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[Qemu-devel] [PATCH v2 16/27] target/arm: Remove floatX_maybe_silence_na
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v2 16/27] target/arm: Remove floatX_maybe_silence_nan from conversions |
Date: |
Fri, 11 May 2018 17:43:00 -0700 |
This is now handled properly by the generic softfloat code.
Signed-off-by: Richard Henderson <address@hidden>
---
target/arm/helper-a64.c | 1 -
target/arm/helper.c | 12 ++----------
2 files changed, 2 insertions(+), 11 deletions(-)
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
index 6f0eb83661..f92bdea732 100644
--- a/target/arm/helper-a64.c
+++ b/target/arm/helper-a64.c
@@ -466,7 +466,6 @@ float32 HELPER(fcvtx_f64_to_f32)(float64 a, CPUARMState
*env)
set_float_rounding_mode(float_round_to_zero, &tstat);
set_float_exception_flags(0, &tstat);
r = float64_to_float32(a, &tstat);
- r = float32_maybe_silence_nan(r, &tstat);
exflags = get_float_exception_flags(&tstat);
if (exflags & float_flag_inexact) {
r = make_float32(float32_val(r) | 1);
diff --git a/target/arm/helper.c b/target/arm/helper.c
index e05c7230d4..db8bbe52a6 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -11348,20 +11348,12 @@ FLOAT_CONVS(ui, d, 64, u)
/* floating point conversion */
float64 VFP_HELPER(fcvtd, s)(float32 x, CPUARMState *env)
{
- float64 r = float32_to_float64(x, &env->vfp.fp_status);
- /* ARM requires that S<->D conversion of any kind of NaN generates
- * a quiet NaN by forcing the most significant frac bit to 1.
- */
- return float64_maybe_silence_nan(r, &env->vfp.fp_status);
+ return float32_to_float64(x, &env->vfp.fp_status);
}
float32 VFP_HELPER(fcvts, d)(float64 x, CPUARMState *env)
{
- float32 r = float64_to_float32(x, &env->vfp.fp_status);
- /* ARM requires that S<->D conversion of any kind of NaN generates
- * a quiet NaN by forcing the most significant frac bit to 1.
- */
- return float32_maybe_silence_nan(r, &env->vfp.fp_status);
+ return float64_to_float32(x, &env->vfp.fp_status);
}
/* VFP3 fixed point conversion. */
--
2.17.0
- Re: [Qemu-devel] [PATCH v2 12/27] target/arm: Use floatX_silence_nan when we have already checked for SNaN, (continued)
- [Qemu-devel] [PATCH v2 11/27] fpu/softfloat: support ARM Alternative half-precision, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 14/27] target/arm: squash FZ16 behaviour for conversions, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 15/27] target/arm: Fix fp_status_f16 tininess before rounding, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 13/27] target/arm: convert conversion helpers to fpst/ahp_flag, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 16/27] target/arm: Remove floatX_maybe_silence_nan from conversions,
Richard Henderson <=
- [Qemu-devel] [PATCH v2 17/27] target/hppa: Remove floatX_maybe_silence_nan from conversions, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 19/27] target/mips: Remove floatX_maybe_silence_nan from conversions, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 18/27] target/m68k: Use floatX_silence_nan when we have already checked for SNaN, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 20/27] target/riscv: Remove floatX_maybe_silence_nan from conversions, Richard Henderson, 2018/05/11
- [Qemu-devel] [PATCH v2 22/27] fpu/softfloat: Use float*_silence_nan in propagateFloat*NaN, Richard Henderson, 2018/05/11