From cded08eab490127092ab6807c8a8f778d69e5d18 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 1 Apr 2014 08:20:42 +0000 Subject: [PATCH] * doc/invoke.texi (mapp-regs): Clarify. From-SVN: r208973 --- gcc/ChangeLog | 4 ++++ gcc/doc/invoke.texi | 5 +++-- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 46e1072671f6..ec68b1429137 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2014-04-01 Sebastian Huber + + * doc/invoke.texi (mapp-regs): Clarify. + 2014-03-31 Ulrich Drepper * config/i386/avx512fintrin.h (__v32hi): Define type. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 78ddde07f9bc..eca4e8f1afa0 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 -- 2.47.3