Hexagon (target/hexagon) add A5_ACS (vacsh)

Rxx32,Pe4 = vacsh(Rss32, Rtt32)
    Add compare and select elements of two vectors

Test cases in tests/tcg/hexagon/multi_result.c

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <1617930474-31979-20-git-send-email-tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c
index a25fb98..f9fb655 100644
--- a/target/hexagon/op_helper.c
+++ b/target/hexagon/op_helper.c
@@ -347,6 +347,39 @@ uint64_t HELPER(sfinvsqrta)(CPUHexagonState *env, float32 RsV)
     return ((uint64_t)RdV << 32) | PeV;
 }
 
+int64_t HELPER(vacsh_val)(CPUHexagonState *env,
+                           int64_t RxxV, int64_t RssV, int64_t RttV)
+{
+    for (int i = 0; i < 4; i++) {
+        int xv = sextract64(RxxV, i * 16, 16);
+        int sv = sextract64(RssV, i * 16, 16);
+        int tv = sextract64(RttV, i * 16, 16);
+        int max;
+        xv = xv + tv;
+        sv = sv - tv;
+        max = xv > sv ? xv : sv;
+        /* Note that fSATH can set the OVF bit in usr */
+        RxxV = deposit64(RxxV, i * 16, 16, fSATH(max));
+    }
+    return RxxV;
+}
+
+int32_t HELPER(vacsh_pred)(CPUHexagonState *env,
+                           int64_t RxxV, int64_t RssV, int64_t RttV)
+{
+    int32_t PeV = 0;
+    for (int i = 0; i < 4; i++) {
+        int xv = sextract64(RxxV, i * 16, 16);
+        int sv = sextract64(RssV, i * 16, 16);
+        int tv = sextract64(RttV, i * 16, 16);
+        xv = xv + tv;
+        sv = sv - tv;
+        PeV = deposit32(PeV, i * 2, 1, (xv > sv));
+        PeV = deposit32(PeV, i * 2 + 1, 1, (xv > sv));
+    }
+    return PeV;
+}
+
 /*
  * mem_noshuf
  * Section 5.5 of the Hexagon V67 Programmer's Reference Manual