[llvm] r206396 - [mips] Add initial support for NaN2008 in the back-end.
Matheus Almeida
matheus.almeida at imgtec.com
Wed Apr 16 08:48:55 PDT 2014
Author: matheusalmeida
Date: Wed Apr 16 10:48:55 2014
New Revision: 206396
URL: http://llvm.org/viewvc/llvm-project?rev=206396&view=rev
Log:
[mips] Add initial support for NaN2008 in the back-end.
This is so that EF_MIPS_NAN2008 is set if we are using IEEE 754-2008
NaN encoding (-mnan=2008). This patch also adds support for parsing
'.nan legacy' and '.nan 2008' assembly directives. The handling of
these directives should match GAS' behaviour i.e., the last directive
in use sets the ELF header bit (EF_MIPS_NAN2008).
Differential Revision: http://reviews.llvm.org/D3346
Added:
llvm/trunk/test/CodeGen/Mips/start-asm-file.ll
llvm/trunk/test/MC/Mips/elf_eflags_nan2008.s
llvm/trunk/test/MC/Mips/elf_eflags_nanlegacy.s
Modified:
llvm/trunk/include/llvm/Support/ELF.h
llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
llvm/trunk/lib/Target/Mips/Mips.td
llvm/trunk/lib/Target/Mips/MipsAsmPrinter.cpp
llvm/trunk/lib/Target/Mips/MipsSubtarget.cpp
llvm/trunk/lib/Target/Mips/MipsSubtarget.h
llvm/trunk/lib/Target/Mips/MipsTargetStreamer.h
llvm/trunk/test/MC/Mips/elf_eflags.s
Modified: llvm/trunk/include/llvm/Support/ELF.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/ELF.h?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/ELF.h (original)
+++ llvm/trunk/include/llvm/Support/ELF.h Wed Apr 16 10:48:55 2014
@@ -807,6 +807,7 @@ enum : unsigned {
EF_MIPS_CPIC = 0x00000004, // Call object with Position independent code
EF_MIPS_ABI2 = 0x00000020,
EF_MIPS_32BITMODE = 0x00000100,
+ EF_MIPS_NAN2008 = 0x00000400, // Uses IEE 754-2008 NaN encoding
EF_MIPS_ABI_O32 = 0x00001000, // This file follows the first MIPS 32 bit ABI
//ARCH_ASE
Modified: llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp (original)
+++ llvm/trunk/lib/Target/Mips/AsmParser/MipsAsmParser.cpp Wed Apr 16 10:48:55 2014
@@ -144,6 +144,7 @@ class MipsAsmParser : public MCTargetAsm
bool isEvaluated(const MCExpr *Expr);
bool parseSetFeature(uint64_t Feature);
bool parseDirectiveCPSetup();
+ bool parseDirectiveNaN();
bool parseDirectiveSet();
bool parseDirectiveOption();
@@ -2383,6 +2384,26 @@ bool MipsAsmParser::parseDirectiveCPSetu
return false;
}
+bool MipsAsmParser::parseDirectiveNaN() {
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ const AsmToken &Tok = Parser.getTok();
+
+ if (Tok.getString() == "2008") {
+ Parser.Lex();
+ getTargetStreamer().emitDirectiveNaN2008();
+ return false;
+ } else if (Tok.getString() == "legacy") {
+ Parser.Lex();
+ getTargetStreamer().emitDirectiveNaNLegacy();
+ return false;
+ }
+ }
+ // If we don't recognize the option passed to the .nan
+ // directive (e.g. no option or unknown option), emit an error.
+ reportParseError("invalid option in .nan directive");
+ return false;
+}
+
bool MipsAsmParser::parseDirectiveSet() {
// Get the next token.
@@ -2566,6 +2587,9 @@ bool MipsAsmParser::ParseDirective(AsmTo
return false;
}
+ if (IDVal == ".nan")
+ return parseDirectiveNaN();
+
if (IDVal == ".gpword") {
parseDirectiveGpWord();
return false;
Modified: llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp Wed Apr 16 10:48:55 2014
@@ -85,6 +85,13 @@ void MipsTargetAsmStreamer::emitDirectiv
}
void MipsTargetAsmStreamer::emitDirectiveAbiCalls() { OS << "\t.abicalls\n"; }
+
+void MipsTargetAsmStreamer::emitDirectiveNaN2008() { OS << "\t.nan\t2008\n"; }
+
+void MipsTargetAsmStreamer::emitDirectiveNaNLegacy() {
+ OS << "\t.nan\tlegacy\n";
+}
+
void MipsTargetAsmStreamer::emitDirectiveOptionPic0() {
OS << "\t.option\tpic0\n";
}
@@ -180,6 +187,10 @@ MipsTargetELFStreamer::MipsTargetELFStre
EFlags |= ELF::EF_MIPS_ABI_O32;
}
+ // Other options.
+ if (Features & Mips::FeatureNaN2008)
+ EFlags |= ELF::EF_MIPS_NAN2008;
+
MCA.setELFHeaderEFlags(EFlags);
}
@@ -325,6 +336,21 @@ void MipsTargetELFStreamer::emitDirectiv
Flags |= ELF::EF_MIPS_CPIC | ELF::EF_MIPS_PIC;
MCA.setELFHeaderEFlags(Flags);
}
+
+void MipsTargetELFStreamer::emitDirectiveNaN2008() {
+ MCAssembler &MCA = getStreamer().getAssembler();
+ unsigned Flags = MCA.getELFHeaderEFlags();
+ Flags |= ELF::EF_MIPS_NAN2008;
+ MCA.setELFHeaderEFlags(Flags);
+}
+
+void MipsTargetELFStreamer::emitDirectiveNaNLegacy() {
+ MCAssembler &MCA = getStreamer().getAssembler();
+ unsigned Flags = MCA.getELFHeaderEFlags();
+ Flags &= ~ELF::EF_MIPS_NAN2008;
+ MCA.setELFHeaderEFlags(Flags);
+}
+
void MipsTargetELFStreamer::emitDirectiveOptionPic0() {
MCAssembler &MCA = getStreamer().getAssembler();
unsigned Flags = MCA.getELFHeaderEFlags();
Modified: llvm/trunk/lib/Target/Mips/Mips.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/Mips.td?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/Mips.td (original)
+++ llvm/trunk/lib/Target/Mips/Mips.td Wed Apr 16 10:48:55 2014
@@ -34,6 +34,8 @@ def FeatureGP64Bit : SubtargetFeatur
"General Purpose Registers are 64-bit wide.">;
def FeatureFP64Bit : SubtargetFeature<"fp64", "IsFP64bit", "true",
"Support 64-bit FP registers.">;
+def FeatureNaN2008 : SubtargetFeature<"nan2008", "IsNaN2008bit", "true",
+ "IEEE 754-2008 NaN encoding.">;
def FeatureSingleFloat : SubtargetFeature<"single-float", "IsSingleFloat",
"true", "Only supports single precision float">;
def FeatureO32 : SubtargetFeature<"o32", "MipsABI", "O32",
Modified: llvm/trunk/lib/Target/Mips/MipsAsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsAsmPrinter.cpp?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MipsAsmPrinter.cpp Wed Apr 16 10:48:55 2014
@@ -637,6 +637,12 @@ void MipsAsmPrinter::EmitStartOfAsmFile(
OutStreamer.SwitchSection(OutContext.getELFSection(
SectionName, ELF::SHT_PROGBITS, 0, SectionKind::getDataRel()));
+ // NaN: At the moment we only support:
+ // 1. .nan legacy (default)
+ // 2. .nan 2008
+ Subtarget->isNaN2008() ? getTargetStreamer().emitDirectiveNaN2008()
+ : getTargetStreamer().emitDirectiveNaNLegacy();
+
// TODO: handle O64 ABI
if (Subtarget->isABI_EABI()) {
Modified: llvm/trunk/lib/Target/Mips/MipsSubtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsSubtarget.cpp?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsSubtarget.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MipsSubtarget.cpp Wed Apr 16 10:48:55 2014
@@ -77,17 +77,16 @@ void MipsSubtarget::anchor() { }
MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS, bool little,
- Reloc::Model _RM, MipsTargetMachine *_TM) :
- MipsGenSubtargetInfo(TT, CPU, FS),
- MipsArchVersion(Mips32), MipsABI(UnknownABI), IsLittle(little),
- IsSingleFloat(false), IsFP64bit(false), IsGP64bit(false), HasVFPU(false),
- HasCnMips(false), IsLinux(true), HasSEInReg(false), HasCondMov(false),
- HasSwap(false), HasBitCount(false), HasFPIdx(false),
- InMips16Mode(false), InMips16HardFloat(Mips16HardFloat),
- InMicroMipsMode(false), HasDSP(false), HasDSPR2(false),
- AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16), HasMSA(false),
- RM(_RM), OverrideMode(NoOverride), TM(_TM), TargetTriple(TT)
-{
+ Reloc::Model _RM, MipsTargetMachine *_TM)
+ : MipsGenSubtargetInfo(TT, CPU, FS), MipsArchVersion(Mips32),
+ MipsABI(UnknownABI), IsLittle(little), IsSingleFloat(false),
+ IsFP64bit(false), IsNaN2008bit(false), IsGP64bit(false), HasVFPU(false),
+ HasCnMips(false), IsLinux(true), HasSEInReg(false), HasCondMov(false),
+ HasSwap(false), HasBitCount(false), HasFPIdx(false), InMips16Mode(false),
+ InMips16HardFloat(Mips16HardFloat), InMicroMipsMode(false), HasDSP(false),
+ HasDSPR2(false), AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16),
+ HasMSA(false), RM(_RM), OverrideMode(NoOverride), TM(_TM),
+ TargetTriple(TT) {
std::string CPUName = CPU;
CPUName = selectMipsCPU(TT, CPUName);
Modified: llvm/trunk/lib/Target/Mips/MipsSubtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsSubtarget.h?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsSubtarget.h (original)
+++ llvm/trunk/lib/Target/Mips/MipsSubtarget.h Wed Apr 16 10:48:55 2014
@@ -56,6 +56,9 @@ protected:
// IsFP64bit - The target processor has 64-bit floating point registers.
bool IsFP64bit;
+ // IsNan2008 - IEEE 754-2008 NaN encoding.
+ bool IsNaN2008bit;
+
// IsFP64bit - General-purpose registers are 64 bits wide
bool IsGP64bit;
@@ -158,6 +161,7 @@ public:
bool isLittle() const { return IsLittle; }
bool isFP64bit() const { return IsFP64bit; }
+ bool isNaN2008() const { return IsNaN2008bit; }
bool isNotFP64bit() const { return !IsFP64bit; }
bool isGP64bit() const { return IsGP64bit; }
bool isGP32bit() const { return !IsGP64bit; }
Modified: llvm/trunk/lib/Target/Mips/MipsTargetStreamer.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsTargetStreamer.h?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsTargetStreamer.h (original)
+++ llvm/trunk/lib/Target/Mips/MipsTargetStreamer.h Wed Apr 16 10:48:55 2014
@@ -34,6 +34,8 @@ public:
virtual void emitDirectiveEnt(const MCSymbol &Symbol) = 0;
virtual void emitDirectiveAbiCalls() = 0;
+ virtual void emitDirectiveNaN2008() = 0;
+ virtual void emitDirectiveNaNLegacy() = 0;
virtual void emitDirectiveOptionPic0() = 0;
virtual void emitDirectiveOptionPic2() = 0;
virtual void emitFrame(unsigned StackReg, unsigned StackSize,
@@ -68,6 +70,8 @@ public:
virtual void emitDirectiveEnt(const MCSymbol &Symbol);
virtual void emitDirectiveAbiCalls();
+ virtual void emitDirectiveNaN2008();
+ virtual void emitDirectiveNaNLegacy();
virtual void emitDirectiveOptionPic0();
virtual void emitDirectiveOptionPic2();
virtual void emitFrame(unsigned StackReg, unsigned StackSize,
@@ -111,6 +115,8 @@ public:
virtual void emitDirectiveEnt(const MCSymbol &Symbol);
virtual void emitDirectiveAbiCalls();
+ virtual void emitDirectiveNaN2008();
+ virtual void emitDirectiveNaNLegacy();
virtual void emitDirectiveOptionPic0();
virtual void emitDirectiveOptionPic2();
virtual void emitFrame(unsigned StackReg, unsigned StackSize,
Added: llvm/trunk/test/CodeGen/Mips/start-asm-file.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/Mips/start-asm-file.ll?rev=206396&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/Mips/start-asm-file.ll (added)
+++ llvm/trunk/test/CodeGen/Mips/start-asm-file.ll Wed Apr 16 10:48:55 2014
@@ -0,0 +1,91 @@
+; Check the emission of directives at the start of an asm file.
+; This test is XFAILED until we fix the emission of '.option pic0' on
+; N32. At the moment we check if subtarget is Mips64 when we should be
+; checking the Subtarget's ABI.
+
+; ### O32 ABI ###
+; RUN: llc -filetype=asm -mtriple mips-unknown-linux -mcpu=mips32 \
+; RUN: -relocation-model=static %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-STATIC-O32 -check-prefix=CHECK-STATIC-O32-NLEGACY %s
+
+; RUN: llc -filetype=asm -mtriple mips-unknown-linux -mcpu=mips32 \
+; RUN: -relocation-model=pic %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-PIC-O32 -check-prefix=CHECK-PIC-O32-NLEGACY %s
+
+; RUN: llc -filetype=asm -mtriple mips-unknown-linux -mcpu=mips32 \
+; RUN: -relocation-model=static -mattr=+nan2008 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-STATIC-O32 -check-prefix=CHECK-STATIC-O32-N2008 %s
+
+; RUN: llc -filetype=asm -mtriple mips-unknown-linux -mcpu=mips32 \
+; RUN: -relocation-model=pic -mattr=+nan2008 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-PIC-O32 -check-prefix=CHECK-PIC-O32-N2008 %s
+
+; ### N32 ABI ###
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=static -mattr=-n64,+n32 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-STATIC-N32 -check-prefix=CHECK-STATIC-N32-NLEGACY %s
+
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=pic -mattr=-n64,+n32 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-PIC-N32 -check-prefix=CHECK-PIC-N32-NLEGACY %s
+
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=static -mattr=-n64,+n32,+nan2008 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-STATIC-N32 -check-prefix=CHECK-STATIC-N32-N2008 %s
+
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=pic -mattr=-n64,+n32,+nan2008 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-PIC-N32 -check-prefix=CHECK-PIC-N32-N2008 %s
+
+; ### N64 ABI ###
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=static -mattr=+n64 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-STATIC-N64 -check-prefix=CHECK-STATIC-N64-NLEGACY %s
+
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=pic -mattr=+n64 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-PIC-N64 -check-prefix=CHECK-PIC-N64-NLEGACY %s
+
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=static -mattr=+n64,+nan2008 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-STATIC-N64 -check-prefix=CHECK-STATIC-N64-N2008 %s
+
+; RUN: llc -filetype=asm -mtriple mips64-unknown-linux -mcpu=mips64 \
+; RUN: -relocation-model=pic -mattr=+n64,+nan2008 %s -o - | \
+; RUN: FileCheck -check-prefix=CHECK-PIC-N64 -check-prefix=CHECK-PIC-N64-N2008 %s
+
+; CHECK-STATIC-O32: .abicalls
+; CHECK-STATIC-O32: .option pic0
+; CHECK-STATIC-O32: .section .mdebug.abi32
+; CHECK-STATIC-O32-NLEGACY: .nan legacy
+; CHECK-STATIC-O32-N2008: .nan 2008
+
+; CHECK-PIC-O32: .abicalls
+; CHECK-PIC-O32-NOT: .option pic0
+; CHECK-PIC-O32: .section .mdebug.abi32
+; CHECK-PIC-O32-NLEGACY: .nan legacy
+; CHECK-PIC-O32-N2008: .nan 2008
+
+; CHECK-STATIC-N32: .abicalls
+; CHECK-STATIC-N32: .option pic0
+; CHECK-STATIC-N32: .section .mdebug.abiN32
+; CHECK-STATIC-N32-NLEGACY: .nan legacy
+; CHECK-STATIC-N32-N2008: .nan 2008
+
+; CHECK-PIC-N32: .abicalls
+; CHECK-PIC-N32-NOT: .option pic0
+; CHECK-PIC-N32: .section .mdebug.abiN32
+; CHECK-PIC-N32-NLEGACY: .nan legacy
+; CHECK-PIC-N32-N2008: .nan 2008
+
+; CHECK-STATIC-N64: .abicalls
+; CHECK-STATIC-N64-NOT: .option pic0
+; CHECK-STATIC-N64: .section .mdebug.abi64
+; CHECK-STATIC-N64-NLEGACY: .nan legacy
+; CHECK-STATIC-N64-N2008: .nan 2008
+
+; CHECK-PIC-N64: .abicalls
+; CHECK-PIC-N64-NOT: .option pic0
+; CHECK-PIC-N64: .section .mdebug.abi64
+; CHECK-PIC-N64-NLEGACY: .nan legacy
+; CHECK-PIC-N64-N2008: .nan 2008
Modified: llvm/trunk/test/MC/Mips/elf_eflags.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Mips/elf_eflags.s?rev=206396&r1=206395&r2=206396&view=diff
==============================================================================
--- llvm/trunk/test/MC/Mips/elf_eflags.s (original)
+++ llvm/trunk/test/MC/Mips/elf_eflags.s Wed Apr 16 10:48:55 2014
@@ -4,40 +4,79 @@
# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips64r2 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS64R2 %s
# MIPSEL-MIPS64R2: Flags [ (0x80001100)
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips64r2 -mattr=+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS64R2-NAN2008 %s
+# MIPSEL-MIPS64R2-NAN2008: Flags [ (0x80001500)
+
# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips64 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS64 %s
# MIPSEL-MIPS64: Flags [ (0x60001100)
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips64 -mattr=+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS64-NAN2008 %s
+# MIPSEL-MIPS64-NAN2008: Flags [ (0x60001500)
+
# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32r2 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS32R2 %s
# MIPSEL-MIPS32R2: Flags [ (0x70001000)
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32r2 -mattr=+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS32R2-NAN2008 %s
+# MIPSEL-MIPS32R2-NAN2008: Flags [ (0x70001400)
+
# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS32 %s
# MIPSEL-MIPS32: Flags [ (0x50001000)
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 -mattr=+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS32-NAN2008 %s
+# MIPSEL-MIPS32-NAN2008: Flags [ (0x50001400)
+
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=-n64,n32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-N32 %s
# MIPS64EL-MIPS64R2-N32: Flags [ (0x80000020)
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=-n64,n32,+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-N32-NAN2008 %s
+# MIPS64EL-MIPS64R2-N32-NAN2008: Flags [ (0x80000420)
+
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 -mattr=-n64,n32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-N32 %s
# MIPS64EL-MIPS64-N32: Flags [ (0x60000020)
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 -mattr=-n64,n32,+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-N32-NAN2008 %s
+# MIPS64EL-MIPS64-N32-NAN2008: Flags [ (0x60000420)
+
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=n64 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-N64 %s
# MIPS64EL-MIPS64R2-N64: Flags [ (0x80000000)
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=n64,+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-N64-NAN2008 %s
+# MIPS64EL-MIPS64R2-N64-NAN2008: Flags [ (0x80000400)
+
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -mattr=n64 -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-N64 %s
# MIPS64EL-MIPS64-N64: Flags [ (0x60000000)
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -mattr=n64,+nan2008 -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-N64-NAN2008 %s
+# MIPS64EL-MIPS64-N64-NAN2008: Flags [ (0x60000400)
+
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=-n64,o32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-O32 %s
# MIPS64EL-MIPS64R2-O32: Flags [ (0x80001100)
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=-n64,o32,+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-O32-NAN2008 %s
+# MIPS64EL-MIPS64R2-O32-NAN2008: Flags [ (0x80001500)
+
# RUN: llvm-mc -filetype=obj -triple mips64-unknown-linux -mcpu=mips4 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS4 %s
# MIPS4: Flags [ (0x30000000)
+ # RUN: llvm-mc -filetype=obj -triple mips64-unknown-linux -mcpu=mips4 -mattr=+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS4-NAN2008 %s
+# MIPS4-NAN2008: Flags [ (0x30000400)
+
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -mattr=-n64,o32 -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-O32 %s
# MIPS64EL-MIPS64-O32: Flags [ (0x60001100)
-
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -mattr=-n64,o32,+nan2008 -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-O32-NAN2008 %s
+# MIPS64EL-MIPS64-O32-NAN2008: Flags [ (0x60001500)
+
# Default ABI for MIPS64 is N64 as opposed to GCC/GAS (N32)
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2 %s
# MIPS64EL-MIPS64R2: Flags [ (0x80000000)
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-NAN2008 %s
+# MIPS64EL-MIPS64R2-NAN2008: Flags [ (0x80000400)
+
# Default ABI for MIPS64 is N64 as opposed to GCC/GAS (N32)
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64 %s
# MIPS64EL-MIPS64: Flags [ (0x60000000)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 -mattr=+nan2008 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-NAN2008 %s
+# MIPS64EL-MIPS64-NAN2008: Flags [ (0x60000400)
Added: llvm/trunk/test/MC/Mips/elf_eflags_nan2008.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Mips/elf_eflags_nan2008.s?rev=206396&view=auto
==============================================================================
--- llvm/trunk/test/MC/Mips/elf_eflags_nan2008.s (added)
+++ llvm/trunk/test/MC/Mips/elf_eflags_nan2008.s Wed Apr 16 10:48:55 2014
@@ -0,0 +1,12 @@
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o - | \
+# RUN: llvm-readobj -h | \
+# RUN: FileCheck %s -check-prefix=CHECK-OBJ
+# RUN: llvm-mc -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| \
+# RUN: FileCheck %s -check-prefix=CHECK-ASM
+
+# This *MUST* match the output of gas compiled with the same triple.
+# CHECK-OBJ: Flags [ (0x50001400)
+
+# CHECK-ASM: .nan 2008
+
+.nan 2008
Added: llvm/trunk/test/MC/Mips/elf_eflags_nanlegacy.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Mips/elf_eflags_nanlegacy.s?rev=206396&view=auto
==============================================================================
--- llvm/trunk/test/MC/Mips/elf_eflags_nanlegacy.s (added)
+++ llvm/trunk/test/MC/Mips/elf_eflags_nanlegacy.s Wed Apr 16 10:48:55 2014
@@ -0,0 +1,15 @@
+# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o - | \
+# RUN: llvm-readobj -h | \
+# RUN: FileCheck %s -check-prefix=CHECK-OBJ
+# RUN: llvm-mc -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| \
+# RUN: FileCheck %s -check-prefix=CHECK-ASM
+
+# This *MUST* match the output of gas compiled with the same triple.
+# CHECK-OBJ: Flags [ (0x50001000)
+
+# CHECK-ASM: .nan 2008
+# CHECK-ASM: .nan legacy
+
+.nan 2008
+// Let's override the previous directive!
+.nan legacy
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