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diff --git a/include/llvm/ADT/Triple.h b/include/llvm/ADT/Triple.h
index e01db0a..bf9361a 100644
--- a/include/llvm/ADT/Triple.h
+++ b/include/llvm/ADT/Triple.h
@@ -173,6 +173,9 @@ public:
EABI,
EABIHF,
Android,
+ Musl,
+ MuslEABI,
+ MuslEABIHF,
MSVC,
Itanium,
@@ -544,6 +547,13 @@ public:
/// Tests whether the target is Android
bool isAndroid() const { return getEnvironment() == Triple::Android; }
+ /// Tests whether the environment is musl-libc
+ bool isMusl() const {
+ return getEnvironment() == Triple::Musl ||
+ getEnvironment() == Triple::MuslEABI ||
+ getEnvironment() == Triple::MuslEABIHF;
+ }
+
/// @}
/// @name Mutators
/// @{
diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index 11afcf7..ad9cffd 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -200,6 +200,9 @@ const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
case EABI: return "eabi";
case EABIHF: return "eabihf";
case Android: return "android";
+ case Musl: return "musl";
+ case MuslEABI: return "musleabi";
+ case MuslEABIHF: return "musleabihf";
case MSVC: return "msvc";
case Itanium: return "itanium";
case Cygnus: return "cygnus";
@@ -454,6 +457,9 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
.StartsWith("code16", Triple::CODE16)
.StartsWith("gnu", Triple::GNU)
.StartsWith("android", Triple::Android)
+ .StartsWith("musleabihf", Triple::MuslEABIHF)
+ .StartsWith("musleabi", Triple::MuslEABI)
+ .StartsWith("musl", Triple::Musl)
.StartsWith("msvc", Triple::MSVC)
.StartsWith("itanium", Triple::Itanium)
.StartsWith("cygnus", Triple::Cygnus)
@@ -1431,6 +1437,7 @@ StringRef Triple::getARMCPUForArch(StringRef MArch) const {
switch (getEnvironment()) {
case llvm::Triple::EABIHF:
case llvm::Triple::GNUEABIHF:
+ case llvm::Triple::MuslEABIHF:
return "arm1176jzf-s";
default:
return "arm7tdmi";
diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
index f3813c8..45e8c4a 100644
--- a/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -541,7 +541,8 @@ void ARMAsmPrinter::EmitEndOfAsmFile(Module &M) {
ARMTargetStreamer &ATS = static_cast<ARMTargetStreamer &>(TS);
if (OptimizationGoals > 0 &&
- (Subtarget->isTargetAEABI() || Subtarget->isTargetGNUAEABI()))
+ (Subtarget->isTargetAEABI() || Subtarget->isTargetGNUAEABI() ||
+ Subtarget->isTargetMuslAEABI()))
ATS.emitAttribute(ARMBuildAttrs::ABI_optimization_goals, OptimizationGoals);
OptimizationGoals = -1;
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index a2daa89..3b2c0bb 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -254,7 +254,7 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
// RTLIB
if (Subtarget->isAAPCS_ABI() &&
(Subtarget->isTargetAEABI() || Subtarget->isTargetGNUAEABI() ||
- Subtarget->isTargetAndroid())) {
+ Subtarget->isTargetMuslAEABI() || Subtarget->isTargetAndroid())) {
static const struct {
const RTLIB::Libcall Op;
const char * const Name;
@@ -787,7 +787,8 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
setOperationAction(ISD::SREM, MVT::i32, Expand);
setOperationAction(ISD::UREM, MVT::i32, Expand);
// Register based DivRem for AEABI (RTABI 4.2)
- if (Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid()) {
+ if (Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid() ||
+ Subtarget->isTargetMuslAEABI()) {
setOperationAction(ISD::SREM, MVT::i64, Custom);
setOperationAction(ISD::UREM, MVT::i64, Custom);
@@ -11651,7 +11652,8 @@ static TargetLowering::ArgListTy getDivRemArgList(
}
SDValue ARMTargetLowering::LowerDivRem(SDValue Op, SelectionDAG &DAG) const {
- assert((Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid()) &&
+ assert((Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid() ||
+ Subtarget->isTargetMuslAEABI()) &&
"Register-based DivRem lowering only");
unsigned Opcode = Op->getOpcode();
assert((Opcode == ISD::SDIVREM || Opcode == ISD::UDIVREM) &&
diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h
index 4d54e57..fa1c516 100644
--- a/lib/Target/ARM/ARMSubtarget.h
+++ b/lib/Target/ARM/ARMSubtarget.h
@@ -399,14 +399,21 @@ public:
TargetTriple.getEnvironment() == Triple::GNUEABIHF) &&
!isTargetDarwin() && !isTargetWindows();
}
+ bool isTargetMuslAEABI() const {
+ return (TargetTriple.getEnvironment() == Triple::MuslEABI ||
+ TargetTriple.getEnvironment() == Triple::MuslEABIHF) &&
+ !isTargetDarwin() && !isTargetWindows();
+ }
// ARM Targets that support EHABI exception handling standard
// Darwin uses SjLj. Other targets might need more checks.
bool isTargetEHABICompatible() const {
return (TargetTriple.getEnvironment() == Triple::EABI ||
TargetTriple.getEnvironment() == Triple::GNUEABI ||
+ TargetTriple.getEnvironment() == Triple::MuslEABI ||
TargetTriple.getEnvironment() == Triple::EABIHF ||
TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
+ TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
isTargetAndroid()) &&
!isTargetDarwin() && !isTargetWindows();
}
@@ -414,6 +421,7 @@ public:
bool isTargetHardFloat() const {
// FIXME: this is invalid for WindowsCE
return TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
+ TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
TargetTriple.getEnvironment() == Triple::EABIHF ||
isTargetWindows() || isAAPCS16_ABI();
}
diff --git a/lib/Target/ARM/ARMTargetMachine.cpp b/lib/Target/ARM/ARMTargetMachine.cpp
index fca1901..a96b1f9 100644
--- a/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/lib/Target/ARM/ARMTargetMachine.cpp
@@ -99,6 +99,8 @@ computeTargetABI(const Triple &TT, StringRef CPU,
case llvm::Triple::Android:
case llvm::Triple::GNUEABI:
case llvm::Triple::GNUEABIHF:
+ case llvm::Triple::MuslEABI:
+ case llvm::Triple::MuslEABIHF:
case llvm::Triple::EABIHF:
case llvm::Triple::EABI:
TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS;
@@ -192,7 +194,8 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, const Triple &TT,
// Default to triple-appropriate EABI
if (Options.EABIVersion == EABI::Default ||
Options.EABIVersion == EABI::Unknown) {
- if (Subtarget.isTargetGNUAEABI())
+ // musl is compatible with glibc with regard to EABI version
+ if (Subtarget.isTargetGNUAEABI() || Subtarget.isTargetMuslAEABI())
this->Options.EABIVersion = EABI::GNU;
else
this->Options.EABIVersion = EABI::EABI5;
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