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## [RFC PATCH 45/66] Hexagon TCG generation - step 08

 From: Taylor Simpson Subject: [RFC PATCH 45/66] Hexagon TCG generation - step 08 Date: Mon, 10 Feb 2020 18:40:23 -0600

```Override mathematical operations with more than one definition

---
target/hexagon/helper_overrides.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/target/hexagon/helper_overrides.h
b/target/hexagon/helper_overrides.h
index c7550d5..e544dd5 100644
--- a/target/hexagon/helper_overrides.h
+++ b/target/hexagon/helper_overrides.h
@@ -1200,4 +1200,34 @@
#define fWRAP_SL2_return_fnew(GENHLPR, SHORTCODE) \
fWRAP_COND_RETURN_SUBINSN(fLSBNEW0NOT)

+/*
+ * Mathematical operations with more than one definition require
+ * special handling
+ */
+/*
+ * Approximate reciprocal
+ * r3,p1 = sfrecipa(r0, r1)
+ */
+#define fWRAP_F2_sfrecipa(GENHLPR, SHORTCODE) \
+    do { \
+        gen_helper_sfrecipa_val(RdV, cpu_env, RsV, RtV);  \
+        gen_helper_sfrecipa_pred(PeV, cpu_env, RsV, RtV);  \
+    } while (0)
+
+/*
+ * Approximation of the reciprocal square root
+ * r1,p0 = sfinvsqrta(r0)
+ */
+#define fWRAP_F2_sfinvsqrta(GENHLPR, SHORTCODE) \
+    do { \
+        gen_helper_sfinvsqrta_val(RdV, cpu_env, RsV); \
+        gen_helper_sfinvsqrta_pred(PeV, cpu_env, RsV); \
+    } while (0)
+
+#define fWRAP_A5_ACS(GENHLPR, SHORTCODE) \
+    do { \
+        gen_helper_vacsh_val(RxxV, cpu_env, RxxV, RssV, RttV); \
+        gen_helper_vacsh_pred(PeV, cpu_env, RxxV, RssV, RttV); \
+    } while (0)
+
#endif
--
2.7.4

```