commit ca22d427b94de946d4ef32b8acbdfb7e62e7cfa4
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 01b8ba6b94791c2bcc898bcf34d39516a53dea10
parent 5647e89f5a6369836b08212c14b8ff42db8e82d2

[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

llvm-svn: 332452

llvm/unittests/Analysis/TargetLibraryInfoTest.cpp

diff --git a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
index 0c8ba9e..ec0f89a 100644
--- a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
+++ b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp
@@ -161,8 +161,10 @@
     "declare i32 @ffsl(i64)\n"
     "declare i32 @ffsll(i64)\n"
     "declare i32 @fgetc(%struct*)\n"
+    "declare i32 @fgetc_unlocked(%struct*)\n"
     "declare i32 @fgetpos(%struct*, i64*)\n"
     "declare i8* @fgets(i8*, i32, %struct*)\n"
+    "declare i8* @fgets_unlocked(i8*, i32, %struct*)\n"
     "declare i32 @fileno(%struct*)\n"
     "declare void @flockfile(%struct*)\n"
     "declare double @floor(double)\n"
@@ -182,7 +184,9 @@
     "declare x86_fp80 @fmodl(x86_fp80, x86_fp80)\n"
     "declare i32 @fprintf(%struct*, i8*, ...)\n"
     "declare i32 @fputc(i32, %struct*)\n"
+    "declare i32 @fputc_unlocked(i32, %struct*)\n"
     "declare i64 @fread(i8*, i64, i64, %struct*)\n"
+    "declare i64 @fread_unlocked(i8*, i64, i64, %struct*)\n"
     "declare void @free(i8*)\n"
     "declare double @frexp(double, i32*)\n"
     "declare float @frexpf(float, i32*)\n"
@@ -199,6 +203,7 @@
     "declare i32 @getc(%struct*)\n"
     "declare i32 @getc_unlocked(%struct*)\n"
     "declare i32 @getchar()\n"
+    "declare i32 @getchar_unlocked()\n"
     "declare i8* @getenv(i8*)\n"
     "declare i32 @getitimer(i32, %struct*)\n"
     "declare i32 @getlogin_r(i8*, i64)\n"
@@ -250,7 +255,9 @@
     "declare x86_fp80 @powl(x86_fp80, x86_fp80)\n"
     "declare i32 @printf(i8*, ...)\n"
     "declare i32 @putc(i32, %struct*)\n"
+    "declare i32 @putc_unlocked(i32, %struct*)\n"
     "declare i32 @putchar(i32)\n"
+    "declare i32 @putchar_unlocked(i32)\n"
     "declare i32 @puts(i8*)\n"
     "declare void @qsort(i8*, i64, i64, i32 (i8*, i8*)*)\n"
     "declare i64 @readlink(i8*, i8*, i64)\n"
@@ -347,8 +354,10 @@
     "declare %struct* @fdopen(i32, i8*)\n"
     "declare %struct* @fopen(i8*, i8*)\n"
     "declare i32 @fputs(i8*, %struct*)\n"
+    "declare i32 @fputs_unlocked(i8*, %struct*)\n"
     "declare i32 @fstat(i32, %struct*)\n"
     "declare i64 @fwrite(i8*, i64, i64, %struct*)\n"
+    "declare i64 @fwrite_unlocked(i8*, i64, i64, %struct*)\n"
     "declare i32 @lchown(i8*, i32, i32)\n"
     "declare i32 @lstat(i8*, %struct*)\n"
     "declare i64 @mktime(%struct*)\n"