[PULL 27/38] target/riscv64: Implement min/max with Zbb

Signed-off-by: Richard Henderson <[email protected]>
---
 tcg/riscv64/tcg-target.c.inc | 44 ++++++++++++++++++++++++++++++++----
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/tcg/riscv64/tcg-target.c.inc b/tcg/riscv64/tcg-target.c.inc
index 723c21b3da..2ce9d47a63 100644
--- a/tcg/riscv64/tcg-target.c.inc
+++ b/tcg/riscv64/tcg-target.c.inc
@@ -233,6 +233,10 @@ typedef enum {
     OPC_CPOPW  = 0x6020101b,
     OPC_CTZ    = 0x60101013,
     OPC_CTZW   = 0x6010101b,
+    OPC_MAX    = 0x0a006033,
+    OPC_MAXU   = 0x0a007033,
+    OPC_MIN    = 0x0a004033,
+    OPC_MINU   = 0x0a005033,
     OPC_ORN    = 0x40006033,
     OPC_REV8   = 0x6b805013,
     OPC_ROL    = 0x60001033,
@@ -2404,20 +2408,52 @@ static void tcg_out_set_borrow(TCGContext *s)
     g_assert_not_reached();
 }
 
+static void tgen_smax(TCGContext *s, TCGType type,
+                      TCGReg a0, TCGReg a1, TCGReg a2)
+{
+    tcg_out_opc_reg(s, OPC_MAX, a0, a1, a2);
+}
+
 static const TCGOutOpBinary outop_smax = {
-    .base.static_constraint = C_NotImplemented,
+    .base.static_constraint = C_Dynamic,
+    .base.dynamic_constraint = cset_zbb_rrr,
+    .out_rrr = tgen_smax,
 };
 
+static void tgen_smin(TCGContext *s, TCGType type,
+                      TCGReg a0, TCGReg a1, TCGReg a2)
+{
+    tcg_out_opc_reg(s, OPC_MIN, a0, a1, a2);
+}
+
 static const TCGOutOpBinary outop_smin = {
-    .base.static_constraint = C_NotImplemented,
+    .base.static_constraint = C_Dynamic,
+    .base.dynamic_constraint = cset_zbb_rrr,
+    .out_rrr = tgen_smin,
 };
 
+static void tgen_umax(TCGContext *s, TCGType type,
+                      TCGReg a0, TCGReg a1, TCGReg a2)
+{
+    tcg_out_opc_reg(s, OPC_MAXU, a0, a1, a2);
+}
+
 static const TCGOutOpBinary outop_umax = {
-    .base.static_constraint = C_NotImplemented,
+    .base.static_constraint = C_Dynamic,
+    .base.dynamic_constraint = cset_zbb_rrr,
+    .out_rrr = tgen_umax,
 };
 
+static void tgen_umin(TCGContext *s, TCGType type,
+                      TCGReg a0, TCGReg a1, TCGReg a2)
+{
+    tcg_out_opc_reg(s, OPC_MINU, a0, a1, a2);
+}
+
 static const TCGOutOpBinary outop_umin = {
-    .base.static_constraint = C_NotImplemented,
+    .base.static_constraint = C_Dynamic,
+    .base.dynamic_constraint = cset_zbb_rrr,
+    .out_rrr = tgen_umin,
 };
 
 static void tgen_xor(TCGContext *s, TCGType type,
-- 
2.43.0