[llvm] ce294ff - MachineCSE.cpp - use auto const& iterator in for-range loop to avoid copies. NFCI.
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 21 08:56:03 PDT 2020
Author: Simon Pilgrim
Date: 2020-09-21T16:54:26+01:00
New Revision: ce294ff8cddf110cefd5955cf30c575c7838b452
URL: https://github.com/llvm/llvm-project/commit/ce294ff8cddf110cefd5955cf30c575c7838b452
DIFF: https://github.com/llvm/llvm-project/commit/ce294ff8cddf110cefd5955cf30c575c7838b452.diff
LOG: MachineCSE.cpp - use auto const& iterator in for-range loop to avoid copies. NFCI.
Added:
Modified:
llvm/lib/CodeGen/MachineCSE.cpp
Removed:
################################################################################
diff --git a/llvm/lib/CodeGen/MachineCSE.cpp b/llvm/lib/CodeGen/MachineCSE.cpp
index 09531276bc10..d3eca3ac4128 100644
--- a/llvm/lib/CodeGen/MachineCSE.cpp
+++ b/llvm/lib/CodeGen/MachineCSE.cpp
@@ -777,11 +777,11 @@ bool MachineCSE::isPRECandidate(MachineInstr *MI) {
MI->getNumExplicitDefs() != 1)
return false;
- for (auto def : MI->defs())
+ for (const auto &def : MI->defs())
if (!Register::isVirtualRegister(def.getReg()))
return false;
- for (auto use : MI->uses())
+ for (const auto &use : MI->uses())
if (use.isReg() && !Register::isVirtualRegister(use.getReg()))
return false;
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