1 files changed, 37 insertions, 4 deletions

diff --git a/target/s390x/fpu_helper.c b/target/s390x/fpu_helper.c
index f155bc048c..13af158748 100644
--- a/target/s390x/fpu_helper.c
+++ b/target/s390x/fpu_helper.c
@@ -509,6 +509,9 @@ uint64_t HELPER(cgeb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float32_is_any_nan(v2)) {
+        return INT64_MIN;
+    }
     return ret;
 }
 
@@ -520,6 +523,9 @@ uint64_t HELPER(cgdb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float64_is_any_nan(v2)) {
+        return INT64_MIN;
+    }
     return ret;
 }
 
@@ -532,6 +538,9 @@ uint64_t HELPER(cgxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float128_is_any_nan(v2)) {
+        return INT64_MIN;
+    }
     return ret;
 }
 
@@ -543,6 +552,9 @@ uint64_t HELPER(cfeb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float32_is_any_nan(v2)) {
+        return INT32_MIN;
+    }
     return ret;
 }
 
@@ -554,6 +566,9 @@ uint64_t HELPER(cfdb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float64_is_any_nan(v2)) {
+        return INT32_MIN;
+    }
     return ret;
 }
 
@@ -566,6 +581,9 @@ uint64_t HELPER(cfxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float128_is_any_nan(v2)) {
+        return INT32_MIN;
+    }
     return ret;
 }
 
@@ -573,12 +591,12 @@ uint64_t HELPER(cfxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m34)
 uint64_t HELPER(clgeb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 {
     int old_mode = s390_swap_bfp_rounding_mode(env, round_from_m34(m34));
-    uint64_t ret;
-
-    v2 = float32_to_float64(v2, &env->fpu_status);
-    ret = float64_to_uint64(v2, &env->fpu_status);
+    uint64_t ret = float32_to_uint64(v2, &env->fpu_status);
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float32_is_any_nan(v2)) {
+        return 0;
+    }
     return ret;
 }
 
@@ -590,6 +608,9 @@ uint64_t HELPER(clgdb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float64_is_any_nan(v2)) {
+        return 0;
+    }
     return ret;
 }
 
@@ -601,6 +622,9 @@ uint64_t HELPER(clgxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float128_is_any_nan(make_float128(h, l))) {
+        return 0;
+    }
     return ret;
 }
 
@@ -612,6 +636,9 @@ uint64_t HELPER(clfeb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float32_is_any_nan(v2)) {
+        return 0;
+    }
     return ret;
 }
 
@@ -623,6 +650,9 @@ uint64_t HELPER(clfdb)(CPUS390XState *env, uint64_t v2, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float64_is_any_nan(v2)) {
+        return 0;
+    }
     return ret;
 }
 
@@ -634,6 +664,9 @@ uint64_t HELPER(clfxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m34)
 
     s390_restore_bfp_rounding_mode(env, old_mode);
     handle_exceptions(env, xxc_from_m34(m34), GETPC());
+    if (float128_is_any_nan(make_float128(h, l))) {
+        return 0;
+    }
     return ret;
 }