cb037efeac20aee0c3dfba39c3387cb0fde26a1b - platform_external_llvm80

commit	cb037efeac20aee0c3dfba39c3387cb0fde26a1b	[log] [tgz]
author	David Bolvansky <david.bolvansky@gmail.com>	Wed May 16 11:39:52 2018 +0000
committer	David Bolvansky <david.bolvansky@gmail.com>	Wed May 16 11:39:52 2018 +0000
tree	c2a7c67be0afccc6c07317ed57e6a3b3558678ff
parent	4e8768feafb9932d68e94d1fd014b80f14793355 [diff]

[SimplifyLibcalls] Replace locked IO with unlocked IO

Summary: If file stream arg is not captured and source is fopen, we could replace IO calls by unlocked IO ("_unlocked" function variants) to gain better speed,

Reviewers: efriedma, RKSimon, spatel, sanjoy, hfinkel, majnemer, lebedev.ri, rja

Reviewed By: rja

Subscribers: rja, srhines, efriedma, lebedev.ri, llvm-commits

Differential Revision: https://reviews.llvm.org/D45736

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332452 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Analysis/TargetLibraryInfo.def[diff]
include/llvm/Transforms/Utils/BuildLibCalls.h[diff]
include/llvm/Transforms/Utils/SimplifyLibCalls.h[diff]
lib/Analysis/TargetLibraryInfo.cpp[diff]
lib/Transforms/Utils/BuildLibCalls.cpp[diff]
lib/Transforms/Utils/SimplifyLibCalls.cpp[diff]
test/Transforms/InferFunctionAttrs/annotate.ll[diff]
test/Transforms/InstCombine/unlocked-stdio.ll[Added - diff]
unittests/Analysis/TargetLibraryInfoTest.cpp[diff]

9 files changed

tree: c2a7c67be0afccc6c07317ed57e6a3b3558678ff