def IntrReadMem : IntrinsicProperty;
// IntrWriteArgMem - This intrinsic reads and writes only from memory that one
-// of its arguments points to, but may access an unspecified amount. It has no
-// other side effects. This may only be used if the intrinsic doesn't "capture"
-// the argument pointer (e.g. storing it someplace).
+// of its arguments points to, but may access an unspecified amount. The reads
+// and writes may be volatile, but except for this it has no other side effects.
def IntrWriteArgMem : IntrinsicProperty;
// IntrWriteMem - This intrinsic may read or modify unspecified memory or has
// Commutative - This intrinsic is commutative: X op Y == Y op X.
def Commutative : IntrinsicProperty;
+// NoCapture - The specified argument pointer is not captured by the intrinsic.
+class NoCapture<int argNo> : IntrinsicProperty {
+ int ArgNo = argNo;
+}
+
//===----------------------------------------------------------------------===//
// Types used by intrinsics.
//===----------------------------------------------------------------------===//
LLVMType ElTy = elty;
}
+// Match the type of another intrinsic parameter. Number is an index into the
+// list of overloaded types for the intrinsic, excluding all the fixed types.
+// The Number value must refer to a previously listed type. For example:
+// Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_anyfloat_ty, LLVMMatchType<0>]>
+// has two overloaded types, the 2nd and 3rd arguments. LLVMMatchType<0>
+// refers to the first overloaded type, which is the 2nd argument.
class LLVMMatchType<int num>
: LLVMType<OtherVT>{
int Number = num;
}
+// Match the type of another intrinsic parameter that is expected to be
+// an integral vector type, but change the element size to be twice as wide
+// or half as wide as the other type. This is only useful when the intrinsic
+// is overloaded, so the matched type should be declared as iAny.
+class LLVMExtendedElementVectorType<int num> : LLVMMatchType<num>;
+class LLVMTruncatedElementVectorType<int num> : LLVMMatchType<num>;
+
def llvm_void_ty : LLVMType<isVoid>;
def llvm_anyint_ty : LLVMType<iAny>;
def llvm_anyfloat_ty : LLVMType<fAny>;
list<LLVMType> RetTypes = ret_types;
list<LLVMType> ParamTypes = param_types;
list<IntrinsicProperty> Properties = properties;
+
+ bit isTarget = 0;
}
/// GCCBuiltin - If this intrinsic exactly corresponds to a GCC builtin, this
[IntrReadArgMem]>;
def int_gcwrite : Intrinsic<[llvm_void_ty],
[llvm_ptr_ty, llvm_ptr_ty, llvm_ptrptr_ty],
- [IntrWriteArgMem]>;
+ [IntrWriteArgMem, NoCapture<1>, NoCapture<2>]>;
//===--------------------- Code Generator Intrinsics ----------------------===//
//
// with respect to nearby accesses to the same memory.
def int_prefetch : Intrinsic<[llvm_void_ty],
[llvm_ptr_ty, llvm_i32_ty, llvm_i32_ty],
- [IntrWriteArgMem]>;
+ [IntrWriteArgMem, NoCapture<0>]>;
def int_pcmarker : Intrinsic<[llvm_void_ty], [llvm_i32_ty]>;
def int_readcyclecounter : Intrinsic<[llvm_i64_ty]>;
//===------------------- Standard C Library Intrinsics --------------------===//
//
-let Properties = [IntrWriteArgMem] in {
- def int_memcpy : Intrinsic<[llvm_void_ty],
- [llvm_ptr_ty, llvm_ptr_ty,
- llvm_anyint_ty, llvm_i32_ty]>;
- def int_memmove : Intrinsic<[llvm_void_ty],
- [llvm_ptr_ty, llvm_ptr_ty,
- llvm_anyint_ty, llvm_i32_ty]>;
- def int_memset : Intrinsic<[llvm_void_ty],
- [llvm_ptr_ty, llvm_i8_ty,
- llvm_anyint_ty, llvm_i32_ty]>;
-}
+def int_memcpy : Intrinsic<[llvm_void_ty],
+ [llvm_ptr_ty, llvm_ptr_ty, llvm_anyint_ty,
+ llvm_i32_ty],
+ [IntrWriteArgMem, NoCapture<0>, NoCapture<1>]>;
+def int_memmove : Intrinsic<[llvm_void_ty],
+ [llvm_ptr_ty, llvm_ptr_ty, llvm_anyint_ty,
+ llvm_i32_ty],
+ [IntrWriteArgMem, NoCapture<0>, NoCapture<1>]>;
+def int_memset : Intrinsic<[llvm_void_ty],
+ [llvm_ptr_ty, llvm_i8_ty, llvm_anyint_ty,
+ llvm_i32_ty],
+ [IntrWriteArgMem, NoCapture<0>]>;
// These functions do not actually read memory, but they are sensitive to the
// rounding mode. This needs to be modelled separately; in the meantime
//===------------------------ Debugger Intrinsics -------------------------===//
//
-def int_dbg_stoppoint : Intrinsic<[llvm_void_ty],
- [llvm_i32_ty, llvm_i32_ty,
- llvm_descriptor_ty]>;
-def int_dbg_region_start : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
-def int_dbg_region_end : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
-def int_dbg_func_start : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
-def int_dbg_declare : Intrinsic<[llvm_void_ty],
- [llvm_descriptor_ty, llvm_descriptor_ty]>;
+// None of these intrinsics accesses memory at all...but that doesn't mean the
+// optimizers can change them aggressively. Special handling needed in a few
+// places.
+let Properties = [IntrNoMem] in {
+ def int_dbg_stoppoint : Intrinsic<[llvm_void_ty],
+ [llvm_i32_ty, llvm_i32_ty,
+ llvm_descriptor_ty]>;
+ def int_dbg_region_start : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
+ def int_dbg_region_end : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
+ def int_dbg_func_start : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
+ def int_dbg_declare : Intrinsic<[llvm_void_ty],
+ [llvm_descriptor_ty, llvm_descriptor_ty]>;
+}
//===------------------ Exception Handling Intrinsics----------------------===//
//
//
def int_init_trampoline : Intrinsic<[llvm_ptr_ty],
[llvm_ptr_ty, llvm_ptr_ty, llvm_ptr_ty],
- []>,
+ [IntrWriteArgMem]>,
GCCBuiltin<"__builtin_init_trampoline">;
//===------------------------ Overflow Intrinsics -------------------------===//
def int_atomic_cmp_swap : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>, LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_val_compare_and_swap">;
def int_atomic_load_add : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_add">;
def int_atomic_swap : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_lock_test_and_set">;
def int_atomic_load_sub : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_sub">;
def int_atomic_load_and : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_and">;
def int_atomic_load_or : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_or">;
def int_atomic_load_xor : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_xor">;
def int_atomic_load_nand : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_nand">;
def int_atomic_load_min : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_min">;
def int_atomic_load_max : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_max">;
def int_atomic_load_umin : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_umin">;
def int_atomic_load_umax : Intrinsic<[llvm_anyint_ty],
[LLVMAnyPointerType<LLVMMatchType<0>>,
LLVMMatchType<0>],
- [IntrWriteArgMem]>,
+ [IntrWriteArgMem, NoCapture<0>]>,
GCCBuiltin<"__sync_fetch_and_umax">;
//===-------------------------- Other Intrinsics --------------------------===//
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