weekend checkpoint of arm neon builtins codegen.

TODO: add remainder of builtins to CGBuiltin, add code to SemaChecking to validate constants.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105532 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2010-06-07 16:01:56 +00:00
Родитель 57d12fd4a2
Коммит 998622c101
1 изменённых файлов: 89 добавлений и 0 удалений

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@ -879,8 +879,48 @@ Value *CodeGenFunction::EmitTargetBuiltinExpr(unsigned BuiltinID,
} }
} }
const llvm::Type *GetNeonType(LLVMContext &Ctx, unsigned type, bool q) {
switch (type) {
default: break;
case 0:
case 5: return llvm::VectorType::get(llvm::Type::getInt8Ty(Ctx), 8 << q);
case 6:
case 7:
case 1: return llvm::VectorType::get(llvm::Type::getInt16Ty(Ctx), 4 << q);
case 2: return llvm::VectorType::get(llvm::Type::getInt32Ty(Ctx), 2 << q);
case 3: return llvm::VectorType::get(llvm::Type::getInt64Ty(Ctx), 1 << q);
case 4: return llvm::VectorType::get(llvm::Type::getFloatTy(Ctx), 2 << q);
};
return 0;
}
Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID, Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID,
const CallExpr *E) { const CallExpr *E) {
llvm::SmallVector<Value*, 4> Ops;
bool usgn, poly, half;
const llvm::Type *Ty;
unsigned Int;
// Determine the type of this overloaded NEON intrinsic.
if (BuiltinID != ARM::BI__builtin_thread_pointer) {
for (unsigned i = 0, e = E->getNumArgs() - 1; i != e; i++)
Ops.push_back(EmitScalarExpr(E->getArg(i)));
llvm::APSInt Result;
const Expr *Arg = E->getArg(E->getNumArgs()-1);
if (!Arg->isIntegerConstantExpr(Result, getContext()))
return 0;
unsigned type = Result.getZExtValue();
Ty = GetNeonType(VMContext, type & 0x7, type & 0x10);
if (!Ty)
return 0;
usgn = type & 0x08;
poly = type == 5 || type == 6;
half = type == 7;
}
switch (BuiltinID) { switch (BuiltinID) {
default: return 0; default: return 0;
@ -888,6 +928,55 @@ Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID,
Value *AtomF = CGM.getIntrinsic(Intrinsic::arm_thread_pointer, 0, 0); Value *AtomF = CGM.getIntrinsic(Intrinsic::arm_thread_pointer, 0, 0);
return Builder.CreateCall(AtomF); return Builder.CreateCall(AtomF);
} }
// FIXME: bitcast args, return.
case ARM::BI__builtin_neon_vaba_v:
case ARM::BI__builtin_neon_vabaq_v: {
Int = usgn ? Intrinsic::arm_neon_vabau : Intrinsic::arm_neon_vabas;
Value *F = CGM.getIntrinsic(Int, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 3, "vaba");
}
case ARM::BI__builtin_neon_vabal_v: {
Int = usgn ? Intrinsic::arm_neon_vabalu : Intrinsic::arm_neon_vabals;
Value *F = CGM.getIntrinsic(Int, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 3, "vabal");
}
case ARM::BI__builtin_neon_vabd_v:
case ARM::BI__builtin_neon_vabdq_v: {
Int = usgn ? Intrinsic::arm_neon_vabdu : Intrinsic::arm_neon_vabds;
Value *F = CGM.getIntrinsic(Int, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 2, "vabd");
}
case ARM::BI__builtin_neon_vabdl_v: {
Int = usgn ? Intrinsic::arm_neon_vabdlu : Intrinsic::arm_neon_vabdls;
Value *F = CGM.getIntrinsic(Int, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 2, "vabdl");
}
case ARM::BI__builtin_neon_vabs_v:
case ARM::BI__builtin_neon_vabsq_v: {
Value *F = CGM.getIntrinsic(Intrinsic::arm_neon_vabs, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 1, "vabs");
}
case ARM::BI__builtin_neon_vaddhn_v: {
Value *F = CGM.getIntrinsic(Intrinsic::arm_neon_vaddhn, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 2, "vaddhn");
}
case ARM::BI__builtin_neon_vaddl_v: {
Int = usgn ? Intrinsic::arm_neon_vaddlu : Intrinsic::arm_neon_vaddls;
Value *F = CGM.getIntrinsic(Int, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 2, "vaddl");
}
case ARM::BI__builtin_neon_vaddw_v: {
Int = usgn ? Intrinsic::arm_neon_vaddws : Intrinsic::arm_neon_vaddwu;
Value *F = CGM.getIntrinsic(Int, &Ty, 1);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + 2, "vaddw");
}
// FIXME: vbsl -> or ((0 & 1), (0 & 2)), impl. with generic ops?
case ARM::BI__builtin_neon_vcage_v:
return Builder.CreateCall(CGM.getIntrinsic(Intrinsic::arm_neon_vacged),
&Ops[0], &Ops[0] + 2, "vcage");
case ARM::BI__builtin_neon_vcageq_v:
return Builder.CreateCall(CGM.getIntrinsic(Intrinsic::arm_neon_vacgeq),
&Ops[0], &Ops[0] + 2, "vcage");
} }
} }