[PATCH] Fix another of the PR65930 reduction cases

[Richard Biener]

On Tue, 29 Oct 2019, Bernhard Reutner-Fischer wrote:

> On 29 October 2019 10:36:47 CET, Richard Biener <rguenther@suse.de> wrote:
> >On Tue, 29 Oct 2019, Bernhard Reutner-Fischer wrote:
> >
> 
> 
> >Unfortunately it's not semantically equivalent ;)  I could indeed
> >break once cnt reaches 2 but not sure if it's worth the ugliness ;)
> 
> I managed to read cnt == 1 ;) So yep, not worth it.
> 
> >> btw, it seems there are two typos in the docs.
> >BREAK_FROM_SAFE_IMM_USE
> >> was removed 2006-04-27, and "iter" should be "iterator":
> >> 
> >> diff --git a/gcc/doc/tree-ssa.texi b/gcc/doc/tree-ssa.texi
> >> index 9baabf99440..97a7b8e0263 100644
> >> --- a/gcc/doc/tree-ssa.texi
> >> +++ b/gcc/doc/tree-ssa.texi
> >> @@ -392,7 +392,7 @@ to do this :
> >>    FOR_EACH_IMM_USE_STMT (stmt, iterator, ssa_var)
> >>      @{
> >>        if (stmt == last_stmt)
> >> -        BREAK_FROM_SAFE_IMM_USE (iter);
> >> +        BREAK_FROM_IMM_USE_STMT (iterator);
> >>  
> >>        FOR_EACH_IMM_USE_ON_STMT (imm_use_p, iterator)
> >>          SET_USE (imm_use_p, ssa_var_2);
> >> 
> >
> >That change is OK as obvious if you want to fix it ;)
> 
> My tree is way old ATM so if one of you folks could do the honours I'd be grateful.

Looks like the macro was already fixed.  Fixed the iterator.

Committed.

Richard.

2019-10-29  Richard Biener  <rguenther@suse.de>

	* doc/tree-ssa.texi (Immediate Uses): Fix FOR_EACH_IMM_USE_STMT
	example.

Index: gcc/doc/tree-ssa.texi
===================================================================
--- gcc/doc/tree-ssa.texi	(revision 277567)
+++ gcc/doc/tree-ssa.texi	(working copy)
@@ -392,7 +392,7 @@ to do this :
   FOR_EACH_IMM_USE_STMT (stmt, iterator, ssa_var)
     @{
       if (stmt == last_stmt)
-        BREAK_FROM_IMM_USE_STMT (iter);
+        BREAK_FROM_IMM_USE_STMT (iterator);
 
       FOR_EACH_IMM_USE_ON_STMT (imm_use_p, iterator)
         SET_USE (imm_use_p, ssa_var_2);