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1 //===-- llvm/CodeGen/MachineCombinerPattern.h - Instruction pattern supported by
2 // combiner  ------*- C++ -*-===//
3 //
4 //                     The LLVM Compiler Infrastructure
5 //
6 // This file is distributed under the University of Illinois Open Source
7 // License. See LICENSE.TXT for details.
8 //
9 //===----------------------------------------------------------------------===//
10 //
11 // This file defines instruction pattern supported by combiner
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_CODEGEN_MACHINECOMBINERPATTERN_H
16 #define LLVM_CODEGEN_MACHINECOMBINERPATTERN_H
17 
18 namespace llvm {
19 
20 /// These are instruction patterns matched by the machine combiner pass.
21 enum class MachineCombinerPattern {
22   // These are commutative variants for reassociating a computation chain. See
23   // the comments before getMachineCombinerPatterns() in TargetInstrInfo.cpp.
24   REASSOC_AX_BY,
25   REASSOC_AX_YB,
26   REASSOC_XA_BY,
27   REASSOC_XA_YB,
28 
29   // These are multiply-add patterns matched by the AArch64 machine combiner.
30   MULADDW_OP1,
31   MULADDW_OP2,
32   MULSUBW_OP1,
33   MULSUBW_OP2,
34   MULADDWI_OP1,
35   MULSUBWI_OP1,
36   MULADDX_OP1,
37   MULADDX_OP2,
38   MULSUBX_OP1,
39   MULSUBX_OP2,
40   MULADDXI_OP1,
41   MULSUBXI_OP1,
42   // Floating Point
43   FMULADDS_OP1,
44   FMULADDS_OP2,
45   FMULSUBS_OP1,
46   FMULSUBS_OP2,
47   FMULADDD_OP1,
48   FMULADDD_OP2,
49   FMULSUBD_OP1,
50   FMULSUBD_OP2,
51   FMLAv1i32_indexed_OP1,
52   FMLAv1i32_indexed_OP2,
53   FMLAv1i64_indexed_OP1,
54   FMLAv1i64_indexed_OP2,
55   FMLAv2f32_OP2,
56   FMLAv2f32_OP1,
57   FMLAv2f64_OP1,
58   FMLAv2f64_OP2,
59   FMLAv2i32_indexed_OP1,
60   FMLAv2i32_indexed_OP2,
61   FMLAv2i64_indexed_OP1,
62   FMLAv2i64_indexed_OP2,
63   FMLAv4f32_OP1,
64   FMLAv4f32_OP2,
65   FMLAv4i32_indexed_OP1,
66   FMLAv4i32_indexed_OP2,
67   FMLSv1i32_indexed_OP2,
68   FMLSv1i64_indexed_OP2,
69   FMLSv2i32_indexed_OP2,
70   FMLSv2i64_indexed_OP2,
71   FMLSv2f32_OP2,
72   FMLSv2f64_OP2,
73   FMLSv4i32_indexed_OP2,
74   FMLSv4f32_OP2
75 };
76 
77 } // end namespace llvm
78 
79 #endif
80