MIR Serialization: Serialize the floating point immediate machine operands.
Reviewers: Duncan P. N. Exon Smith
llvm-svn: 243780
diff --git a/llvm/lib/CodeGen/MIRParser/MIParser.cpp b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
index c71eeb9..da2a013 100644
--- a/llvm/lib/CodeGen/MIRParser/MIParser.cpp
+++ b/llvm/lib/CodeGen/MIRParser/MIParser.cpp
@@ -14,6 +14,7 @@
#include "MIParser.h"
#include "MILexer.h"
#include "llvm/ADT/StringMap.h"
+#include "llvm/AsmParser/Parser.h"
#include "llvm/AsmParser/SlotMapping.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
@@ -113,6 +114,7 @@
bool parseSubRegisterIndex(unsigned &SubReg);
bool parseRegisterOperand(MachineOperand &Dest, bool IsDef = false);
bool parseImmediateOperand(MachineOperand &Dest);
+ bool parseFPImmediateOperand(MachineOperand &Dest);
bool parseMBBReference(MachineBasicBlock *&MBB);
bool parseMBBOperand(MachineOperand &Dest);
bool parseStackObjectOperand(MachineOperand &Dest);
@@ -528,6 +530,22 @@
return false;
}
+bool MIParser::parseFPImmediateOperand(MachineOperand &Dest) {
+ auto Loc = Token.location();
+ lex();
+ if (Token.isNot(MIToken::FloatingPointLiteral))
+ return error("expected a floating point literal");
+ auto Source = StringRef(Loc, Token.stringValue().end() - Loc).str();
+ lex();
+ SMDiagnostic Err;
+ const Constant *C =
+ parseConstantValue(Source.c_str(), Err, *MF.getFunction()->getParent());
+ if (!C)
+ return error(Loc + Err.getColumnNo(), Err.getMessage());
+ Dest = MachineOperand::CreateFPImm(cast<ConstantFP>(C));
+ return false;
+}
+
bool MIParser::getUnsigned(unsigned &Result) {
assert(Token.hasIntegerValue() && "Expected a token with an integer value");
const uint64_t Limit = uint64_t(std::numeric_limits<unsigned>::max()) + 1;
@@ -860,6 +878,13 @@
return parseRegisterOperand(Dest);
case MIToken::IntegerLiteral:
return parseImmediateOperand(Dest);
+ case MIToken::kw_half:
+ case MIToken::kw_float:
+ case MIToken::kw_double:
+ case MIToken::kw_x86_fp80:
+ case MIToken::kw_fp128:
+ case MIToken::kw_ppc_fp128:
+ return parseFPImmediateOperand(Dest);
case MIToken::MachineBasicBlock:
return parseMBBOperand(Dest);
case MIToken::StackObject: