From 86882c95f47d703adfeb46c40cec09e7b98b1fe6 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 1 Apr 2014 08:26:10 +0000 Subject: [PATCH] * doc/invoke.texi (mapp-regs): Clarify. From-SVN: r208975 --- gcc/ChangeLog | 4 ++++ gcc/doc/invoke.texi | 5 +++-- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 36ec2a5eb9bb..60da2b1f9c15 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2014-04-01 Sebastian Huber + + * doc/invoke.texi (mapp-regs): Clarify. + 2014-03-23 Eric Botcazou PR rtl-optimization/60601 diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index b52a084e12e5..625fef25a6ca 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -18309,8 +18309,9 @@ 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 -- 2.47.2