rvv: fix int_max/min value calculation

1. use stdint macro
2. fix vxsat status for vsmul

Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/riscv/insns/vsmul_vx.h b/riscv/insns/vsmul_vx.h
index 4326d8f..cf4b511 100644
--- a/riscv/insns/vsmul_vx.h
+++ b/riscv/insns/vsmul_vx.h
@@ -1,7 +1,7 @@
-// vsmul
+// vsmul.vx vd, vs2, rs1
 VRM xrm = P.VU.get_vround_mode();
-int64_t int_max = (uint64_t(1) << (P.VU.vsew - 1)) - 1;
-int64_t int_min = - (1 << (P.VU.vsew - 1));
+int64_t int_max = INT64_MAX >> (64 - P.VU.vsew);
+int64_t int_min = INT64_MIN >> (64 - P.VU.vsew);
 int64_t sign_mask = uint64_t(1) << (P.VU.vsew - 1);
 
 VI_VX_LOOP
@@ -26,7 +26,7 @@ VI_VX_LOOP
   // max saturation
   if (overflow) {
     result = int_max;
-    P.VU.vxsat = 1;
+    P.VU.vxsat |= 1;
   }
 
   vd = result;