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authorTed Kremenek <kremenek@apple.com>2012-09-10 20:10:37 +0000
committerTed Kremenek <kremenek@apple.com>2012-09-10 20:10:37 +0000
commitdb133151fc405573634877f13da7bcc2e9f2a1cd (patch)
tree9de8e4f036af918f8d5cd5bf7951a2f47a26dff5 /docs/tools/clang.pod
parent3f0ec5209726641782468bd4c7597e79dda78b15 (diff)
downloadclang-db133151fc405573634877f13da7bcc2e9f2a1cd.tar.gz
Remove clang man page reference to -Oz. It's not an option we want people to use, and is around for historical reasons.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163538 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/tools/clang.pod')
-rw-r--r--docs/tools/clang.pod7
1 files changed, 3 insertions, 4 deletions
diff --git a/docs/tools/clang.pod b/docs/tools/clang.pod
index 425a91ef03..10b6bbf445 100644
--- a/docs/tools/clang.pod
+++ b/docs/tools/clang.pod
@@ -7,7 +7,7 @@ clang - the Clang C, C++, and Objective-C compiler
=head1 SYNOPSIS
B<clang> [B<-c>|B<-S>|B<-E>] B<-std=>I<standard> B<-g>
- [B<-O0>|B<-O1>|B<-O2>|B<-Os>|B<-Oz>|B<-O3>|B<-O4>]
+ [B<-O0>|B<-O1>|B<-O2>|B<-Os>|B<-O3>|B<-O4>]
B<-W>I<warnings...> B<-pedantic>
B<-I>I<dir...> B<-L>I<dir...>
B<-D>I<macro[=defn]>
@@ -263,13 +263,12 @@ may not exist on earlier ones.
=over
-=item B<-O0> B<-O1> B<-O2> B<-Os> B<-Oz> B<-O3> B<-O4>
+=item B<-O0> B<-O1> B<-O2> B<-Os> B<-O3> B<-O4>
Specify which optimization level to use. B<-O0> means "no optimization": this
level compiles the fastest and generates the most debuggable code. B<-O2> is a
moderate level of optimization which enables most optimizations. B<-Os> is like
-B<-O2> with extra optimizations to reduce code size. B<-Oz> is like B<-Os>
-(and thus B<-O2>), but reduces code size further. B<-O3> is like B<-O2>,
+B<-O2> with extra optimizations to reduce code size. B<-O3> is like B<-O2>,
except that it enables optimizations that take longer to perform or that may
generate larger code (in an attempt to make the program run faster). On
supported platforms, B<-O4> enables link-time optimization; object files are