From 346e348af5740db3660c84490d2c1bbba7c570e5 Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Fri, 3 May 2013 22:06:41 +0000 Subject: I was wrong in my testing. There isn't a speedup when using unbuffered I/O. It slows it down in fact. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@181060 91177308-0d34-0410-b5e6-96231b3b80d8 --- SDKs/darwin/usr/include/stdio.h | 1 - SDKs/linux/usr/include/stdio.h | 1 - lib/profile/GCDAProfiling.c | 3 --- 3 files changed, 5 deletions(-) diff --git a/SDKs/darwin/usr/include/stdio.h b/SDKs/darwin/usr/include/stdio.h index 5bbd8a55b..63b10a86b 100644 --- a/SDKs/darwin/usr/include/stdio.h +++ b/SDKs/darwin/usr/include/stdio.h @@ -74,7 +74,6 @@ size_t fwrite(const void * __restrict, size_t, size_t, FILE * __restrict) size_t fread(void * __restrict, size_t, size_t, FILE * __restrict); long ftell(FILE *); int fseek(FILE *, long, int); -void setbuf(FILE * __restrict, char * __restrict); int snprintf(char * __restrict, size_t, const char * __restrict, ...); diff --git a/SDKs/linux/usr/include/stdio.h b/SDKs/linux/usr/include/stdio.h index 0ca10fabe..7c258d2ac 100644 --- a/SDKs/linux/usr/include/stdio.h +++ b/SDKs/linux/usr/include/stdio.h @@ -38,6 +38,5 @@ extern size_t fwrite(const void * restrict, size_t, size_t, FILE * restrict); extern size_t fread(void * restrict, size_t, size_t, FILE * restrict); extern long ftell(FILE *); extern int fseek(FILE *, long, int); -extern void setbuf(FILE * restrict, char * restrict); #endif /* __STDIO_H__ */ diff --git a/lib/profile/GCDAProfiling.c b/lib/profile/GCDAProfiling.c index 3e0fff25f..653f641f7 100644 --- a/lib/profile/GCDAProfiling.c +++ b/lib/profile/GCDAProfiling.c @@ -194,9 +194,6 @@ void llvm_gcda_start_file(const char *orig_filename, const char version[4]) { } } - /* Make the file I/O unbuffered. */ - setbuf(output_file, (char*)NULL); - /* gcda file, version, stamp LLVM. */ fwrite("adcg", 4, 1, output_file); fwrite(version, 4, 1, output_file); -- cgit v1.2.3