diff options
| author | danielh <danielh@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-09-28 05:30:31 +0000 |
|---|---|---|
| committer | danielh <danielh@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-09-28 05:30:31 +0000 |
| commit | a89e7400d16ff69c8830e8d5783c8ce6f14e310c (patch) | |
| tree | e7d3519f0ef06cb3b01f1a57b907f9aee0b604bc /gcc/doc | |
| parent | 61ee8f93796af2f484e44029c3f1f4a8988ea74a (diff) | |
| download | gcc-a89e7400d16ff69c8830e8d5783c8ce6f14e310c.tar.gz | |
2015-09-28 Daniel Cederman <cederman@gaisler.com>
Make muser-mode the default for LEON3
The muser-mode flag causes the CASA instruction for LEON3 to use the
user mode ASI. This is the correct behavior for almost all LEON3 targets.
For this reason it makes sense to make user mode the default.
gcc/
* config/sparc/sparc.opt: Rename mask from USER_MODE to SV_MODE
and make it inverse to change default
* config/sparc/sync.md: Only use supervisor ASI for CASA when in
supervisor mode
* doc/invoke.texi: Document change of default
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228184 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 407eb8e8fa1..50cc52010ff 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -21299,8 +21299,8 @@ in a performance loss, especially for floating-point code. @opindex muser-mode @opindex mno-user-mode Do not generate code that can only run in supervisor mode. This is relevant -only for the @code{casa} instruction emitted for the LEON3 processor. The -default is @option{-mno-user-mode}. +only for the @code{casa} instruction emitted for the LEON3 processor. This +is the default. @item -mno-faster-structs @itemx -mfaster-structs |