From 4e694c96f1c0c2d09a287ff69bab5896e04dd3fd Mon Sep 17 00:00:00 2001 From: Bruno Cardoso Lopes Date: Tue, 31 May 2011 02:54:07 +0000 Subject: This patch implements atomic intrinsics atomic.load.add (sub,and,or,xor, nand), atomic.swap and atomic.cmp.swap, all in i8, i16 and i32 versions. The intrinsics are implemented by creating pseudo-instructions, which are then expanded in the method MipsTargetLowering::EmitInstrWithCustomInserter. Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132323 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/Mips/MipsMachineFunction.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'lib/Target/Mips/MipsMachineFunction.h') diff --git a/lib/Target/Mips/MipsMachineFunction.h b/lib/Target/Mips/MipsMachineFunction.h index 0a485ec5e5..df40e6c748 100644 --- a/lib/Target/Mips/MipsMachineFunction.h +++ b/lib/Target/Mips/MipsMachineFunction.h @@ -48,11 +48,17 @@ private: std::pair InArgFIRange, OutArgFIRange; int GPFI; // Index of the frame object for restoring $gp unsigned MaxCallFrameSize; + + /// AtomicFrameIndex - To implement atomic.swap and atomic.cmp.swap + /// intrinsics, it is necessary to use a temporary stack location. + /// This field holds the frame index of this location. + int AtomicFrameIndex; public: MipsFunctionInfo(MachineFunction& MF) : SRetReturnReg(0), GlobalBaseReg(0), VarArgsFrameIndex(0), InArgFIRange(std::make_pair(-1, 0)), - OutArgFIRange(std::make_pair(-1, 0)), GPFI(0), MaxCallFrameSize(0) + OutArgFIRange(std::make_pair(-1, 0)), GPFI(0), MaxCallFrameSize(0), + AtomicFrameIndex(-1) {} bool isInArgFI(int FI) const { @@ -86,6 +92,9 @@ public: unsigned getMaxCallFrameSize() const { return MaxCallFrameSize; } void setMaxCallFrameSize(unsigned S) { MaxCallFrameSize = S; } + + int getAtomicFrameIndex() const { return AtomicFrameIndex; } + void setAtomicFrameIndex(int Index) { AtomicFrameIndex = Index; } }; } // end of namespace llvm -- cgit v1.2.3