfo::setCPU(const std::string &Name) {
llvm::CSKY::ArchKind archKind = llvm::CSKY::parseCPUArch(Name);
bool isValid = (archKind != llvm::CSKY::ArchKind::INVALID);
if (isValid) {
CPU = Name;
Arch = archKind;
}
return isValid;
}
void CSKYTargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
Builder.defineMacro("__csky__", "2");
Builder.defineMacro("__CSKY__", "2");
Builder.defineMacro("__ckcore__", "2");
Builder.defineMacro("__CKCORE__", "2");
Builder.defineMacro("__CSKYABI__", ABI == "abiv2" ? "2" : "1");
Builder.defineMacro("__cskyabi__", ABI == "abiv2" ? "2" : "1");
StringRef ArchName = "ck810";
StringRef CPUName = "ck810";
if (Arch != llvm::CSKY::ArchKind::INVALID) {
ArchName = llvm::CSKY::getArchName(Arch);
CPUName = CPU;
}
Builder.defineMacro("__" + ArchName.upper() + "__");
Builder.defineMacro("__" + ArchName.lower() + "__");
if (ArchName != CPUName) {
Builder.defineMacro("__" + CPUName.upper() + "__");
Builder.defineMacro("__" + CPUName.lower() + "__");
}
// TODO: Add support for BE if BE was supported later
StringRef endian = "__cskyLE__";
Builder.defineMacro(endian);
Builder.defineMacro(endian.upper());
Builder.defineMacro(endian.lower());
if (DSPV2) {
StringRef dspv2 = "__CSKY_DSPV2__";
Builder.defineMacro(dspv2);
Builder.defineMacro(dspv2.lower());
}
if (VDSPV2) {
StringRef vdspv2 = "__CSKY_VDSPV2__";
Builder.defineMacro(vdspv2);
Builder.defineMacro(vdspv2.lower());
if (HardFloat) {
StringRef vdspv2_f = "__CSKY_VDSPV2_F__";
Builder.defineMacro(vdspv2_f);
Builder.defineMacro(vdspv2_f.lower());
}
}
if (VDSPV1) {
StringRef vdspv1_64 = "__CSKY_VDSP64__";
StringRef vdspv1_128 = "__CSKY_VDSP128__";
Builder.defineMacro(vdspv1_64);
Builder.defineMacro(vdspv1_64.lower());
Builder.defineMacro(vdspv1_128);
Builder.defineMacro(vdspv1_128.lower());
}
if (is3E3R1) {
StringRef is3e3r1 = "__CSKY_3E3R1__";
Builder.defineMacro(is3e3r1);
Builder.defineMacro(is3e3r1.lower());
}
}
bool CSKYTargetInfo::hasFeature(StringRef Feature) const {
return llvm::StringSwitch<bool>(Feature)
.Case("hard-float", HardFloat)
.Case("hard-float-abi", HardFloatABI)
.Case("fpuv2_sf", FPUV2_SF)
.Case("fpuv2_df", FPUV2_DF)
.Case("fpuv3_sf", FPUV3_SF)
.Case("fpuv3_df", FPUV3_DF)
.Case("vdspv2", VDSPV2)
.Case("dspv2", DSPV2)
.Case("vdspv1", VDSPV1)
.Case("3e3r1", is3E3R1)
.Default(false);
}
bool CSKYTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
DiagnosticsEngine &Diags) {
for (const auto &Feature : Features) {
if (Feature == "+hard-float")
HardFloat = true;
if (Feature == "+hard-float-abi")
HardFloatABI = true;
if (Feature == "+fpuv2_sf")
FPUV2_SF = true;
if (Feature == "+fpuv2_df")
FPUV2_DF = true;
if (Feature == "+fpuv3_sf")
FPUV3_SF = true;
if (Feature == "+fpuv3_df")
FPUV3_DF = true;
if (Feature == "+vdspv2")
VDSPV2 = true;
if (Feature == "+dspv2")
DSPV2 = true;
if (Feature == "+vdspv1")
VDSPV1 = true;
if (Feature == "+3e3r1")
is3E3R1 = true;
}
return true;
}
ArrayRef<Builtin::Info> CSKYTargetInfo::getTargetBuiltins() const {
return ArrayRef<Builtin::Info>();
}
ArrayRef<const char *> CSKYTargetInfo::getGCCRegNames() const {
static const char *const GCCRegNames[] = {
// Integer registers
"r0",
"r1",
"r2",
"r3",
"r4",
"r5",
"r6",
"r7",
"r8",
"r9",
"r10",
"r11",
"r12",
"r13",
"r14",
"r15",
"r16",
"r17",
"r18",
"r19",
"r20",
"r21",
"r22",
"r23",
"r24",
"r25",
"r26",
"r27",
"r28",
"r29",
"r30",
"r31",
// Floating point registers
"fr0",
"fr1",
"fr2",
"fr3",
"fr4",
"fr5",
"fr6",
"fr7",
"fr8",
"fr9",
"fr10",
"fr11",
"fr12",
"fr13",
"fr14",
"fr15",
"fr16",
"fr17",
"fr18",
"fr19",
"fr20",
"fr21",
"fr22",
"fr23",
"fr24",
"fr25",
"fr26",
"fr27",
"fr28",
"fr29",
"fr30",
"fr31",
};
return llvm::ArrayRef(GCCRegNames);
}
ArrayRef<TargetInfo::GCCRegAlias> CSKYTargetInfo::getGCCRegAliases() const {
static const TargetInfo::GCCRegAlias GCCRegAliases[] = {
{{"a0"}, "r0"},
{{"a1"}, "r1"},
{{"a2"}, "r2"},
{{"a3"}, "r3"},
{{"l0"}, "r4"},
{{"l1"}, "r5"},
{{"l2"}, "r6"},
{{"l3"}, "r7"},
{{"l4"}, "r8"},
{{"l5"}, "r9"},
{{"l6"}, "r10"},
{{"l7"}, "r11"},
{{"t0"}, "r12"},
{{"t1"}, "r13"},
{{"sp"}, "r14"},
{{"lr"}, "r15"},
{{"l8"}, "r16"},
{{"l9"}, "r17"},
{{"t2"}, "r18"},
{{"t3"}, "r19"},
{{"t4"}, "r20"},
{{"t5"}, "r21"},
{{"t6"}, "r22"},
{{"t7", "fp"}, "r23"},
{{"t8", "top"}, "r24"},
{{"t9", "bsp"}, "r25"},
{{"r26"}, "r26"},
{{"r27"}, "r27"},
{{"gb", "rgb", "rdb"}, "r28"},
{{"tb", "rtb"}, "r29"},
{{"svbr"}, "r30"},
{{"tls"}, "r31"},
{{"vr0"}, "fr0"},
{{"vr1"}, "fr1"},
{{"vr2"}, "fr2"},
{{"vr3"}, "fr3"},
{{"vr4"}, "fr4"},
{{"vr5"}, "fr5"},
{{"vr6"}, "fr6"},
{{"vr7"}, "fr7"},
{{"vr8"}, "fr8"},
{{"vr9"}, "fr9"},
{{"vr10"}, "fr10"},
{{"vr11"}, "fr11"},
{{"vr12"}, "fr12"},
{{"vr13"}, "fr13"},
{{"vr14"}, "fr14"},
{{"vr15"}, "fr15"},
{{"vr16"}, "fr16"},
{{"vr17"}, "fr17"},
{{"vr18"}, "fr18"},
{{"vr19"}, "fr19"},
{{"vr20"}, "fr20"},
{{"vr21"}, "fr21"},
{{"vr22"}, "fr22"},
{{"vr23"}, "fr23"},
{{"vr24"}, "fr24"},
{{"vr25"}, "fr25"},
{{"vr26"}, "fr26"},
{{"vr27"}, "fr27"},
{{"vr28"}, "fr28"},
{{"vr29"}, "fr29"},
{{"vr30"}, "fr30"},
{{"vr31"}, "fr31"},
};
return llvm::ArrayRef(GCCRegAliases);
}
bool CSKYTargetInfo::validateAsmConstraint(
const char *&Name, TargetInfo::ConstraintInfo &Info) const {
switch (*Name) {
default:
return false;
case 'a':
case 'b':
case 'c':
case 'y':
case 'l':
case 'h':
case 'w':
case 'v': // A floating-point and vector register.
case 'z':
Info.setAllowsRegister();
return true;
}
}
unsigned CSKYTargetInfo::getMinGlobalAlign(uint64_t Size) const {
if (Size >= 32)
return 32;
return 0;
}