Hi,
-free has been enabled by default for -O2 and above on AArch64 a while
ago. This patch updates the relevant part of user manual to reflect the
fact.
OK for stage-4?
Thanks,
Yufeng
gcc/
* doc/invoke.texi (free): Document AArch64.diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 4c183a3..9a41750 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -7414,7 +7414,7 @@ Attempt to remove redundant extension instructions. This
is especially
helpful for the x86-64 architecture, which implicitly zero-extends in 64-bit
registers after writing to their lower 32-bit half.
-Enabled for x86 at levels @option{-O2}, @option{-O3}.
+Enabled for AArch64 and x86 at levels @option{-O2}, @option{-O3}.
@item -flive-range-shrinkage
@opindex flive-range-shrinkage
