[Polly] Replace use of std::stringstream. NFC.
authorMichael Kruse <llvm-project@meinersbur.de>
Mon, 9 Mar 2020 16:15:14 +0000 (11:15 -0500)
committerMichael Kruse <llvm-project@meinersbur.de>
Mon, 9 Mar 2020 16:35:34 +0000 (11:35 -0500)
commit0e93f3b0a06fc470e37b5be99734f5105ba11232
tree3c1f0572b0148bec9e953574d094fe3d958053b0
parentd1186fcb0428437b07390b6664a30829a0e5701e
[Polly] Replace use of std::stringstream. NFC.

Use of std::-style (io)streams is discouraged in the LLVM coding style
(https://llvm.org/docs/CodingStandards.html#include-iostream-is-forbidden).
Replace with a use of llvm::Twine (which uses llvm::raw_ostream behind
the scenes).
polly/lib/CodeGen/PerfMonitor.cpp