1 files changed, 30 insertions, 25 deletions

diff --git a/target/mips/fpu_helper.c b/target/mips/fpu_helper.c
index dbb8ca5692..7a3a61cab3 100644
--- a/target/mips/fpu_helper.c
+++ b/target/mips/fpu_helper.c
@@ -189,43 +189,48 @@ void helper_ctc1(CPUMIPSState *env, target_ulong arg1, uint32_t fs, uint32_t rt)
     }
 }
 
-int ieee_ex_to_mips(int xcpt)
+static inline int ieee_to_mips_xcpt(int ieee_xcpt)
 {
-    int ret = 0;
-    if (xcpt) {
-        if (xcpt & float_flag_invalid) {
-            ret |= FP_INVALID;
-        }
-        if (xcpt & float_flag_overflow) {
-            ret |= FP_OVERFLOW;
-        }
-        if (xcpt & float_flag_underflow) {
-            ret |= FP_UNDERFLOW;
-        }
-        if (xcpt & float_flag_divbyzero) {
-            ret |= FP_DIV0;
-        }
-        if (xcpt & float_flag_inexact) {
-            ret |= FP_INEXACT;
-        }
+    int mips_xcpt = 0;
+
+    if (ieee_xcpt & float_flag_invalid) {
+        mips_xcpt |= FP_INVALID;
+    }
+    if (ieee_xcpt & float_flag_overflow) {
+        mips_xcpt |= FP_OVERFLOW;
     }
-    return ret;
+    if (ieee_xcpt & float_flag_underflow) {
+        mips_xcpt |= FP_UNDERFLOW;
+    }
+    if (ieee_xcpt & float_flag_divbyzero) {
+        mips_xcpt |= FP_DIV0;
+    }
+    if (ieee_xcpt & float_flag_inexact) {
+        mips_xcpt |= FP_INEXACT;
+    }
+
+    return mips_xcpt;
 }
 
 static inline void update_fcr31(CPUMIPSState *env, uintptr_t pc)
 {
-    int tmp = ieee_ex_to_mips(get_float_exception_flags(
-                                  &env->active_fpu.fp_status));
+    int ieee_exception_flags = get_float_exception_flags(
+                                   &env->active_fpu.fp_status);
+    int mips_exception_flags = 0;
+
+    if (ieee_exception_flags) {
+        mips_exception_flags = ieee_to_mips_xcpt(ieee_exception_flags);
+    }
 
-    SET_FP_CAUSE(env->active_fpu.fcr31, tmp);
+    SET_FP_CAUSE(env->active_fpu.fcr31, mips_exception_flags);
 
-    if (tmp) {
+    if (mips_exception_flags)  {
         set_float_exception_flags(0, &env->active_fpu.fp_status);
 
-        if (GET_FP_ENABLE(env->active_fpu.fcr31) & tmp) {
+        if (GET_FP_ENABLE(env->active_fpu.fcr31) & mips_exception_flags) {
             do_raise_exception(env, EXCP_FPE, pc);
         } else {
-            UPDATE_FP_FLAGS(env->active_fpu.fcr31, tmp);
+            UPDATE_FP_FLAGS(env->active_fpu.fcr31, mips_exception_flags);
         }
     }
 }