From 9b0737858b2b68c3a4d1e0611f2732679c997c6d Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 17 Dec 2021 17:57:14 +0100 Subject: [PATCH 02/21] softfloat: Add flag specific to Inf - Inf MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit PowerPC has this flag, and it's easier to compute it here than after the fact. Upstream-Status: Backport [https://git.qemu.org/?p=qemu.git;a=commit;h=ba11446c40903b9d97fb75a078d43fee6444d3b6] Signed-off-by: Richard Henderson Message-Id: <20211119160502.17432-3-richard.henderson@linaro.org> Signed-off-by: Cédric Le Goater Signed-off-by: Xiangyu Chen --- fpu/softfloat-parts.c.inc | 3 ++- include/fpu/softfloat-types.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index 41d4b17e41..eb2b475ca4 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -354,7 +354,7 @@ static FloatPartsN *partsN(addsub)(FloatPartsN *a, FloatPartsN *b, return a; } /* Inf - Inf */ - float_raise(float_flag_invalid, s); + float_raise(float_flag_invalid | float_flag_invalid_isi, s); parts_default_nan(a, s); return a; } @@ -494,6 +494,7 @@ static FloatPartsN *partsN(muladd)(FloatPartsN *a, FloatPartsN *b, if (ab_mask & float_cmask_inf) { if (c->cls == float_class_inf && a->sign != c->sign) { + float_raise(float_flag_invalid | float_flag_invalid_isi, s); goto d_nan; } goto return_inf; diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h index 65a43aff59..eaa12e1e00 100644 --- a/include/fpu/softfloat-types.h +++ b/include/fpu/softfloat-types.h @@ -152,6 +152,7 @@ enum { float_flag_inexact = 0x0010, float_flag_input_denormal = 0x0020, float_flag_output_denormal = 0x0040, + float_flag_invalid_isi = 0x0080, /* inf - inf */ }; /* -- 2.17.1