Hi Segher,
Working through my backlog of Darwin patches … this one is needed on trunk and
6.x
(although it’s marked as rtl-optimization, it actually prevents bootstrap on
the branch with
Java enabled). Therefore, if possible, I’d like to get this in before the 6.3
freeze.
----
The Darwin pic base loads (and reloads for non-local-gotos) are not validly
copied (since the pic base label would be duplicated). Thus, this patch marks
them accordingly.
OK for trunk?
OK for GCC-6 branch?
thanks,
Iain
gcc/
2016-12-09 Iain Sandoe <i...@codesourcery.com>
PR rtl-optimization/71496
* config/rs6000/darwin.md (load_macho_picbase_si): Mark as non-
copyable. (load_macho_picbase_di, reload_macho_picbase_si,
reload_macho_picbase_di): Likewise.
---
gcc/config/rs6000/darwin.md | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/gcc/config/rs6000/darwin.md b/gcc/config/rs6000/darwin.md
index 57ce30e..bae8b2b 100644
--- a/gcc/config/rs6000/darwin.md
+++ b/gcc/config/rs6000/darwin.md
@@ -265,6 +265,7 @@ You should have received a copy of the GNU General Public
License
return "bcl 20,31,%0\\n%0:";
}
[(set_attr "type" "branch")
+ (set_attr "cannot_copy" "yes")
(set_attr "length" "4")])
(define_insn "load_macho_picbase_di"
@@ -281,6 +282,7 @@ You should have received a copy of the GNU General Public
License
return "bcl 20,31,%0\\n%0:";
}
[(set_attr "type" "branch")
+ (set_attr "cannot_copy" "yes")
(set_attr "length" "4")])
(define_expand "macho_correct_pic"
@@ -416,6 +418,7 @@ You should have received a copy of the GNU General Public
License
return "bcl 20,31,%0\\n%0:";
}
[(set_attr "type" "branch")
+ (set_attr "cannot_copy" "yes")
(set_attr "length" "4")])
(define_insn "reload_macho_picbase_di"
@@ -439,6 +442,7 @@ You should have received a copy of the GNU General Public
License
return "bcl 20,31,%0\\n%0:";
}
[(set_attr "type" "branch")
+ (set_attr "cannot_copy" "yes")
(set_attr "length" "4")])
;; We need to restore the PIC register, at the site of nonlocal label.
--
2.8.1
