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| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-04-01 08:20:42 +0000 |
|---|---|---|
| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-04-01 08:20:42 +0000 |
| commit | 4f09b43fbec95e8bba1273fc02156f32de8fdc3e (patch) | |
| tree | 0c7159adca77fbe684688d0b8277ebcc0dc0d284 /gcc/doc | |
| parent | 1adaa21ef12b6316fbf72ae85e5f60defc978448 (diff) | |
| download | gcc-4f09b43fbec95e8bba1273fc02156f32de8fdc3e.tar.gz | |
* doc/invoke.texi (mapp-regs): Clarify.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208973 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 78ddde07f9b..eca4e8f1afa 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -20848,8 +20848,9 @@ These @samp{-m} options are supported on the SPARC: @opindex mno-app-regs @opindex mapp-regs Specify @option{-mapp-regs} to generate output using the global registers -2 through 4, which the SPARC SVR4 ABI reserves for applications. This -is the default. +2 through 4, which the SPARC SVR4 ABI reserves for applications. Like the +global register 1, each global register 2 through 4 is then treated as an +allocable register that is clobbered by function calls. This is the default. To be fully SVR4 ABI-compliant at the cost of some performance loss, specify @option{-mno-app-regs}. You should compile libraries and system |