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[PULL 26/72] target/sparc: Set Float3NaNPropRule explicitly
From: |
Peter Maydell |
Subject: |
[PULL 26/72] target/sparc: Set Float3NaNPropRule explicitly |
Date: |
Wed, 11 Dec 2024 16:19:18 +0000 |
Set the Float3NaNPropRule explicitly for SPARC, and remove the
ifdef from pickNaNMulAdd().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-22-peter.maydell@linaro.org
---
target/sparc/cpu.c | 2 ++
fpu/softfloat-specialize.c.inc | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index 61f2d3fbf23..0f2997a85e6 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -814,6 +814,8 @@ static void sparc_cpu_realizefn(DeviceState *dev, Error
**errp)
* the CPU state struct so it won't get zeroed on reset.
*/
set_float_2nan_prop_rule(float_2nan_prop_s_ba, &env->fp_status);
+ /* For fused-multiply add, prefer SNaN over QNaN, then C->B->A */
+ set_float_3nan_prop_rule(float_3nan_prop_s_cba, &env->fp_status);
/* For inf * 0 + NaN, return the input NaN */
set_float_infzeronan_rule(float_infzeronan_dnan_never, &env->fp_status);
diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc
index 8a36280df1a..c4d8d085a98 100644
--- a/fpu/softfloat-specialize.c.inc
+++ b/fpu/softfloat-specialize.c.inc
@@ -511,8 +511,6 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass
b_cls, FloatClass c_cls,
} else {
rule = float_3nan_prop_s_cab;
}
-#elif defined(TARGET_SPARC)
- rule = float_3nan_prop_s_cba;
#elif defined(TARGET_XTENSA)
if (status->use_first_nan) {
rule = float_3nan_prop_abc;
--
2.34.1
- [PULL 18/72] target/hppa: Set FloatInfZeroNaNRule explicitly, (continued)
- [PULL 18/72] target/hppa: Set FloatInfZeroNaNRule explicitly, Peter Maydell, 2024/12/11
- [PULL 20/72] softfloat: Allow runtime choice of NaN propagation for muladd, Peter Maydell, 2024/12/11
- [PULL 23/72] target/loongarch: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 24/72] target/ppc: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 22/72] target/arm: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 21/72] tests/fp: Explicitly set 3-NaN propagation rule, Peter Maydell, 2024/12/11
- [PULL 27/72] target/mips: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 28/72] target/xtensa: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 30/72] target/hppa: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 25/72] target/s390x: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 26/72] target/sparc: Set Float3NaNPropRule explicitly,
Peter Maydell <=
- [PULL 29/72] target/i386: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/11
- [PULL 33/72] softfloat: Create floatx80 default NaN from parts64_default_nan, Peter Maydell, 2024/12/11
- [PULL 31/72] fpu: Remove use_first_nan field from float_status, Peter Maydell, 2024/12/11
- [PULL 32/72] target/m68k: Don't pass NULL float_status to floatx80_default_nan(), Peter Maydell, 2024/12/11
- [PULL 34/72] target/loongarch: Use normal float_status in fclass_s and fclass_d helpers, Peter Maydell, 2024/12/11
- [PULL 35/72] target/m68k: In frem helper, initialize local float_status from env->fp_status, Peter Maydell, 2024/12/11
- [PULL 36/72] target/m68k: Init local float_status from env fp_status in gdb get/set reg, Peter Maydell, 2024/12/11
- [PULL 37/72] target/sparc: Initialize local scratch float_status from env->fp_status, Peter Maydell, 2024/12/11
- [PULL 38/72] target/ppc: Use env->fp_status in helper_compute_fprf functions, Peter Maydell, 2024/12/11
- [PULL 39/72] target/arm: Copy entire float_status in is_ebf, Peter Maydell, 2024/12/11