From 237b14f75b93dda14ae3765d7aab4a6aff5c74f3 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 22 Jun 2001 15:59:44 -0700 Subject: [PATCH] invoke.texi (-funsafe-math-optimizations): Document its possible effects at link time. * doc/invoke.texi (-funsafe-math-optimizations): Document its possible effects at link time. From-SVN: r43519 --- gcc/ChangeLog | 5 +++++ gcc/doc/invoke.texi | 4 +++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 057efe45598..711380597c3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-06-22 Richard Henderson + + * doc/invoke.texi (-funsafe-math-optimizations): Document its + possible effects at link time. + 2001-06-22 Diego Novillo * basic-block.h (dump_edge_info): Declare. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index ac7b137f47b..c8b4859f0c2 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -3373,7 +3373,9 @@ sets @option{-fno-math-errno}. @opindex funsafe-math-optimizations Allow optimizations for floating-point arithmetic that (a) assume that arguments and results are valid and (b) may violate IEEE or -ANSI standards. +ANSI standards. When used at link-time, it may include libraries +or startup files that change the default FPU control word or other +similar optimizations. This option should never be turned on by any @option{-O} option since it can result in incorrect output for programs which depend on -- 2.30.2