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Add a new string member to the TargetOptions struct for the name

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of the abi we should be using. For targets that don't use the
option there's no change, otherwise this allows external users
to set the ABI via string and avoid some of the -backend-option
pain in clang.

Use this option to move the ABI for the ARM port from the
Subtarget to the TargetMachine and update the testcases
accordingly since it's no longer valid to set via -mattr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224492 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2014-12-18 02:20:58 +00:00
parent 360cbd4839
commit c559ba7251
13 changed files with 107 additions and 71 deletions
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51
lib/Target/ARM/ARMSubtarget.cpp
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@@ -18,6 +18,7 @@
#include "ARMSelectionDAGInfo.h"
#include "ARMSubtarget.h"
#include "ARMMachineFunctionInfo.h"
#include "ARMTargetMachine.h"
#include "Thumb1FrameLowering.h"
#include "Thumb1InstrInfo.h"
#include "Thumb2InstrInfo.h"
@@ -147,11 +148,11 @@ ARMSubtarget &ARMSubtarget::initializeSubtargetDependencies(StringRef CPU,
}
ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS, const TargetMachine &TM,
const std::string &FS, const ARMBaseTargetMachine &TM,
bool IsLittle)
: ARMGenSubtargetInfo(TT, CPU, FS), ARMProcFamily(Others),
ARMProcClass(None), stackAlignment(4), CPUString(CPU), IsLittle(IsLittle),
TargetTriple(TT), Options(TM.Options), TargetABI(ARM_ABI_UNKNOWN),
TargetTriple(TT), Options(TM.Options), TM(TM),
DL(computeDataLayout(initializeSubtargetDependencies(CPU, FS))),
TSInfo(DL),
InstrInfo(isThumb1Only()
@@ -245,43 +246,6 @@ void ARMSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
// Initialize scheduling itinerary for the specified CPU.
InstrItins = getInstrItineraryForCPU(CPUString);
if (TargetABI == ARM_ABI_UNKNOWN) {
// FIXME: This is duplicated code from the front end and should be unified.
if (TargetTriple.isOSBinFormatMachO()) {
if (TargetTriple.getEnvironment() == llvm::Triple::EABI ||
(TargetTriple.getOS() == llvm::Triple::UnknownOS &&
TargetTriple.getObjectFormat() == llvm::Triple::MachO) ||
CPU.startswith("cortex-m")) {
TargetABI = ARM_ABI_AAPCS;
} else {
TargetABI = ARM_ABI_APCS;
}
} else if (TargetTriple.isOSWindows()) {
// FIXME: this is invalid for WindowsCE
TargetABI = ARM_ABI_AAPCS;
} else {
// Select the default based on the platform.
switch (TargetTriple.getEnvironment()) {
case llvm::Triple::Android:
case llvm::Triple::GNUEABI:
case llvm::Triple::GNUEABIHF:
case llvm::Triple::EABIHF:
case llvm::Triple::EABI:
TargetABI = ARM_ABI_AAPCS;
break;
case llvm::Triple::GNU:
TargetABI = ARM_ABI_APCS;
break;
default:
if (TargetTriple.getOS() == llvm::Triple::NetBSD)
TargetABI = ARM_ABI_APCS;
else
TargetABI = ARM_ABI_AAPCS;
break;
}
}
}
// FIXME: this is invalid for WindowsCE
if (isTargetWindows())
NoARM = true;
@@ -346,6 +310,15 @@ void ARMSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
UseNEONForSinglePrecisionFP = true;
}
bool ARMSubtarget::isAPCS_ABI() const {
assert(TM.TargetABI != ARMBaseTargetMachine::ARM_ABI_UNKNOWN);
return TM.TargetABI == ARMBaseTargetMachine::ARM_ABI_APCS;
}
bool ARMSubtarget::isAAPCS_ABI() const {
assert(TM.TargetABI != ARMBaseTargetMachine::ARM_ABI_UNKNOWN);
return TM.TargetABI == ARMBaseTargetMachine::ARM_ABI_AAPCS;
}
/// GVIsIndirectSymbol - true if the GV will be accessed via an indirect symbol.
bool
ARMSubtarget::GVIsIndirectSymbol(const GlobalValue *GV,