From: Ben Gras <ben@minix3.org>
Date: Mon, 11 Feb 2013 01:02:08 +0000 (+0100)
Subject: __aeabi_ldivmod: fix sign logic
X-Git-Tag: v3.2.1~13
X-Git-Url: http://zhaoyanbai.com/repos/?a=commitdiff_plain;h=de57a53027e3fcbfc06e98a02c3ac6f6a62be000;p=minix.git

__aeabi_ldivmod: fix sign logic

	. signed 64-bit divide incorrectly tested for sign compensation
	  bits in the NEG (R5) register, causing the signedness of the
	  quotient and modulus to be wrong for negative numerators.

Fixes test45 on ARM.

Change-Id: Id0df8fd97ea67cd0722db8cdd70a07e01b3d7870
---

diff --git a/common/lib/libc/arch/arm/quad/__aeabi_ldivmod.S b/common/lib/libc/arch/arm/quad/__aeabi_ldivmod.S
index 041ce8558..259ff63fe 100644
--- a/common/lib/libc/arch/arm/quad/__aeabi_ldivmod.S
+++ b/common/lib/libc/arch/arm/quad/__aeabi_ldivmod.S
@@ -80,9 +80,9 @@ ENTRY(__aeabi_ldivmod)
 
 	pop	{r2, r3}
 	tst	NEG, #2		/* does remainder need to be negative? */
-	bleq	.Lnegate_b
+	blne	.Lnegate_b
 	tst	NEG, #1		/* does quotient need to be negative? */
-	bleq	.Lnegate_a
+	blne	.Lnegate_a
 	pop	{r4-r5, sl, lr}
 	RET