mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-02 07:11:49 +00:00
eebc8a1bc5
#include <mmintrin.h>
extern __m64 C;
void baz(__v2si *A, __v2si *B)
{
*A = C;
_mm_empty();
}
We get this:
_baz:
call "L1$pb"
"L1$pb":
popl %eax
movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
movq (%eax), %mm0
movl 4(%esp), %eax
movq %mm0, (%eax)
emms
ret
GCC gives us this:
_baz:
pushl %ebx
call L3
"L00000000001$pb":
L3:
popl %ebx
subl $8, %esp
movl L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
movl (%eax), %edx
movl 4(%eax), %ecx
movl 16(%esp), %eax
movl %edx, (%eax)
movl %ecx, 4(%eax)
emms
addl $8, %esp
popl %ebx
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35351 91177308-0d34-0410-b5e6-96231b3b80d8
252 lines
11 KiB
TableGen
252 lines
11 KiB
TableGen
//===- Intrinsics.td - Defines all LLVM intrinsics ---------*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Chris Lattner and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines properties of all LLVM intrinsics.
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//
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//===----------------------------------------------------------------------===//
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include "llvm/CodeGen/ValueTypes.td"
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//===----------------------------------------------------------------------===//
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// Properties we keep track of for intrinsics.
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//===----------------------------------------------------------------------===//
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class IntrinsicProperty;
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// Intr*Mem - Memory properties. An intrinsic is allowed to have exactly one of
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// these properties set. They are listed from the most aggressive (best to use
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// if correct) to the least aggressive. If no property is set, the worst case
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// is assumed (IntrWriteMem).
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// IntrNoMem - The intrinsic does not access memory or have any other side
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// effects. It may be CSE'd deleted if dead, etc.
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def IntrNoMem : IntrinsicProperty;
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// IntrReadArgMem - This intrinsic reads only from memory that one of its
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// arguments points to, but may read an unspecified amount.
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def IntrReadArgMem : IntrinsicProperty;
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// IntrReadMem - This intrinsic reads from unspecified memory, so it cannot be
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// moved across stores. However, it can be reordered otherwise and can be
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// deleted if dead.
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def IntrReadMem : IntrinsicProperty;
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// IntrWriteArgMem - This intrinsic reads and writes only from memory that one
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// of its arguments points to, but may access an unspecified amount. It has no
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// other side effects. This may only be used if the intrinsic doesn't "capture"
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// the argument pointer (e.g. storing it someplace).
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def IntrWriteArgMem : IntrinsicProperty;
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// IntrWriteMem - This intrinsic may read or modify unspecified memory or has
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// other side effects. It cannot be modified by the optimizer. This is the
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// default if the intrinsic has no other Intr*Mem property.
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def IntrWriteMem : IntrinsicProperty;
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//===----------------------------------------------------------------------===//
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// Types used by intrinsics.
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//===----------------------------------------------------------------------===//
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class LLVMType<ValueType vt, string typeval> {
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ValueType VT = vt;
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string TypeVal = typeval;
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}
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class LLVMIntegerType<ValueType VT, int width>
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: LLVMType<VT, "Type::IntegerTyID"> {
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int Width = width;
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}
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class LLVMVectorType<ValueType VT, int numelts, LLVMType elty>
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: LLVMType<VT, "Type::VectorTyID">{
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int NumElts = numelts;
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LLVMType ElTy = elty;
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}
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class LLVMPointerType<LLVMType elty>
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: LLVMType<iPTR, "Type::PointerTyID">{
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LLVMType ElTy = elty;
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}
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class LLVMEmptyStructType
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: LLVMType<OtherVT, "Type::StructTyID">{
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}
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def llvm_void_ty : LLVMType<isVoid, "Type::VoidTyID">;
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def llvm_bool_ty : LLVMIntegerType<i1, 1>;
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def llvm_i8_ty : LLVMIntegerType<i8 , 8>;
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def llvm_i16_ty : LLVMIntegerType<i16, 16>;
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def llvm_i32_ty : LLVMIntegerType<i32, 32>;
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def llvm_i64_ty : LLVMIntegerType<i64, 64>;
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def llvm_float_ty : LLVMType<f32, "Type::FloatTyID">;
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def llvm_double_ty : LLVMType<f64, "Type::DoubleTyID">;
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def llvm_ptr_ty : LLVMPointerType<llvm_i8_ty>; // i8*
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def llvm_ptrptr_ty : LLVMPointerType<llvm_ptr_ty>; // i8**
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def llvm_empty_ty : LLVMEmptyStructType; // { }
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def llvm_descriptor_ty : LLVMPointerType<llvm_empty_ty>; // { }*
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def llvm_v16i8_ty : LLVMVectorType<v16i8,16, llvm_i8_ty>; // 16 x i8
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def llvm_v8i16_ty : LLVMVectorType<v8i16, 8, llvm_i16_ty>; // 8 x i16
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def llvm_v2i64_ty : LLVMVectorType<v2i64, 2, llvm_i64_ty>; // 2 x i64
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def llvm_v2i32_ty : LLVMVectorType<v2i32, 2, llvm_i32_ty>; // 2 x i32
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def llvm_v1i64_ty : LLVMVectorType<v1i64, 1, llvm_i64_ty>; // 1 x i64
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def llvm_v4i32_ty : LLVMVectorType<v4i32, 4, llvm_i32_ty>; // 4 x i32
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def llvm_v4f32_ty : LLVMVectorType<v4f32, 4, llvm_float_ty>; // 4 x float
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def llvm_v2f64_ty : LLVMVectorType<v2f64, 2, llvm_double_ty>;// 2 x double
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// MMX Vector Types
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def llvm_v8i8_ty : LLVMVectorType<v8i8, 8, llvm_i8_ty>; // 8 x i8
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def llvm_v4i16_ty : LLVMVectorType<v4i16, 4, llvm_i16_ty>; // 4 x i16
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def llvm_vararg_ty : LLVMType<isVoid, "...">; // vararg
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//===----------------------------------------------------------------------===//
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// Intrinsic Definitions.
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//===----------------------------------------------------------------------===//
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// Intrinsic class - This is used to define one LLVM intrinsic. The name of the
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// intrinsic definition should start with "int_", then match the LLVM intrinsic
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// name with the "llvm." prefix removed, and all "."s turned into "_"s. For
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// example, llvm.bswap.i16 -> int_bswap_i16.
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//
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// * Types is a list containing the return type and the argument types
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// expected for the intrinsic.
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// * Properties can be set to describe the behavior of the intrinsic.
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//
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class Intrinsic<list<LLVMType> types,
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list<IntrinsicProperty> properties = [],
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string name = ""> {
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string LLVMName = name;
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string TargetPrefix = ""; // Set to a prefix for target-specific intrinsics.
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list<LLVMType> Types = types;
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list<IntrinsicProperty> Properties = properties;
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}
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/// GCCBuiltin - If this intrinsic exactly corresponds to a GCC builtin, this
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/// specifies the name of the builtin. This provides automatic CBE and CFE
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/// support.
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class GCCBuiltin<string name> {
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string GCCBuiltinName = name;
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}
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//===--------------- Variable Argument Handling Intrinsics ----------------===//
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//
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def int_vastart : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [], "llvm.va_start">;
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def int_vacopy : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty], [],
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"llvm.va_copy">;
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def int_vaend : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [], "llvm.va_end">;
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//===------------------- Garbage Collection Intrinsics --------------------===//
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//
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def int_gcroot : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty, llvm_ptr_ty]>;
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def int_gcread : Intrinsic<[llvm_ptr_ty, llvm_ptr_ty, llvm_ptrptr_ty],
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[IntrReadArgMem]>;
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def int_gcwrite : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_ptrptr_ty], [IntrWriteArgMem]>;
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//===--------------------- Code Generator Intrinsics ----------------------===//
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//
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def int_returnaddress : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
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def int_frameaddress : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
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def int_stacksave : Intrinsic<[llvm_ptr_ty], [IntrReadMem]>,
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GCCBuiltin<"__builtin_stack_save">;
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def int_stackrestore : Intrinsic<[llvm_void_ty, llvm_ptr_ty]>,
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GCCBuiltin<"__builtin_stack_restore">;
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def int_prefetch : Intrinsic<[llvm_void_ty, llvm_ptr_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_pcmarker : Intrinsic<[llvm_void_ty, llvm_i32_ty]>;
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def int_readcyclecounter : Intrinsic<[llvm_i64_ty]>;
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//===------------------- Standard C Library Intrinsics --------------------===//
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//
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let Properties = [IntrWriteArgMem] in {
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def int_memcpy_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_memcpy_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i64_ty, llvm_i32_ty]>;
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def int_memmove_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_memmove_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i64_ty, llvm_i32_ty]>;
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def int_memset_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_memset_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
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llvm_i64_ty, llvm_i32_ty]>;
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}
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let Properties = [IntrNoMem] in {
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def int_sqrt_f32 : Intrinsic<[llvm_float_ty , llvm_float_ty]>;
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def int_sqrt_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty]>;
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def int_powi_f32 : Intrinsic<[llvm_float_ty , llvm_float_ty, llvm_i32_ty]>;
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def int_powi_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty, llvm_i32_ty]>;
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}
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// NOTE: these are internal interfaces.
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def int_setjmp : Intrinsic<[llvm_i32_ty , llvm_ptr_ty]>;
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def int_longjmp : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
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def int_sigsetjmp : Intrinsic<[llvm_i32_ty , llvm_ptr_ty, llvm_i32_ty]>;
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def int_siglongjmp : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
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//===-------------------- Bit Manipulation Intrinsics ---------------------===//
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//
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// None of these intrinsics accesses memory at all.
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let Properties = [IntrNoMem] in {
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def int_bswap_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_bswap_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_bswap_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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def int_ctpop_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
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def int_ctpop_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_ctpop_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_ctpop_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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def int_ctlz_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
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def int_ctlz_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_ctlz_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_ctlz_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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def int_cttz_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
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def int_cttz_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_cttz_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_cttz_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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}
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//===------------------------ Debugger Intrinsics -------------------------===//
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//
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def int_dbg_stoppoint : Intrinsic<[llvm_void_ty,
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llvm_i32_ty, llvm_i32_ty,
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llvm_descriptor_ty]>;
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def int_dbg_region_start : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
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def int_dbg_region_end : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
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def int_dbg_func_start : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
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def int_dbg_declare : Intrinsic<[llvm_void_ty, llvm_descriptor_ty,
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llvm_descriptor_ty]>;
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//===------------------ Exception Handling Intrinsics----------------------===//
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//
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def int_eh_exception : Intrinsic<[llvm_ptr_ty]>;
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def int_eh_selector : Intrinsic<[llvm_i32_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_vararg_ty]>;
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def int_eh_filter : Intrinsic<[llvm_i32_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_vararg_ty]>;
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def int_eh_typeid_for : Intrinsic<[llvm_i32_ty, llvm_ptr_ty]>;
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//===----------------------------------------------------------------------===//
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// Target-specific intrinsics
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//===----------------------------------------------------------------------===//
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include "llvm/IntrinsicsPowerPC.td"
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include "llvm/IntrinsicsX86.td"
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