fpu: Add accessors for rebias_{underflow,overflow}

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc
index bef47a932d86cb578d7b005ad8c7fcc475a93864..184614ea472952d7fc4dccd814e8933ea10afcee 100644 (file)
--- a/fpu/softfloat-parts.c.inc
+++ b/fpu/softfloat-parts.c.inc
@@ -358,7 +358,7 @@ static void partsN(uncanon_normal)(FloatPartsN *p, float_status *s,
             switch (fmt->exp_max_kind) {
             case float_expmax_ieee:
                 flags |= float_flag_overflow;
-                if (s->rebias_overflow) {
+                if (get_float_rebias_overflow(s)) {
                     exp -= fmt->exp_re_bias;
                 } else if (overflow_norm) {
                     flags |= float_flag_inexact;
@@ -398,7 +398,7 @@ static void partsN(uncanon_normal)(FloatPartsN *p, float_status *s,
             }
         }
         fracN(shr)(p, frac_shift);
-    } else if (unlikely(s->rebias_underflow)) {
+    } else if (unlikely(get_float_rebias_underflow(s))) {
         flags |= float_flag_underflow;
         exp += fmt->exp_re_bias;
         if (p->frac_lo & round_mask) {

diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc
index c1ed661f5eb5e85d9a82e0bd944a23a883e0a2dd..b97c971ae62471c81976fd3da4ac8cd9518db86d 100644 (file)
--- a/fpu/softfloat-specialize.c.inc
+++ b/fpu/softfloat-specialize.c.inc
@@ -94,6 +94,16 @@ static inline uint8_t get_float_default_nan_pattern(const float_status *status)
     return status->default_nan_pattern;
 }
 
+static inline bool get_float_rebias_overflow(const float_status *status)
+{
+    return status->rebias_overflow;
+}
+
+static inline bool get_float_rebias_underflow(const float_status *status)
+{
+    return status->rebias_underflow;
+}
+
 /*----------------------------------------------------------------------------
 | For the deconstructed floating-point with fraction FRAC, return true
 | if the fraction represents a signalling NaN; otherwise false.

diff --git a/include/fpu/softfloat-helpers.h b/include/fpu/softfloat-helpers.h
index 49e04ffee9e76e75d15f0da29711ef73cf31c6e6..4791a7fc8702f522d4cebcc4ae1cad5195abe940 100644 (file)
--- a/include/fpu/softfloat-helpers.h
+++ b/include/fpu/softfloat-helpers.h
@@ -131,6 +131,16 @@ static inline void set_snan_rule(FloatSNaNRule val, float_status *status)
     status->float_snan_rule = val;
 }
 
+static inline void set_float_rebias_overflow(bool val, float_status *status)
+{
+    status->rebias_overflow = val;
+}
+
+static inline void set_float_rebias_underflow(bool val, float_status *status)
+{
+    status->rebias_underflow = val;
+}
+
 static inline FloatRoundMode get_float_rounding_mode(const float_status *status)
 {
     return status->float_rounding_mode;

diff --git a/target/ppc/cpu.c b/target/ppc/cpu.c
index 4d8faaddee236f35cf7fae3b13c95ed3d2c3ced4..41edb18643dd0bef1e5840107164aa3fb6a12275 100644 (file)
--- a/target/ppc/cpu.c
+++ b/target/ppc/cpu.c
@@ -248,8 +248,8 @@ void ppc_store_fpscr(CPUPPCState *env, target_ulong val)
         val |= FP_FEX;
     }
     env->fpscr = val;
-    env->fp_status.rebias_overflow  = (FP_OE & env->fpscr) ? true : false;
-    env->fp_status.rebias_underflow = (FP_UE & env->fpscr) ? true : false;
+    set_float_rebias_overflow(FP_OE & env->fpscr, &env->fp_status);
+    set_float_rebias_underflow(FP_UE & env->fpscr, &env->fp_status);
     if (tcg_enabled()) {
         fpscr_set_rounding_mode(env);
     }