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[PATCH 00/11] softfloat: Improve denormal handling
From: |
Richard Henderson |
Subject: |
[PATCH 00/11] softfloat: Improve denormal handling |
Date: |
Wed, 26 May 2021 21:13:54 -0700 |
This attempts to fix the x86 denormal-exception flag, which is the
inverse of the existing float_flag_input_denormal flag. I have not
created a new test case for this yet, fwiw.
While auditing all uses of float_flag_*_denormal, I found some errors
in target/rx and target/mips.
This is based on my current softfloat conversion for floatx80:
Based-on: <20210525150706.294968-1-richard.henderson@linaro.org>
The complete tree may be found at
https://gitlab.com/rth7680/qemu/-/commits/fpu-test-5
r~
Richard Henderson (11):
softfloat: Rename float_flag_input_denormal to
float_flag_iflush_denormal
softfloat: Rename float_flag_output_denormal to
float_flag_oflush_denormal
softfloat: Introduce float_flag_inorm_denormal
softfloat: Introduce float_flag_result_denormal
target/i386: Use float_flag_inorm_denormal
target/rx: Handle the FPSW.DN bit in helper_set_fpsw
target/rx: Use FloatRoundMode in helper_set_fpsw
target/rx: Fix setting of FPSW.CE
target/mips: Drop inline markers from msa_helper.c
target/mips: Do not check MSACSR_FS_MASK in update_msacsr
target/mips: Drop denormal operand to update_msacsr
include/fpu/softfloat-types.h | 18 +-
fpu/softfloat.c | 88 ++++------
target/arm/sve_helper.c | 6 +-
target/arm/vfp_helper.c | 12 +-
target/i386/tcg/fpu_helper.c | 18 +-
target/mips/tcg/msa_helper.c | 298 +++++++++++++++-------------------
target/rx/op_helper.c | 19 ++-
target/tricore/fpu_helper.c | 6 +-
fpu/softfloat-parts.c.inc | 13 +-
9 files changed, 212 insertions(+), 266 deletions(-)
--
2.25.1
- [PATCH 00/11] softfloat: Improve denormal handling,
Richard Henderson <=
- [PATCH 03/11] softfloat: Introduce float_flag_inorm_denormal, Richard Henderson, 2021/05/27
- [PATCH 01/11] softfloat: Rename float_flag_input_denormal to float_flag_iflush_denormal, Richard Henderson, 2021/05/27
- [PATCH 07/11] target/rx: Use FloatRoundMode in helper_set_fpsw, Richard Henderson, 2021/05/27
- [PATCH 02/11] softfloat: Rename float_flag_output_denormal to float_flag_oflush_denormal, Richard Henderson, 2021/05/27
- [PATCH 06/11] target/rx: Handle the FPSW.DN bit in helper_set_fpsw, Richard Henderson, 2021/05/27