From: Daniel Jacobowitz Date: Sun, 27 Aug 2006 11:42:14 +0000 (+0100) Subject: [ARM] 3758/1: Preserve signalling NaNs in conversion X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b53a2b41f156a9c9b62c14502037cbc15bc08b54;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [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 Signed-off-by: Russell King --- 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)