[llvm] ea85345 - [RISCV][NFC] Use raw_svector_ostream to construct key of SubtargetMap (#72964)

[via llvm-commits]

Author: Wang Pengcheng
Date: 2023-12-08T18:34:31+08:00
New Revision: ea85345eb69f751fdfd793016c854605f14f9dfc

URL: https://github.com/llvm/llvm-project/commit/ea85345eb69f751fdfd793016c854605f14f9dfc
DIFF: https://github.com/llvm/llvm-project/commit/ea85345eb69f751fdfd793016c854605f14f9dfc.diff

LOG: [RISCV][NFC] Use raw_svector_ostream to construct key of SubtargetMap (#72964)

To simplify some code.

Added: 
    

Modified: 
    llvm/lib/Target/RISCV/RISCVTargetMachine.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp b/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
index 84239db1971c2..3abdb6003659f 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
@@ -213,13 +213,8 @@ RISCVTargetMachine::getSubtargetImpl(const Function &F) const {
       llvm::bit_floor((RVVBitsMax < 64 || RVVBitsMax > 65536) ? 0 : RVVBitsMax);
 
   SmallString<512> Key;
-  Key += "RVVMin";
-  Key += std::to_string(RVVBitsMin);
-  Key += "RVVMax";
-  Key += std::to_string(RVVBitsMax);
-  Key += CPU;
-  Key += TuneCPU;
-  Key += FS;
+  raw_svector_ostream(Key) << "RVVMin" << RVVBitsMin << "RVVMax" << RVVBitsMax
+                           << CPU << TuneCPU << FS;
   auto &I = SubtargetMap[Key];
   if (!I) {
     // This needs to be done before we create a new subtarget since any