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Revert accidental commit.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131739 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-05-20 17:38:48 +00:00
parent d0b76d0004
commit 0b65599015
3 changed files with 1 additions and 10 deletions
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2
lib/Target/ARM/ARMISelLowering.cpp
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@@ -1182,7 +1182,7 @@ ARMTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
bool IsStructRet = (Outs.empty()) ? false : Outs[0].Flags.isSRet(); bool IsStructRet = (Outs.empty()) ? false : Outs[0].Flags.isSRet();
bool IsSibCall = false; bool IsSibCall = false;
// Temporarily disable tail calls so things don't break. // Temporarily disable tail calls so things don't break.
if (!EnableARMTailCalls && !Subtarget->supportsTailCall()) if (!EnableARMTailCalls)
isTailCall = false; isTailCall = false;
if (isTailCall) { if (isTailCall) {
// Check if it's really possible to do a tail call. // Check if it's really possible to do a tail call.

3
lib/Target/ARM/ARMSubtarget.cpp
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@@ -46,7 +46,6 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
, PostRAScheduler(false) , PostRAScheduler(false)
, IsR9Reserved(ReserveR9) , IsR9Reserved(ReserveR9)
, UseMovt(false) , UseMovt(false)
, SupportsTailCall(false)
, HasFP16(false) , HasFP16(false)
, HasD16(false) , HasD16(false)
, HasHardwareDivide(false) , HasHardwareDivide(false)
@@ -154,8 +153,6 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
else { else {
IsR9Reserved = ReserveR9 | (ARMArchVersion < V6); IsR9Reserved = ReserveR9 | (ARMArchVersion < V6);
UseMovt = DarwinUseMOVT && hasV6T2Ops(); UseMovt = DarwinUseMOVT && hasV6T2Ops();
const Triple &T = getTargetTriple();
SupportsTailCall = T.getOS() == Triple::IOS && !T.isOSVersionLT(5, 0);
} }
if (!isThumb() || hasThumb2()) if (!isThumb() || hasThumb2())

6
lib/Target/ARM/ARMSubtarget.h
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@@ -87,11 +87,6 @@ protected:
/// imms (including global addresses). /// imms (including global addresses).
bool UseMovt; bool UseMovt;
/// SupportsTailCall - True if the OS supports tail call. The dynamic linker
/// must be able to synthesize call stubs for interworking between ARM and
/// Thumb.
bool SupportsTailCall;
/// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF /// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF
/// only so far) /// only so far)
bool HasFP16; bool HasFP16;
@@ -222,7 +217,6 @@ protected:
bool isR9Reserved() const { return IsR9Reserved; } bool isR9Reserved() const { return IsR9Reserved; }
bool useMovt() const { return UseMovt && hasV6T2Ops(); } bool useMovt() const { return UseMovt && hasV6T2Ops(); }
bool supportsTailCall() const { return SupportsTailCall; }
bool allowsUnalignedMem() const { return AllowsUnalignedMem; } bool allowsUnalignedMem() const { return AllowsUnalignedMem; }