target/ppc: Split out do_fmadd

Create a common function for all of the madd helpers.
Let the compiler tail call or inline as it chooses.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211119160502.17432-20-richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index f5d6bb4eba763d04a980a89a4454a14eaee08af3..d7e0362e808ec970d56d2736f75d38f6b643e000 100644 (file)
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -693,23 +693,26 @@ static void float_invalid_op_madd(CPUPPCState *env, int flags,
     }
 }
 
-#define FPU_FMADD(op, madd_flags)                                       \
-uint64_t helper_##op(CPUPPCState *env, uint64_t arg1,                   \
-                     uint64_t arg2, uint64_t arg3)                      \
-{                                                                       \
-    uint32_t flags;                                                     \
-    float64 ret = float64_muladd(arg1, arg2, arg3, madd_flags,          \
-                                 &env->fp_status);                      \
-    flags = get_float_exception_flags(&env->fp_status);                 \
-    if (flags) {                                                        \
-        if (flags & float_flag_invalid) {                               \
-            float_invalid_op_madd(env, flags, 1, GETPC());              \
-        }                                                               \
-        do_float_check_status(env, GETPC());                            \
-    }                                                                   \
-    return ret;                                                         \
+static float64 do_fmadd(CPUPPCState *env, float64 a, float64 b,
+                         float64 c, int madd_flags, uintptr_t retaddr)
+{
+    float64 ret = float64_muladd(a, b, c, madd_flags, &env->fp_status);
+    int flags = get_float_exception_flags(&env->fp_status);
+
+    if (flags) {
+        if (flags & float_flag_invalid) {
+            float_invalid_op_madd(env, flags, 1, retaddr);
+        }
+        do_float_check_status(env, retaddr);
+    }
+    return ret;
 }
 
+#define FPU_FMADD(op, madd_flags)                                    \
+    uint64_t helper_##op(CPUPPCState *env, uint64_t arg1,            \
+                         uint64_t arg2, uint64_t arg3)               \
+    { return do_fmadd(env, arg1, arg2, arg3, madd_flags, GETPC()); }
+
 #define MADD_FLGS 0
 #define MSUB_FLGS float_muladd_negate_c
 #define NMADD_FLGS float_muladd_negate_result