From 545e993b8b0c39c9622924cd6467e3adc9b075a4 Mon Sep 17 00:00:00 2001 From: Jinsong Ji Date: Thu, 22 Aug 2019 13:44:47 +0000 Subject: [SlotIndexes] Add print-slotindexes to disable printing slotindexes Summary: When we print the IR with --print-after/before-*, SlotIndexes will be printed whenever available (We haven't freed it). This introduces some noises when we try to compare the IR among different optimizations. eg: -print-before=machine-cp will print SlotIndexes for 1st machine-cp pass, but NOT for 2nd machine-cp; -print-after=machine-cp will NOT print SlotIndexes for both machine-cp passes. So SlotIndexes in 1st pass introduce noises when differing these IRs. This patch introduces an option to hide indexes. Reviewers: stoklund, thegameg, qcolombet Reviewed By: thegameg Subscribers: hiraditya, arphaman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D66500 llvm-svn: 369650 --- llvm/lib/CodeGen/MachineBasicBlock.cpp | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp') diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp index f57a0424d33..a312d14dd45 100644 --- a/llvm/lib/CodeGen/MachineBasicBlock.cpp +++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp @@ -39,6 +39,12 @@ using namespace llvm; #define DEBUG_TYPE "codegen" +static cl::opt PrintSlotIndexes( + "print-slotindexes", + cl::desc("When printing machine IR, annotate instructions and blocks with " + "SlotIndexes when available"), + cl::init(true), cl::Hidden); + MachineBasicBlock::MachineBasicBlock(MachineFunction &MF, const BasicBlock *B) : BB(B), Number(-1), xParent(&MF) { Insts.Parent = this; @@ -291,7 +297,7 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST, return; } - if (Indexes) + if (Indexes && PrintSlotIndexes) OS << Indexes->getMBBStartIdx(this) << '\t'; OS << "bb." << getNumber(); @@ -402,7 +408,7 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST, bool IsInBundle = false; for (const MachineInstr &MI : instrs()) { - if (Indexes) { + if (Indexes && PrintSlotIndexes) { if (Indexes->hasIndex(MI)) OS << Indexes->getInstructionIndex(MI); OS << '\t'; -- cgit v1.2.3