diff mbox

[v2,04/19] target-mips: use the softfloat floatXX_muladd functions

Message ID 1351555932-19695-5-git-send-email-aurelien@aurel32.net
State New
Headers show

Commit Message

Aurelien Jarno Oct. 30, 2012, 12:11 a.m. UTC 
Use the new softfloat floatXX_muladd() functions to implement the madd,
msub, nmadd and nmsub instructions. At the same time replace the name of
the helpers by the name of the instruction, as the only reason for the
previous names was to keep the macros simple.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 target-mips/helper.h    |    8 +--
 target-mips/op_helper.c |  137 +++++++++++++++++------------------------------
 target-mips/translate.c |   24 ++++-----
 3 files changed, 64 insertions(+), 105 deletions(-)
diff mbox

Patch

diff --git a/target-mips/helper.h b/target-mips/helper.h
index 43ac39f..210960f 100644
--- a/target-mips/helper.h
+++ b/target-mips/helper.h
@@ -254,10 +254,10 @@  FOP_PROTO(rsqrt2)
 DEF_HELPER_4(float_ ## op ## _s, i32, env, i32, i32, i32)  \
 DEF_HELPER_4(float_ ## op ## _d, i64, env, i64, i64, i64)  \
 DEF_HELPER_4(float_ ## op ## _ps, i64, env, i64, i64, i64)
-FOP_PROTO(muladd)
-FOP_PROTO(mulsub)
-FOP_PROTO(nmuladd)
-FOP_PROTO(nmulsub)
+FOP_PROTO(madd)
+FOP_PROTO(msub)
+FOP_PROTO(nmadd)
+FOP_PROTO(nmsub)
 #undef FOP_PROTO
 
 #define FOP_PROTO(op)                                    \
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index d50334f..1abed8e 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -3031,95 +3031,54 @@  FLOAT_BINOP(mul)
 FLOAT_BINOP(div)
 #undef FLOAT_BINOP
 
-/* ternary operations */
-#define FLOAT_TERNOP(name1, name2)                                        \
-uint64_t helper_float_ ## name1 ## name2 ## _d(CPUMIPSState *env,         \
-                                               uint64_t fdt0,             \
-                                               uint64_t fdt1,             \
-                                               uint64_t fdt2)             \
-{                                                                         \
-    fdt0 = float64_ ## name1 (fdt0, fdt1, &env->active_fpu.fp_status);          \
-    return float64_ ## name2 (fdt0, fdt2, &env->active_fpu.fp_status);          \
-}                                                                         \
-                                                                          \
-uint32_t helper_float_ ## name1 ## name2 ## _s(CPUMIPSState *env,         \
-                                               uint32_t fst0,             \
-                                               uint32_t fst1,             \
-                                               uint32_t fst2)             \
-{                                                                         \
-    fst0 = float32_ ## name1 (fst0, fst1, &env->active_fpu.fp_status);          \
-    return float32_ ## name2 (fst0, fst2, &env->active_fpu.fp_status);          \
-}                                                                         \
-                                                                          \
-uint64_t helper_float_ ## name1 ## name2 ## _ps(CPUMIPSState *env,        \
-                                                uint64_t fdt0,            \
-                                                uint64_t fdt1,            \
-                                                uint64_t fdt2)            \
-{                                                                         \
-    uint32_t fst0 = fdt0 & 0XFFFFFFFF;                                    \
-    uint32_t fsth0 = fdt0 >> 32;                                          \
-    uint32_t fst1 = fdt1 & 0XFFFFFFFF;                                    \
-    uint32_t fsth1 = fdt1 >> 32;                                          \
-    uint32_t fst2 = fdt2 & 0XFFFFFFFF;                                    \
-    uint32_t fsth2 = fdt2 >> 32;                                          \
-                                                                          \
-    fst0 = float32_ ## name1 (fst0, fst1, &env->active_fpu.fp_status);          \
-    fsth0 = float32_ ## name1 (fsth0, fsth1, &env->active_fpu.fp_status);       \
-    fst2 = float32_ ## name2 (fst0, fst2, &env->active_fpu.fp_status);          \
-    fsth2 = float32_ ## name2 (fsth0, fsth2, &env->active_fpu.fp_status);       \
-    return ((uint64_t)fsth2 << 32) | fst2;                                \
-}
-
-FLOAT_TERNOP(mul, add)
-FLOAT_TERNOP(mul, sub)
-#undef FLOAT_TERNOP
-
-/* negated ternary operations */
-#define FLOAT_NTERNOP(name1, name2)                                       \
-uint64_t helper_float_n ## name1 ## name2 ## _d(CPUMIPSState *env,        \
-                                                uint64_t fdt0,            \
-                                                uint64_t fdt1,            \
-                                                uint64_t fdt2)            \
-{                                                                         \
-    fdt0 = float64_ ## name1 (fdt0, fdt1, &env->active_fpu.fp_status);          \
-    fdt2 = float64_ ## name2 (fdt0, fdt2, &env->active_fpu.fp_status);          \
-    return float64_chs(fdt2);                                             \
-}                                                                         \
-                                                                          \
-uint32_t helper_float_n ## name1 ## name2 ## _s(CPUMIPSState *env,        \
-                                                uint32_t fst0,            \
-                                                uint32_t fst1,            \
-                                                uint32_t fst2)            \
-{                                                                         \
-    fst0 = float32_ ## name1 (fst0, fst1, &env->active_fpu.fp_status);          \
-    fst2 = float32_ ## name2 (fst0, fst2, &env->active_fpu.fp_status);          \
-    return float32_chs(fst2);                                             \
-}                                                                         \
-                                                                          \
-uint64_t helper_float_n ## name1 ## name2 ## _ps(CPUMIPSState *env,       \
-                                                 uint64_t fdt0,           \
-                                                 uint64_t fdt1,           \
-                                                 uint64_t fdt2)           \
-{                                                                         \
-    uint32_t fst0 = fdt0 & 0XFFFFFFFF;                                    \
-    uint32_t fsth0 = fdt0 >> 32;                                          \
-    uint32_t fst1 = fdt1 & 0XFFFFFFFF;                                    \
-    uint32_t fsth1 = fdt1 >> 32;                                          \
-    uint32_t fst2 = fdt2 & 0XFFFFFFFF;                                    \
-    uint32_t fsth2 = fdt2 >> 32;                                          \
-                                                                          \
-    fst0 = float32_ ## name1 (fst0, fst1, &env->active_fpu.fp_status);          \
-    fsth0 = float32_ ## name1 (fsth0, fsth1, &env->active_fpu.fp_status);       \
-    fst2 = float32_ ## name2 (fst0, fst2, &env->active_fpu.fp_status);          \
-    fsth2 = float32_ ## name2 (fsth0, fsth2, &env->active_fpu.fp_status);       \
-    fst2 = float32_chs(fst2);                                             \
-    fsth2 = float32_chs(fsth2);                                           \
-    return ((uint64_t)fsth2 << 32) | fst2;                                \
-}
-
-FLOAT_NTERNOP(mul, add)
-FLOAT_NTERNOP(mul, sub)
-#undef FLOAT_NTERNOP
+/* FMA based operations */
+#define FLOAT_FMA(name, type)                                        \
+uint64_t helper_float_ ## name ## _d(CPUMIPSState *env,              \
+                                     uint64_t fdt0, uint64_t fdt1,   \
+                                     uint64_t fdt2)                  \
+{                                                                    \
+    set_float_exception_flags(0, &env->active_fpu.fp_status);        \
+    fdt0 = float64_muladd(fdt0, fdt1, fdt2, type,                    \
+                         &env->active_fpu.fp_status);                \
+    update_fcr31(env);                                               \
+    return fdt0;                                                     \
+}                                                                    \
+                                                                     \
+uint32_t helper_float_ ## name ## _s(CPUMIPSState *env,              \
+                                     uint32_t fst0, uint32_t fst1,   \
+                                     uint32_t fst2)                  \
+{                                                                    \
+    set_float_exception_flags(0, &env->active_fpu.fp_status);        \
+    fst0 = float32_muladd(fst0, fst1, fst2, type,                    \
+                         &env->active_fpu.fp_status);                \
+    update_fcr31(env);                                               \
+    return fst0;                                                     \
+}                                                                    \
+                                                                     \
+uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env,             \
+                                      uint64_t fdt0, uint64_t fdt1,  \
+                                      uint64_t fdt2)                 \
+{                                                                    \
+    uint32_t fst0 = fdt0 & 0XFFFFFFFF;                               \
+    uint32_t fsth0 = fdt0 >> 32;                                     \
+    uint32_t fst1 = fdt1 & 0XFFFFFFFF;                               \
+    uint32_t fsth1 = fdt1 >> 32;                                     \
+    uint32_t fst2 = fdt2 & 0XFFFFFFFF;                               \
+    uint32_t fsth2 = fdt2 >> 32;                                     \
+                                                                     \
+    set_float_exception_flags(0, &env->active_fpu.fp_status);        \
+    fst0 = float32_muladd(fst0, fst1, fst2, type,                    \
+                          &env->active_fpu.fp_status);               \
+    fsth0 = float32_muladd(fsth0, fsth1, fsth2, type,                \
+                           &env->active_fpu.fp_status);              \
+    update_fcr31(env);                                               \
+    return ((uint64_t)fsth0 << 32) | fst0;                           \
+}
+FLOAT_FMA(madd, 0)
+FLOAT_FMA(msub, float_muladd_negate_c)
+FLOAT_FMA(nmadd, float_muladd_negate_result)
+FLOAT_FMA(nmsub, float_muladd_negate_result | float_muladd_negate_c)
+#undef FLOAT_FMA
 
 /* MIPS specific binary operations */
 uint64_t helper_float_recip2_d(CPUMIPSState *env, uint64_t fdt0, uint64_t fdt2)
diff --git a/target-mips/translate.c b/target-mips/translate.c
index 97a63ea..732c65d 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -8275,7 +8275,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr32(fp0, fs);
             gen_load_fpr32(fp1, ft);
             gen_load_fpr32(fp2, fr);
-            gen_helper_float_muladd_s(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_madd_s(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
             gen_store_fpr32(fp2, fd);
@@ -8294,7 +8294,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_muladd_d(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_madd_d(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);
@@ -8312,7 +8312,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_muladd_ps(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_madd_ps(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);
@@ -8330,7 +8330,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr32(fp0, fs);
             gen_load_fpr32(fp1, ft);
             gen_load_fpr32(fp2, fr);
-            gen_helper_float_mulsub_s(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_msub_s(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
             gen_store_fpr32(fp2, fd);
@@ -8349,7 +8349,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_mulsub_d(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_msub_d(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);
@@ -8367,7 +8367,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_mulsub_ps(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_msub_ps(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);
@@ -8385,7 +8385,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr32(fp0, fs);
             gen_load_fpr32(fp1, ft);
             gen_load_fpr32(fp2, fr);
-            gen_helper_float_nmuladd_s(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_nmadd_s(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
             gen_store_fpr32(fp2, fd);
@@ -8404,7 +8404,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_nmuladd_d(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_nmadd_d(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);
@@ -8422,7 +8422,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_nmuladd_ps(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_nmadd_ps(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);
@@ -8440,7 +8440,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr32(fp0, fs);
             gen_load_fpr32(fp1, ft);
             gen_load_fpr32(fp2, fr);
-            gen_helper_float_nmulsub_s(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_nmsub_s(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
             gen_store_fpr32(fp2, fd);
@@ -8459,7 +8459,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_nmulsub_d(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_nmsub_d(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);
@@ -8477,7 +8477,7 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_load_fpr64(ctx, fp0, fs);
             gen_load_fpr64(ctx, fp1, ft);
             gen_load_fpr64(ctx, fp2, fr);
-            gen_helper_float_nmulsub_ps(fp2, cpu_env, fp0, fp1, fp2);
+            gen_helper_float_nmsub_ps(fp2, cpu_env, fp0, fp1, fp2);
             tcg_temp_free_i64(fp0);
             tcg_temp_free_i64(fp1);
             gen_store_fpr64(ctx, fp2, fd);