*----------------------------------------------------------------------------*/
static int pickNaN(FloatClass a_cls, FloatClass b_cls,
- bool aIsLargerSignificand)
+ bool aIsLargerSignificand, float_status *status)
{
#if defined(TARGET_ARM) || defined(TARGET_MIPS) || defined(TARGET_HPPA)
/* ARM mandated NaN propagation rules (see FPProcessNaNs()), take
} else {
return 1;
}
-#elif defined(TARGET_PPC) || defined(TARGET_XTENSA) || defined(TARGET_M68K)
+#elif defined(TARGET_PPC) || defined(TARGET_M68K)
/* PowerPC propagation rules:
* 1. A if it sNaN or qNaN
* 2. B if it sNaN or qNaN
} else {
return 1;
}
+#elif defined(TARGET_XTENSA)
+ /*
+ * Xtensa has two NaN propagation modes.
+ * Which one is active is controlled by float_status::use_first_nan.
+ */
+ if (status->use_first_nan) {
+ if (is_nan(a_cls)) {
+ return 0;
+ } else {
+ return 1;
+ }
+ } else {
+ if (is_nan(b_cls)) {
+ return 1;
+ } else {
+ return 0;
+ }
+ }
#else
/* This implements x87 NaN propagation rules:
* SNaN + QNaN => return the QNaN
aIsLargerSignificand = (av < bv) ? 1 : 0;
}
- if (pickNaN(a_cls, b_cls, aIsLargerSignificand)) {
+ if (pickNaN(a_cls, b_cls, aIsLargerSignificand, status)) {
if (is_snan(b_cls)) {
return float32_silence_nan(b, status);
}
aIsLargerSignificand = (av < bv) ? 1 : 0;
}
- if (pickNaN(a_cls, b_cls, aIsLargerSignificand)) {
+ if (pickNaN(a_cls, b_cls, aIsLargerSignificand, status)) {
if (is_snan(b_cls)) {
return float64_silence_nan(b, status);
}
aIsLargerSignificand = (a.high < b.high) ? 1 : 0;
}
- if (pickNaN(a_cls, b_cls, aIsLargerSignificand)) {
+ if (pickNaN(a_cls, b_cls, aIsLargerSignificand, status)) {
if (is_snan(b_cls)) {
return floatx80_silence_nan(b, status);
}
aIsLargerSignificand = (a.high < b.high) ? 1 : 0;
}
- if (pickNaN(a_cls, b_cls, aIsLargerSignificand)) {
+ if (pickNaN(a_cls, b_cls, aIsLargerSignificand, status)) {
if (is_snan(b_cls)) {
return float128_silence_nan(b, status);
}