Impletment float eq operation in aot_intrinsics

Author: no1wudi

core/iwasm/aot/aot_intrinsic.c

@@ -5,6 +5,8 @@
 
 #include "aot_intrinsic.h"
 
+#include <float.h>
+
 typedef struct {
     const char *llvm_intrinsic;
     const char *native_intrinsic;
@@ -425,6 +427,9 @@ int32
 aot_intrinsic_f32_cmp(AOTFloatCond cond, float32 lhs, float32 rhs)
 {
     switch (cond) {
+        case FLOAT_EQ:
+            return fabsf(lhs - rhs) <= __FLT_EPSILON__ ? 1 : 0;
+
         case FLOAT_LT:
             return lhs < rhs ? 1 : 0;
 
@@ -453,6 +458,9 @@ int32
 aot_intrinsic_f64_cmp(AOTFloatCond cond, float64 lhs, float64 rhs)
 {
     switch (cond) {
+        case FLOAT_EQ:
+            return fabs(lhs - rhs) <= __DBL_EPSILON__ ? 1 : 0;
+
         case FLOAT_LT:
             return lhs < rhs ? 1 : 0;