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This patch implements atomic intrinsics atomic.load.add (sub,and,or,xor,

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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
This commit is contained in:
Bruno Cardoso Lopes
2011-05-31 02:54:07 +00:00
parent d979686bb4
commit 4e694c96f1
5 changed files with 917 additions and 6 deletions
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11
lib/Target/Mips/MipsMachineFunction.h
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@@ -48,11 +48,17 @@ private:
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 @@ 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