[mips] [IAS] Add support for the .module softfloat/hardfloat directives.
These directives are used to set the default value of the SoftFloat feature.
They have the same effect as setting -m{soft, hard}-float from the command line.
Differential Revision: http://reviews.llvm.org/D9073
llvm-svn: 241066
diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
index a503734..f14156d 100644
--- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -4703,6 +4703,8 @@
/// ::= .module oddspreg
/// ::= .module nooddspreg
/// ::= .module fp=value
+/// ::= .module softfloat
+/// ::= .module hardfloat
bool MipsAsmParser::parseDirectiveModule() {
MCAsmParser &Parser = getParser();
MCAsmLexer &Lexer = getLexer();
@@ -4765,6 +4767,44 @@
return false; // parseDirectiveModule has finished successfully.
} else if (Option == "fp") {
return parseDirectiveModuleFP();
+ } else if (Option == "softfloat") {
+ setModuleFeatureBits(Mips::FeatureSoftFloat, "soft-float");
+
+ // Synchronize the ABI Flags information with the FeatureBits information we
+ // updated above.
+ getTargetStreamer().updateABIInfo(*this);
+
+ // If printing assembly, use the recently updated ABI Flags information.
+ // If generating ELF, don't do anything (the .MIPS.abiflags section gets
+ // emitted later).
+ getTargetStreamer().emitDirectiveModuleSoftFloat();
+
+ // If this is not the end of the statement, report an error.
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ reportParseError("unexpected token, expected end of statement");
+ return false;
+ }
+
+ return false; // parseDirectiveModule has finished successfully.
+ } else if (Option == "hardfloat") {
+ clearModuleFeatureBits(Mips::FeatureSoftFloat, "soft-float");
+
+ // Synchronize the ABI Flags information with the FeatureBits information we
+ // updated above.
+ getTargetStreamer().updateABIInfo(*this);
+
+ // If printing assembly, use the recently updated ABI Flags information.
+ // If generating ELF, don't do anything (the .MIPS.abiflags section gets
+ // emitted later).
+ getTargetStreamer().emitDirectiveModuleHardFloat();
+
+ // If this is not the end of the statement, report an error.
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ reportParseError("unexpected token, expected end of statement");
+ return false;
+ }
+
+ return false; // parseDirectiveModule has finished successfully.
} else {
return Error(L, "'" + Twine(Option) + "' is not a valid .module option.");
}
diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index a560ce6..e4da2df 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -99,6 +99,8 @@
if (!ABIFlagsSection.OddSPReg && !ABIFlagsSection.Is32BitABI)
report_fatal_error("+nooddspreg is only valid for O32");
}
+void MipsTargetStreamer::emitDirectiveModuleSoftFloat() {}
+void MipsTargetStreamer::emitDirectiveModuleHardFloat() {}
void MipsTargetStreamer::emitDirectiveSetFp(
MipsABIFlagsSection::FpABIKind Value) {
forbidModuleDirective();
@@ -404,6 +406,14 @@
OS << "\t.set\tnooddspreg\n";
}
+void MipsTargetAsmStreamer::emitDirectiveModuleSoftFloat() {
+ OS << "\t.module\tsoftfloat\n";
+}
+
+void MipsTargetAsmStreamer::emitDirectiveModuleHardFloat() {
+ OS << "\t.module\thardfloat\n";
+}
+
// This part is for ELF object output.
MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
const MCSubtargetInfo &STI)
diff --git a/llvm/lib/Target/Mips/MipsTargetStreamer.h b/llvm/lib/Target/Mips/MipsTargetStreamer.h
index 54460fb..6ce1be7 100644
--- a/llvm/lib/Target/Mips/MipsTargetStreamer.h
+++ b/llvm/lib/Target/Mips/MipsTargetStreamer.h
@@ -83,6 +83,8 @@
// FP abiflags directives
virtual void emitDirectiveModuleFP();
virtual void emitDirectiveModuleOddSPReg();
+ virtual void emitDirectiveModuleSoftFloat();
+ virtual void emitDirectiveModuleHardFloat();
virtual void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value);
virtual void emitDirectiveSetOddSPReg();
virtual void emitDirectiveSetNoOddSPReg();
@@ -192,6 +194,8 @@
// FP abiflags directives
void emitDirectiveModuleFP() override;
void emitDirectiveModuleOddSPReg() override;
+ void emitDirectiveModuleSoftFloat() override;
+ void emitDirectiveModuleHardFloat() override;
void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value) override;
void emitDirectiveSetOddSPReg() override;
void emitDirectiveSetNoOddSPReg() override;