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MIR Serialization: Serialize the '.cfi_def_cfa' CFI instruction.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243554 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alex Lorenz
2015-07-29 18:57:23 +00:00
parent 0b7483edda
commit dd741a8795
5 changed files with 50 additions and 0 deletions
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1
lib/CodeGen/MIRParser/MILexer.cpp
View File

@@ -147,6 +147,7 @@ static MIToken::TokenKind getIdentifierKind(StringRef Identifier) {
.Case(".cfi_offset", MIToken::kw_cfi_offset)
.Case(".cfi_def_cfa_register", MIToken::kw_cfi_def_cfa_register)
.Case(".cfi_def_cfa_offset", MIToken::kw_cfi_def_cfa_offset)
.Case(".cfi_def_cfa", MIToken::kw_cfi_def_cfa)
.Case("blockaddress", MIToken::kw_blockaddress)
.Case("target-index", MIToken::kw_target_index)
.Default(MIToken::Identifier);

1
lib/CodeGen/MIRParser/MILexer.h
View File

@@ -51,6 +51,7 @@ struct MIToken {
kw_cfi_offset,
kw_cfi_def_cfa_register,
kw_cfi_def_cfa_offset,
kw_cfi_def_cfa,
kw_blockaddress,
kw_target_index,

9
lib/CodeGen/MIRParser/MIParser.cpp
View File

@@ -754,6 +754,14 @@ bool MIParser::parseCFIOperand(MachineOperand &Dest) {
CFIIndex = MMI.addFrameInst(
MCCFIInstruction::createDefCfaOffset(nullptr, -Offset));
break;
case MIToken::kw_cfi_def_cfa:
if (parseCFIRegister(Reg) || expectAndConsume(MIToken::comma) ||
parseCFIOffset(Offset))
return true;
// NB: MCCFIInstruction::createDefCfa negates the offset.
CFIIndex =
MMI.addFrameInst(MCCFIInstruction::createDefCfa(nullptr, Reg, -Offset));
break;
default:
// TODO: Parse the other CFI operands.
llvm_unreachable("The current token should be a cfi operand");
@@ -874,6 +882,7 @@ bool MIParser::parseMachineOperand(MachineOperand &Dest) {
case MIToken::kw_cfi_offset:
case MIToken::kw_cfi_def_cfa_register:
case MIToken::kw_cfi_def_cfa_offset:
case MIToken::kw_cfi_def_cfa:
return parseCFIOperand(Dest);
case MIToken::kw_blockaddress:
return parseBlockAddressOperand(Dest);

7
lib/CodeGen/MIRPrinter.cpp
View File

@@ -586,6 +586,13 @@ void MIPrinter::print(const MCCFIInstruction &CFI,
OS << "<mcsymbol> ";
OS << CFI.getOffset();
break;
case MCCFIInstruction::OpDefCfa:
OS << ".cfi_def_cfa ";
if (CFI.getLabel())
OS << "<mcsymbol> ";
printCFIRegister(CFI.getRegister(), OS, TRI);
OS << ", " << CFI.getOffset();
break;
default:
// TODO: Print the other CFI Operations.
OS << "<unserializable cfi operation>";