From 6b2d2cec1081a979e0efd6a1e9559e5a01a3c10e Mon Sep 17 00:00:00 2001
From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Date: Thu, 17 Jan 2008 15:21:13 -0800
Subject: alpha: fix conversion from denormal float to double

The trap handler does properly update the fraction,
but not the exponent...

Thanks to Paolo Bonzini for the bug report and the testcase.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Paolo Bonzini <bonzini@gnu.org>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/alpha/math-emu/math.c b/arch/alpha/math-emu/math.c
index ae79dd9..58c2669 100644
--- a/arch/alpha/math-emu/math.c
+++ b/arch/alpha/math-emu/math.c
@@ -225,7 +225,7 @@ alpha_fp_emul (unsigned long pc)
 				FP_UNPACK_SP(SB, &vb);
 				DR_c = DB_c;
 				DR_s = DB_s;
-				DR_e = DB_e;
+				DR_e = DB_e + (1024 - 128);
 				DR_f = SB_f << (52 - 23);
 				goto pack_d;
 			}
-- 
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