bcc1aba6c4
- This patch introduces a different assembler dialect ("hlasm") for z/OS.
The default dialect has now been given the "att" dialect name. For this
appropriate changes have been added to SystemZ.td.
- This patch also makes a few changes to SystemZInstrFormats.td which
restrict a few condition code mnemonics to just the "att" dialect
variant (he, le, lh, nhe, nle, nlh). These extended condition code
mnemonics are not available in HLASM.
- A new private function has been introduced in SystemZAsmParser.cpp to
return the assembler dialect set in SystemZMCAsmInfo.cpp. The reason we
couldn't/haven't explicitly queried the overriden getAssemblerDialect
function from AsmParser is outlined in this thread here. This returned
dialect is directly passed onto the relevant matcher functions which taken
in a variantID, so that the matcher functions can appropriately choose an
instruction based on the variant.
Reviewed By: uweigand
Differential Revision: https://reviews.llvm.org/D94250
94 lines
3.2 KiB
TableGen
94 lines
3.2 KiB
TableGen
//===-- SystemZ.td - Describe the SystemZ target machine -----*- tblgen -*-===//
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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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//===----------------------------------------------------------------------===//
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// Target-independent interfaces which we are implementing
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//===----------------------------------------------------------------------===//
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include "llvm/Target/Target.td"
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//===----------------------------------------------------------------------===//
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// SystemZ subtarget features
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//===----------------------------------------------------------------------===//
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include "SystemZFeatures.td"
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//===----------------------------------------------------------------------===//
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// SystemZ subtarget scheduling models
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//===----------------------------------------------------------------------===//
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include "SystemZSchedule.td"
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//===----------------------------------------------------------------------===//
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// SystemZ supported processors
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//===----------------------------------------------------------------------===//
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include "SystemZProcessors.td"
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//===----------------------------------------------------------------------===//
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// Register file description
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//===----------------------------------------------------------------------===//
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include "SystemZRegisterInfo.td"
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//===----------------------------------------------------------------------===//
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// Calling convention description
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//===----------------------------------------------------------------------===//
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include "SystemZCallingConv.td"
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//===----------------------------------------------------------------------===//
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// Instruction descriptions
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//===----------------------------------------------------------------------===//
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include "SystemZOperators.td"
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include "SystemZOperands.td"
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include "SystemZPatterns.td"
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include "SystemZInstrFormats.td"
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include "SystemZInstrInfo.td"
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include "SystemZInstrVector.td"
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include "SystemZInstrFP.td"
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include "SystemZInstrHFP.td"
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include "SystemZInstrDFP.td"
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include "SystemZInstrSystem.td"
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def SystemZInstrInfo : InstrInfo { let guessInstructionProperties = 0; }
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//===----------------------------------------------------------------------===//
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// Assembly parser
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//===----------------------------------------------------------------------===//
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def SystemZAsmParser : AsmParser {
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let ShouldEmitMatchRegisterName = 0;
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}
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def ATTAsmParserVariant : AsmParserVariant {
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int Variant = 0;
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// Variant name.
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string Name = "att";
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}
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def HLASMAsmParserVariant : AsmParserVariant {
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int Variant = 1;
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// Variant name.
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string Name = "hlasm";
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}
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//===----------------------------------------------------------------------===//
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// Top-level target declaration
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//===----------------------------------------------------------------------===//
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def SystemZ : Target {
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let InstructionSet = SystemZInstrInfo;
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let AssemblyParsers = [SystemZAsmParser];
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let AssemblyParserVariants = [ATTAsmParserVariant, HLASMAsmParserVariant];
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let AllowRegisterRenaming = 1;
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}
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