From: Richard Henderson <richard.henderson@linaro.org>
Date: Fri, 1 May 2026 10:15:49 +0000 (+1000)
Subject: fpu: Use {get,set}_flush_inputs_to_zero everywhere
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6967da87c63009b00b166012e1cf2ec79cbef1ae;p=thirdparty%2Fqemu.git

fpu: Use {get,set}_flush_inputs_to_zero everywhere

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 0e5311b50f..6a67e6af2c 100644
--- a/fpu/softfloat-parts.c.inc
+++ b/fpu/softfloat-parts.c.inc
@@ -218,7 +218,7 @@ static void partsN(canonicalize)(FloatPartsN *p, float_status *status,
     if (unlikely(p->exp == 0)) {
         if (likely(fracN(eqz)(p))) {
             p->cls = float_class_zero;
-        } else if (status->flush_inputs_to_zero) {
+        } else if (get_flush_inputs_to_zero(status)) {
             float_raise(float_flag_input_denormal_flushed, status);
             p->cls = float_class_zero;
             fracN(clear)(p);
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index dcae5b3be2..be6b02d866 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -141,7 +141,7 @@ GEN_INPUT_FLUSH__NOCHECK(float64_input_flush__nocheck, float64)
 #define GEN_INPUT_FLUSH1(name, soft_t)                  \
     static inline void name(soft_t *a, float_status *s) \
     {                                                   \
-        if (likely(!s->flush_inputs_to_zero)) {         \
+        if (likely(!get_flush_inputs_to_zero(s))) {     \
             return;                                     \
         }                                               \
         soft_t ## _input_flush__nocheck(a, s);          \
@@ -154,7 +154,7 @@ GEN_INPUT_FLUSH1(float64_input_flush1, float64)
 #define GEN_INPUT_FLUSH2(name, soft_t)                                  \
     static inline void name(soft_t *a, soft_t *b, float_status *s)      \
     {                                                                   \
-        if (likely(!s->flush_inputs_to_zero)) {                         \
+        if (likely(!get_flush_inputs_to_zero(s))) {                     \
             return;                                                     \
         }                                                               \
         soft_t ## _input_flush__nocheck(a, s);                          \
@@ -168,7 +168,7 @@ GEN_INPUT_FLUSH2(float64_input_flush2, float64)
 #define GEN_INPUT_FLUSH3(name, soft_t)                                  \
     static inline void name(soft_t *a, soft_t *b, soft_t *c, float_status *s) \
     {                                                                   \
-        if (likely(!s->flush_inputs_to_zero)) {                         \
+        if (likely(!get_flush_inputs_to_zero(s))) {                     \
             return;                                                     \
         }                                                               \
         soft_t ## _input_flush__nocheck(a, s);                          \
@@ -4764,7 +4764,7 @@ static bool parts_squash_denormal(FloatParts64 p, float_status *status)
 
 float16 float16_squash_input_denormal(float16 a, float_status *status)
 {
-    if (status->flush_inputs_to_zero) {
+    if (get_flush_inputs_to_zero(status)) {
         FloatParts64 p = unpack_raw64(&float16_params, a);
 
         if (parts_squash_denormal(p, status)) {
@@ -4776,7 +4776,7 @@ float16 float16_squash_input_denormal(float16 a, float_status *status)
 
 float32 float32_squash_input_denormal(float32 a, float_status *status)
 {
-    if (status->flush_inputs_to_zero) {
+    if (get_flush_inputs_to_zero(status)) {
         FloatParts64 p = unpack_raw64(&float32_params, a);
 
         if (parts_squash_denormal(p, status)) {
@@ -4788,7 +4788,7 @@ float32 float32_squash_input_denormal(float32 a, float_status *status)
 
 float64 float64_squash_input_denormal(float64 a, float_status *status)
 {
-    if (status->flush_inputs_to_zero) {
+    if (get_flush_inputs_to_zero(status)) {
         FloatParts64 p = unpack_raw64(&float64_params, a);
 
         if (parts_squash_denormal(p, status)) {
@@ -4800,7 +4800,7 @@ float64 float64_squash_input_denormal(float64 a, float_status *status)
 
 bfloat16 bfloat16_squash_input_denormal(bfloat16 a, float_status *status)
 {
-    if (status->flush_inputs_to_zero) {
+    if (get_flush_inputs_to_zero(status)) {
         FloatParts64 p = unpack_raw64(&bfloat16_params, a);
 
         if (parts_squash_denormal(p, status)) {
diff --git a/target/alpha/fpu_helper.c b/target/alpha/fpu_helper.c
index 0ced53c54e..5b7e4bd5eb 100644
--- a/target/alpha/fpu_helper.c
+++ b/target/alpha/fpu_helper.c
@@ -151,7 +151,7 @@ void helper_ieee_input_cmp(CPUAlphaState *env, uint64_t val)
 void helper_ieee_input_s(CPUAlphaState *env, uint64_t val)
 {
     if (unlikely(2 * val - 1 < 0x1fffffffffffffull)
-        && !env->fp_status.flush_inputs_to_zero) {
+        && !get_flush_inputs_to_zero(&env->fp_status)) {
         arith_excp(env, GETPC(), EXC_M_INV | EXC_M_SWC, 0);
     }
 }
diff --git a/target/alpha/helper.c b/target/alpha/helper.c
index 33fed0c746..2abf07c191 100644
--- a/target/alpha/helper.c
+++ b/target/alpha/helper.c
@@ -24,6 +24,7 @@
 #include "exec/page-protection.h"
 #include "exec/target_page.h"
 #include "fpu/softfloat-types.h"
+#include "fpu/softfloat-helpers.h"
 #include "exec/helper-proto.h"
 #include "qemu/qemu-print.h"
 #include "system/memory.h"
@@ -80,7 +81,7 @@ void cpu_alpha_store_fpcr(CPUAlphaState *env, uint64_t val)
     env->fpcr_exc_enable = ~t & FPCR_STATUS_MASK;
 
     env->fpcr_dyn_round = rm_map[(fpcr & FPCR_DYN_MASK) >> FPCR_DYN_SHIFT];
-    env->fp_status.flush_inputs_to_zero = (fpcr & FPCR_DNZ) != 0;
+    set_flush_inputs_to_zero(fpcr & FPCR_DNZ, &env->fp_status);
 
     t = (fpcr & FPCR_UNFD) && (fpcr & FPCR_UNDZ);
 #ifdef CONFIG_USER_ONLY
diff --git a/tests/fp/fp-bench.c b/tests/fp/fp-bench.c
index ccc561b578..c53d6e4b34 100644
--- a/tests/fp/fp-bench.c
+++ b/tests/fp/fp-bench.c
@@ -672,7 +672,7 @@ static void parse_args(int argc, char *argv[])
             tester = val;
             break;
         case 'z':
-            soft_status.flush_inputs_to_zero = 1;
+            set_flush_inputs_to_zero(true, &soft_status);
             break;
         case 'Z':
             set_flush_to_zero(true, &soft_status);