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
diff --git a/lib/Target/Mips/MipsMachineFunction.h b/lib/Target/Mips/MipsMachineFunction.h
index 0a485ec..df40e6c 100644
--- a/lib/Target/Mips/MipsMachineFunction.h
+++ b/lib/Target/Mips/MipsMachineFunction.h
@@ -48,11 +48,17 @@
std::pair<int, int> 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 @@
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