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comparison lib/Target/NVPTX/NVPTXPeephole.cpp @ 134:3a76565eade5 LLVM5.0.1

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update 5.0.1
author mir3636
date Sat, 17 Feb 2018 09:57:20 +0900
parents 803732b1fca8
children c2174574ed3a
comparison
equal deleted inserted replaced
133:c60214abe0e8 134:3a76565eade5
20 // cvta.to.local instructions. Performance can be improved if we avoid casting 20 // cvta.to.local instructions. Performance can be improved if we avoid casting
21 // address back and forth and directly calculate local address based on %SPL. 21 // address back and forth and directly calculate local address based on %SPL.
22 // This peephole pass optimizes these cases, for example 22 // This peephole pass optimizes these cases, for example
23 // 23 //
24 // It will transform the following pattern 24 // It will transform the following pattern
25 // %vreg0<def> = LEA_ADDRi64 %VRFrame, 4 25 // %0 = LEA_ADDRi64 %VRFrame, 4
26 // %vreg1<def> = cvta_to_local_yes_64 %vreg0 26 // %1 = cvta_to_local_yes_64 %0
27 // 27 //
28 // into 28 // into
29 // %vreg1<def> = LEA_ADDRi64 %VRFrameLocal, 4 29 // %1 = LEA_ADDRi64 %VRFrameLocal, 4
30 // 30 //
31 // %VRFrameLocal is the virtual register name of %SPL 31 // %VRFrameLocal is the virtual register name of %SPL
32 // 32 //
33 //===----------------------------------------------------------------------===// 33 //===----------------------------------------------------------------------===//
34 34
35 #include "NVPTX.h" 35 #include "NVPTX.h"
36 #include "llvm/CodeGen/MachineFunctionPass.h" 36 #include "llvm/CodeGen/MachineFunctionPass.h"
37 #include "llvm/CodeGen/MachineInstrBuilder.h" 37 #include "llvm/CodeGen/MachineInstrBuilder.h"
38 #include "llvm/CodeGen/MachineRegisterInfo.h" 38 #include "llvm/CodeGen/MachineRegisterInfo.h"
39 #include "llvm/Target/TargetInstrInfo.h" 39 #include "llvm/CodeGen/TargetInstrInfo.h"
40 #include "llvm/Target/TargetRegisterInfo.h" 40 #include "llvm/CodeGen/TargetRegisterInfo.h"
41 41
42 using namespace llvm; 42 using namespace llvm;
43 43
44 #define DEBUG_TYPE "nvptx-peephole" 44 #define DEBUG_TYPE "nvptx-peephole"
45 45
123 } 123 }
124 Root.eraseFromParentAndMarkDBGValuesForRemoval(); 124 Root.eraseFromParentAndMarkDBGValuesForRemoval();
125 } 125 }
126 126
127 bool NVPTXPeephole::runOnMachineFunction(MachineFunction &MF) { 127 bool NVPTXPeephole::runOnMachineFunction(MachineFunction &MF) {
128 if (skipFunction(*MF.getFunction())) 128 if (skipFunction(MF.getFunction()))
129 return false; 129 return false;
130 130
131 bool Changed = false; 131 bool Changed = false;
132 // Loop over all of the basic blocks. 132 // Loop over all of the basic blocks.
133 for (auto &MBB : MF) { 133 for (auto &MBB : MF) {