diff options
Diffstat (limited to 'lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | lib/CodeGen/CGBuiltin.cpp | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp index f32031325d..1574ae1085 100644 --- a/lib/CodeGen/CGBuiltin.cpp +++ b/lib/CodeGen/CGBuiltin.cpp @@ -25,6 +25,17 @@ using namespace clang; using namespace CodeGen; using namespace llvm; +/// Utility to insert an atomic instruction based Instrinsic::ID and +// the expression node +static RValue EmitBinaryAtomic(CodeGenFunction& CFG, + Intrinsic::ID Id, const CallExpr *E) { + const llvm::Type *ResType = CFG.ConvertType(E->getType()); + Value *AtomF = CFG.CGM.getIntrinsic(Id, &ResType, 1); + return RValue::get(CFG.Builder.CreateCall2(AtomF, + CFG.EmitScalarExpr(E->getArg(0)), + CFG.EmitScalarExpr(E->getArg(1)))); +} + RValue CodeGenFunction::EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E) { switch (BuiltinID) { default: { @@ -241,7 +252,35 @@ RValue CodeGenFunction::EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E) { return RValue::get(Builder.CreateAlloca(llvm::Type::Int8Ty, EmitScalarExpr(E->getArg(0)), "tmp")); + case Builtin::BI__sync_fetch_and_add: + return EmitBinaryAtomic(*this, Intrinsic::atomic_las, E); + case Builtin::BI__sync_fetch_and_sub: + return EmitBinaryAtomic(*this, Intrinsic::atomic_lss, E); + case Builtin::BI__sync_fetch_and_min: + return EmitBinaryAtomic(*this, Intrinsic::atomic_load_min, E); + case Builtin::BI__sync_fetch_and_max: + return EmitBinaryAtomic(*this, Intrinsic::atomic_load_max, E); + case Builtin::BI__sync_fetch_and_umin: + return EmitBinaryAtomic(*this, Intrinsic::atomic_load_umin, E); + case Builtin::BI__sync_fetch_and_umax: + return EmitBinaryAtomic(*this, Intrinsic::atomic_load_umax, E); + case Builtin::BI__sync_fetch_and_and: + return EmitBinaryAtomic(*this, Intrinsic::atomic_load_and, E); + case Builtin::BI__sync_fetch_and_or: + return EmitBinaryAtomic(*this, Intrinsic::atomic_load_or, E); + case Builtin::BI__sync_fetch_and_xor: + return EmitBinaryAtomic(*this, Intrinsic::atomic_load_xor, E); + case Builtin::BI__sync_val_compare_and_swap: { + Value *Args[3]; + Args[0]= EmitScalarExpr(E->getArg(0)); + Args[1] = EmitScalarExpr(E->getArg(1)); + Args[2] = EmitScalarExpr(E->getArg(2)); + const llvm::Type *ResType = ConvertType(E->getType()); + Value *AtomF = CGM.getIntrinsic(Intrinsic::atomic_lcs, &ResType, 1); + return RValue::get(Builder.CreateCall(AtomF, &Args[0], &Args[1]+2)); } + case Builtin::BI__sync_lock_test_and_set: + return EmitBinaryAtomic(*this, Intrinsic::atomic_swap, E); } return RValue::get(0); } |