2 files changed, 15 insertions, 2 deletions

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 20ef67f7586..67d61c84734 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -3680,13 +3680,14 @@ also turns on the following optimization flags:
 -fgcse   -fgcse-lm   -fgcse-sm @gol
 -fdelete-null-pointer-checks @gol
 -fexpensive-optimizations @gol
--fregmove @gol
+-fregmove -@gol
 -fschedule-insns  -fschedule-insns2 @gol
 -fsched-interblock  -fsched-spec @gol
 -fcaller-saves @gol
 -fpeephole2 @gol
 -freorder-blocks  -freorder-functions @gol
 -fstrict-aliasing @gol
+-funit-at-a-time @gol
 -falign-functions  -falign-jumps @gol
 -falign-loops  -falign-labels}
 
@@ -3697,7 +3698,7 @@ invoking @option{-O2} on programs that use computed gotos.
 @opindex O3
 Optimize yet more.  @option{-O3} turns on all optimizations specified by
 @option{-O2} and also turns on the @option{-finline-functions},
-@option{-funit-at-a-time} and @option{-frename-registers} options.
+@option{-fweb} and @option{-frename-registers} options.
 
 @item -O0
 @opindex O0
diff --git a/gcc/doc/passes.texi b/gcc/doc/passes.texi
index ed32827238a..ad07f60841e 100644
--- a/gcc/doc/passes.texi
+++ b/gcc/doc/passes.texi
@@ -366,6 +366,18 @@ The option @option{-dG} causes a debugging dump of the RTL code after
 this pass.  This dump file's name is made by appending @samp{.bypass}
 to the input file name.
 
+@cindex web construction
+@item
+Simple optimization pass that splits independent uses of each pseudo
+increasing effect of other optimizations.  This can improve effect of the
+other transformation, such as CSE or register allocation.
+Its source files are @file{web.c}.
+
+@opindex dZ
+The option @option{-dZ} causes a debugging dump of the RTL code after
+this pass.  This dump file's name is made by appending @samp{.web} to
+the input file name.
+
 @item
 @opindex frerun-cse-after-loop
 If @option{-frerun-cse-after-loop} was enabled, a second common