Re: [Qemu-devel] [PATCH 07/14] Add v{add,sub}fp instructions

[Nathan Froyd <froydnj@codesourcery.com>]

We don't need to split up vaddfp and vsubfp because the softfloat code
already properly handles magnitude subtraction of infinities.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
---
 target-ppc/helper.h    |    2 ++
 target-ppc/op_helper.c |   14 ++++++++++++++
 target-ppc/translate.c |    2 ++
 3 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 1c76586..43d1867 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -232,6 +232,8 @@ DEF_HELPER_3(vsum2sws, void, avr, avr, avr)
 DEF_HELPER_3(vsum4sbs, void, avr, avr, avr)
 DEF_HELPER_3(vsum4shs, void, avr, avr, avr)
 DEF_HELPER_3(vsum4ubs, void, avr, avr, avr)
+DEF_HELPER_3(vaddfp, void, avr, avr, avr)
+DEF_HELPER_3(vsubfp, void, avr, avr, avr)
 DEF_HELPER_3(vmaxfp, void, avr, avr, avr)
 DEF_HELPER_3(vminfp, void, avr, avr, avr)
 DEF_HELPER_2(vlogefp, void, avr, avr)
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index 674a21d..6cf47a3 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2099,6 +2099,20 @@ VARITH(uwm, u32)
 #undef VARITH_DO
 #undef VARITH
 
+#define VARITHFP(suffix, func)                                          \
+    void helper_v##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)    \
+    {                                                                   \
+        int i;                                                          \
+        for (i = 0; i < ARRAY_SIZE(r->f); i++) {                        \
+            HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) {                    \
+                r->f[i] = func(a->f[i], b->f[i], &env->vec_status);     \
+            }                                                           \
+        }                                                               \
+    }
+VARITHFP(addfp, float32_add)
+VARITHFP(subfp, float32_sub)
+#undef VARITHFP
+
 #define VARITHSAT_CASE(type, op, cvt, element)                          \
     {                                                                   \
         type result = (type)a->element[i] op (type)b->element[i];       \
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 1f6386b..af83b19 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6395,6 +6395,8 @@ GEN_VXFORM(vsum4sbs, 4, 28);
 GEN_VXFORM(vsum4shs, 4, 25);
 GEN_VXFORM(vsum2sws, 4, 26);
 GEN_VXFORM(vsumsws, 4, 30);
+GEN_VXFORM(vaddfp, 5, 0);
+GEN_VXFORM(vsubfp, 5, 1);
 GEN_VXFORM(vmaxfp, 5, 16);
 GEN_VXFORM(vminfp, 5, 17);
 
-- 
1.6.0.5