[Bug target/28170] [4.1/4.2 Regression] Wrong result after swap byte in one word when compiled in 64-bit mode

[dje at gcc dot gnu dot org]

------- Comment #7 from dje at gcc dot gnu dot org  2006-06-27 01:40 -------
I think the correct test is something like

Index: rs6000.c
===================================================================
--- rs6000.c    (revision 115003)
+++ rs6000.c    (working copy)
@@ -9794,8 +9794,8 @@
       && INTVAL (startop) > 32
       && (INTVAL (sizeop) + INTVAL (startop) < 64)
       && (INTVAL (sizeop) + INTVAL (startop) > 33)
-      && (INTVAL (sizeop) + INTVAL (startop) + INTVAL (shiftop) < 96)
-      && (INTVAL (sizeop) + INTVAL (startop) + INTVAL (shiftop) >= 64)
+      && (INTVAL (sizeop) + INTVAL (startop) + INTVAL (shiftop) < 64)
+      && (INTVAL (sizeop) + INTVAL (startop) + INTVAL (shiftop) >=32)
       && (64 - (INTVAL (shiftop) & 63)) >= INTVAL (sizeop))
     return 1;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28170