diff --git a/lib/Target/Sparc/SparcFrameLowering.cpp b/lib/Target/Sparc/SparcFrameLowering.cpp index 7874240f598..afa8411802d 100644 --- a/lib/Target/Sparc/SparcFrameLowering.cpp +++ b/lib/Target/Sparc/SparcFrameLowering.cpp @@ -106,3 +106,18 @@ void SparcFrameLowering::emitEpilogue(MachineFunction &MF, BuildMI(MBB, MBBI, dl, TII.get(SP::RESTORErr), SP::G0).addReg(SP::G0) .addReg(SP::G0); } + +bool SparcFrameLowering::hasReservedCallFrame(const MachineFunction &MF) const { + //Reserve call frame if there are no variable sized objects on the stack + return !MF.getFrameInfo()->hasVarSizedObjects(); +} + +// hasFP - Return true if the specified function should have a dedicated frame +// pointer register. This is true if the function has variable sized allocas or +// if frame pointer elimination is disabled. +bool SparcFrameLowering::hasFP(const MachineFunction &MF) const { + const MachineFrameInfo *MFI = MF.getFrameInfo(); + return MF.getTarget().Options.DisableFramePointerElim(MF) || + MFI->hasVarSizedObjects() || MFI->isFrameAddressTaken(); +} + diff --git a/lib/Target/Sparc/SparcFrameLowering.h b/lib/Target/Sparc/SparcFrameLowering.h index c3756620161..4a3cef703ff 100644 --- a/lib/Target/Sparc/SparcFrameLowering.h +++ b/lib/Target/Sparc/SparcFrameLowering.h @@ -38,7 +38,8 @@ public: MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const; - bool hasFP(const MachineFunction &MF) const { return false; } + bool hasReservedCallFrame(const MachineFunction &MF) const; + bool hasFP(const MachineFunction &MF) const; }; } // End llvm namespace diff --git a/test/CodeGen/SPARC/2013-05-17-CallFrame.ll b/test/CodeGen/SPARC/2013-05-17-CallFrame.ll new file mode 100644 index 00000000000..9e9e8216a8e --- /dev/null +++ b/test/CodeGen/SPARC/2013-05-17-CallFrame.ll @@ -0,0 +1,16 @@ +; RUN: llc -march=sparc < %s | FileCheck %s + +; CHECK: variable_alloca_with_adj_call_stack +; CHECK: save %sp, -96, %sp +; CHECK: add %sp, -16, %sp +; CHECK: call foo +; CHECK: add %sp, 16, %sp +define void @variable_alloca_with_adj_call_stack(i32 %num) { +entry: + %0 = alloca i8, i32 %num, align 8 + call void @foo(i8* %0, i8* %0, i8* %0, i8* %0, i8* %0, i8* %0, i8* %0, i8* %0, i8* %0, i8* %0) + ret void +} + + +declare void @foo(i8* , i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*);