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[Bug target/28170] [4.1/4.2 Regression] Wrong result after swap byte in one word when compiled in 64-bit mode
- From: "dje at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Jun 2006 01:40:13 -0000
- Subject: [Bug target/28170] [4.1/4.2 Regression] Wrong result after swap byte in one word when compiled in 64-bit mode
- References: <bug-28170-5233@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla 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