target/loongarch: Set FloatInfZeroNaNRule explicitly

Set the FloatInfZeroNaNRule explicitly for the loongarch target.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-13-peter.maydell@linaro.org

diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc
index ad4f7096d098497b10c8db195ff2feb3093d3642..05dec2fcb4c4d9e483ae05cfadd01fed4394aaee 100644 (file)
--- a/fpu/softfloat-specialize.c.inc
+++ b/fpu/softfloat-specialize.c.inc
@@ -489,12 +489,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls,
         /*
          * Temporarily fall back to ifdef ladder
          */
-#if defined(TARGET_HPPA) || \
-    defined(TARGET_LOONGARCH)
-        /*
-         * For LoongArch systems that conform to IEEE754-2008, the (inf,zero,nan)
-         * case sets InvalidOp and returns the input value 'c'
-         */
+#if defined(TARGET_HPPA)
         rule = float_infzeronan_dnan_never;
 #endif
     }

diff --git a/target/loongarch/tcg/fpu_helper.c b/target/loongarch/tcg/fpu_helper.c
index 21bc3b04a9694142e7c1ff3aa8e645e4644735c7..6a2c4b5b1db4b12de26a8c4daec9e3a308e06e34 100644 (file)
--- a/target/loongarch/tcg/fpu_helper.c
+++ b/target/loongarch/tcg/fpu_helper.c
@@ -32,6 +32,11 @@ void restore_fp_status(CPULoongArchState *env)
                             &env->fp_status);
     set_flush_to_zero(0, &env->fp_status);
     set_float_2nan_prop_rule(float_2nan_prop_s_ab, &env->fp_status);
+    /*
+     * For LoongArch systems that conform to IEEE754-2008, the (inf,zero,nan)
+     * case sets InvalidOp and returns the input value 'c'
+     */
+    set_float_infzeronan_rule(float_infzeronan_dnan_never, &env->fp_status);
 }
 
 int ieee_ex_to_loongarch(int xcpt)