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authorDaniel Jacobowitz <drow@false.org>2006-08-27 12:42:14 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-08-27 12:42:14 +0100
commitb53a2b41f156a9c9b62c14502037cbc15bc08b54 (patch)
tree7813d3dfbbb9fe97a8a093c837d7ee5a6746c4ae /arch/arm/vfp
parentc29ecac18cb740ae845db14963ac586c53962453 (diff)
[ARM] 3758/1: Preserve signalling NaNs in conversion
Patch from Daniel Jacobowitz The fcvtds and fcvtsd instructions were generating a qnan bit pattern for both quiet and signalling NaNs. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/vfp')
-rw-r--r--arch/arm/vfp/vfpdouble.c2
-rw-r--r--arch/arm/vfp/vfpsingle.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c
index 021581680e9..04bd3425b29 100644
--- a/arch/arm/vfp/vfpdouble.c
+++ b/arch/arm/vfp/vfpdouble.c
@@ -465,7 +465,7 @@ static u32 vfp_double_fcvts(int sd, int unused, int dm, u32 fpscr)
*/
if (tm & (VFP_INFINITY|VFP_NAN)) {
vsd.exponent = 255;
- if (tm & VFP_NAN)
+ if (tm == VFP_QNAN)
vsd.significand |= VFP_SINGLE_SIGNIFICAND_QNAN;
goto pack_nan;
} else if (tm & VFP_ZERO)
diff --git a/arch/arm/vfp/vfpsingle.c b/arch/arm/vfp/vfpsingle.c
index 5bbd5d1c8a5..78d7cac5f36 100644
--- a/arch/arm/vfp/vfpsingle.c
+++ b/arch/arm/vfp/vfpsingle.c
@@ -506,7 +506,7 @@ static u32 vfp_single_fcvtd(int dd, int unused, s32 m, u32 fpscr)
*/
if (tm & (VFP_INFINITY|VFP_NAN)) {
vdd.exponent = 2047;
- if (tm & VFP_NAN)
+ if (tm == VFP_QNAN)
vdd.significand |= VFP_DOUBLE_SIGNIFICAND_QNAN;
goto pack_nan;
} else if (tm & VFP_ZERO)