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//===--- SystemZ.cpp - Implement SystemZ 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 SystemZ TargetInfo objects.
//
//===----------------------------------------------------------------------===//
#include "SystemZ.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/MacroBuilder.h"
#include "clang/Basic/TargetBuiltins.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSwitch.h"
using namespace clang;
using namespace clang::targets;
static constexpr int NumBuiltins =
clang::SystemZ::LastTSBuiltin - Builtin::FirstTSBuiltin;
static constexpr llvm::StringTable BuiltinStrings =
CLANG_BUILTIN_STR_TABLE_START
#define BUILTIN CLANG_BUILTIN_STR_TABLE
#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_STR_TABLE
#include "clang/Basic/BuiltinsSystemZ.def"
;
static constexpr auto BuiltinInfos = Builtin::MakeInfos<NumBuiltins>({
#define BUILTIN CLANG_BUILTIN_ENTRY
#define TARGET_BUILTIN CLANG_TARGET_BUILTIN_ENTRY
#include "clang/Basic/BuiltinsSystemZ.def"
});
const char *const SystemZTargetInfo::GCCRegNames[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7",
"f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15",
/*ap*/"", "cc", /*fp*/"", /*rp*/"", "a0", "a1",
"v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23",
"v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31"
};
const TargetInfo::AddlRegName GCCAddlRegNames[] = {
{{"v0"}, 16}, {{"v2"}, 17}, {{"v4"}, 18}, {{"v6"}, 19},
{{"v1"}, 20}, {{"v3"}, 21}, {{"v5"}, 22}, {{"v7"}, 23},
{{"v8"}, 24}, {{"v10"}, 25}, {{"v12"}, 26}, {{"v14"}, 27},
{{"v9"}, 28}, {{"v11"}, 29}, {{"v13"}, 30}, {{"v15"}, 31}
};
ArrayRef<const char *> SystemZTargetInfo::getGCCRegNames() const {
return llvm::ArrayRef(GCCRegNames);
}
ArrayRef<TargetInfo::AddlRegName> SystemZTargetInfo::getGCCAddlRegNames() const {
return llvm::ArrayRef(GCCAddlRegNames);
}
bool SystemZTargetInfo::validateAsmConstraint(
const char *&Name, TargetInfo::ConstraintInfo &Info) const {
switch (*Name) {
default:
return false;
case 'Z':
switch (Name[1]) {
default:
return false;
case 'Q': // Address with base and unsigned 12-bit displacement
case 'R': // Likewise, plus an index
case 'S': // Address with base and signed 20-bit displacement
case 'T': // Likewise, plus an index
break;
}
[[fallthrough]];
case 'a': // Address register
case 'd': // Data register (equivalent to 'r')
case 'f': // Floating-point register
case 'v': // Vector register
Info.setAllowsRegister();
return true;
case 'I': // Unsigned 8-bit constant
case 'J': // Unsigned 12-bit constant
case 'K': // Signed 16-bit constant
case 'L': // Signed 20-bit displacement (on all targets we support)
case 'M': // 0x7fffffff
return true;
case 'Q': // Memory with base and unsigned 12-bit displacement
case 'R': // Likewise, plus an index
case 'S': // Memory with base and signed 20-bit displacement
case 'T': // Likewise, plus an index
Info.setAllowsMemory();
return true;
}
}
struct ISANameRevision {
llvm::StringLiteral Name;
int ISARevisionID;
};
static constexpr ISANameRevision ISARevisions[] = {
{{"arch8"}, 8}, {{"z10"}, 8},
{{"arch9"}, 9}, {{"z196"}, 9},
{{"arch10"}, 10}, {{"zEC12"}, 10},
{{"arch11"}, 11}, {{"z13"}, 11},
{{"arch12"}, 12}, {{"z14"}, 12},
{{"arch13"}, 13}, {{"z15"}, 13},
{{"arch14"}, 14}, {{"z16"}, 14},
{{"arch15"}, 15}, {{"z17"}, 15},
};
int SystemZTargetInfo::getISARevision(StringRef Name) const {
const auto Rev =
llvm::find_if(ISARevisions, [Name](const ISANameRevision &CR) {
return CR.Name == Name;
});
if (Rev == std::end(ISARevisions))
return -1;
return Rev->ISARevisionID;
}
void SystemZTargetInfo::fillValidCPUList(
SmallVectorImpl<StringRef> &Values) const {
for (const ISANameRevision &Rev : ISARevisions)
Values.push_back(Rev.Name);
}
bool SystemZTargetInfo::hasFeature(StringRef Feature) const {
return llvm::StringSwitch<bool>(Feature)
.Case("systemz", true)
.Case("arch8", ISARevision >= 8)
.Case("arch9", ISARevision >= 9)
.Case("arch10", ISARevision >= 10)
.Case("arch11", ISARevision >= 11)
.Case("arch12", ISARevision >= 12)
.Case("arch13", ISARevision >= 13)
.Case("arch14", ISARevision >= 14)
.Case("arch15", ISARevision >= 15)
.Case("htm", HasTransactionalExecution)
.Case("vx", HasVector)
.Default(false);
}
unsigned SystemZTargetInfo::getMinGlobalAlign(uint64_t Size,
bool HasNonWeakDef) const {
// Don't enforce the minimum alignment on an external or weak symbol if
// -munaligned-symbols is passed.
if (UnalignedSymbols && !HasNonWeakDef)
return 0;
return MinGlobalAlign;
}
void SystemZTargetInfo::getTargetDefines(const LangOptions &Opts,
MacroBuilder &Builder) const {
Builder.defineMacro("__s390__");
Builder.defineMacro("__s390x__");
Builder.defineMacro("__zarch__");
Builder.defineMacro("__LONG_DOUBLE_128__");
Builder.defineMacro("__ARCH__", Twine(ISARevision));
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
if (HasTransactionalExecution)
Builder.defineMacro("__HTM__");
if (HasVector)
Builder.defineMacro("__VX__");
if (Opts.ZVector)
Builder.defineMacro("__VEC__", "10305");
/* Set __TARGET_LIB__ only if a value was given. If no value was given */
/* we rely on the LE headers to define __TARGET_LIB__. */
if (!getTriple().getOSVersion().empty()) {
llvm::VersionTuple V = getTriple().getOSVersion();
// Create string with form: 0xPVRRMMMM, where P=4
std::string Str("0x");
unsigned int Librel = 0x40000000;
Librel |= V.getMajor() << 24;
Librel |= V.getMinor().value_or(1) << 16;
Librel |= V.getSubminor().value_or(0);
Str += llvm::utohexstr(Librel);
Builder.defineMacro("__TARGET_LIB__", Str.c_str());
}
}
llvm::SmallVector<Builtin::InfosShard>
SystemZTargetInfo::getTargetBuiltins() const {
return {{&BuiltinStrings, BuiltinInfos}};
}
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