[PATCH] D46648: [SimplifyLibcalls] Optimize string concats using s(n)printf

Dávid Bolvanský via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed May 9 10:17:25 PDT 2018


xbolva00 created this revision.
xbolva00 added reviewers: bkramer, efriedma.
Herald added a subscriber: llvm-commits.

sprintf(buf, "%s%s", buf, str) -> strcat(buf, str)

snprintf(buf, n, "%s%s", buf, str) -> strncat(buf, str, n)


Repository:
  rL LLVM

https://reviews.llvm.org/D46648

Files:
  include/llvm/Transforms/Utils/BuildLibCalls.h
  lib/Transforms/Utils/BuildLibCalls.cpp
  lib/Transforms/Utils/SimplifyLibCalls.cpp
  test/Transforms/InstCombine/concat.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D46648.145951.patch
Type: text/x-patch
Size: 10529 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20180509/b954cad1/attachment.bin>


More information about the llvm-commits mailing list