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author | Devang Patel <dpatel@apple.com> | 2009-06-04 22:05:33 +0000 |
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committer | Devang Patel <dpatel@apple.com> | 2009-06-04 22:05:33 +0000 |
commit | d18e31ae17390d9c6f6cf93d18badf962452031d (patch) | |
tree | bf18aac26483ba94dfa71c81dc2f5d2fb2bbe517 /lib/Target | |
parent | 4c9369df57a52cec5e1fc735e61a979766288074 (diff) | |
download | external_llvm-d18e31ae17390d9c6f6cf93d18badf962452031d.zip external_llvm-d18e31ae17390d9c6f6cf93d18badf962452031d.tar.gz external_llvm-d18e31ae17390d9c6f6cf93d18badf962452031d.tar.bz2 |
Add new function attribute - noredzone.
Update code generator to use this attribute and remove DisableRedZone target option.
Update llc to set this attribute when -disable-red-zone command line option is used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72894 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
-rw-r--r-- | lib/Target/PowerPC/PPCRegisterInfo.cpp | 1 | ||||
-rw-r--r-- | lib/Target/TargetMachine.cpp | 6 | ||||
-rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 1 |
3 files changed, 2 insertions, 6 deletions
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp index 5d5beeb..cb31506 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.cpp +++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp @@ -908,6 +908,7 @@ void PPCRegisterInfo::determineFrameLayout(MachineFunction &MF) const { // If we are a leaf function, and use up to 224 bytes of stack space, // don't have a frame pointer, calls, or dynamic alloca then we do not need // to adjust the stack pointer (we fit in the Red Zone). + bool DisableRedZone = MF.getFunction()->hasFnAttr(Attribute::NoRedZone); if (!DisableRedZone && FrameSize <= 224 && // Fits in red zone. !MFI->hasVarSizedObjects() && // No dynamic alloca. diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp index 1b042dd..1259dbe 100644 --- a/lib/Target/TargetMachine.cpp +++ b/lib/Target/TargetMachine.cpp @@ -41,7 +41,6 @@ namespace llvm { bool RealignStack; bool DisableJumpTables; bool StrongPHIElim; - bool DisableRedZone; bool AsmVerbosityDefault(false); } @@ -163,11 +162,6 @@ EnableStrongPHIElim(cl::Hidden, "strong-phi-elim", cl::desc("Use strong PHI elimination."), cl::location(StrongPHIElim), cl::init(false)); -static cl::opt<bool, true> -DisableRedZoneOption("disable-red-zone", - cl::desc("Do not emit code that uses the red zone."), - cl::location(DisableRedZone), - cl::init(false)); //--------------------------------------------------------------------------- // TargetMachine Class diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 674be29..5d56db5 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -751,6 +751,7 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const { // function, and use up to 128 bytes of stack space, don't have a frame // pointer, calls, or dynamic alloca then we do not need to adjust the // stack pointer (we fit in the Red Zone). + bool DisableRedZone = Fn->hasFnAttr(Attribute::NoRedZone); if (Is64Bit && !DisableRedZone && !needsStackRealignment(MF) && !MFI->hasVarSizedObjects() && // No dynamic alloca. |