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CodeGen: Push the ModuleSlotTracker through MachineOperands

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Push `ModuleSlotTracker` through `MachineOperand`s, dropping the time
for `llc -print-machineinstrs` on the testcase in PR23865 from ~13
seconds to ~9 seconds.  Now `SlotTracker::processFunctionMetadata()`
accounts for only 8% of the runtime, which seems reasonable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240845 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-06-26 22:06:47 +00:00
parent 982139fde2
commit a08efbfc8e
6 changed files with 63 additions and 37 deletions
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3
include/llvm/CodeGen/MachineOperand.h
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@ -27,6 +27,7 @@ class MachineBasicBlock;
class MachineInstr;
class MachineRegisterInfo;
class MDNode;
class ModuleSlotTracker;
class TargetMachine;
class TargetRegisterInfo;
class hash_code;
@ -218,6 +219,8 @@ public:
void clearParent() { ParentMI = nullptr; }
void print(raw_ostream &os, const TargetRegisterInfo *TRI = nullptr) const;
void print(raw_ostream &os, ModuleSlotTracker &MST,
const TargetRegisterInfo *TRI = nullptr) const;
//===--------------------------------------------------------------------===//
// Accessors that tell you what kind of MachineOperand you're looking at.