tci: Add implementation of rotl_i64, rotr_i64

It is used by qemu-ppc64 when running Debian's busybox-static.

Cc: qemu-stable <qemu-stable@nongnu.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
(cherry picked from commit d285bf784b6234e994ce73c05c82c9fb6429df00)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

diff --git a/tcg/tci/tcg-target.c b/tcg/tci/tcg-target.c
index e118bc7179bfa3f361e7498e6c75f88f51a4df9c..7f86a7ff33a6098ea431c32d627839f5eca9a150 100644 (file)
--- a/tcg/tci/tcg-target.c
+++ b/tcg/tci/tcg-target.c
@@ -677,7 +677,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
     case INDEX_op_shl_i64:
     case INDEX_op_shr_i64:
     case INDEX_op_sar_i64:
-        /* TODO: Implementation of rotl_i64, rotr_i64 missing in tci.c. */
     case INDEX_op_rotl_i64:     /* Optional (TCG_TARGET_HAS_rot_i64). */
     case INDEX_op_rotr_i64:     /* Optional (TCG_TARGET_HAS_rot_i64). */
         tcg_out_r(s, args[0]);

diff --git a/tci.c b/tci.c
index af58576a2c47daaa63e0e4dc15c789ecd38d5755..b09ad256c3bbb277cca392d6b3072747e0a51998 100644 (file)
--- a/tci.c
+++ b/tci.c
@@ -952,8 +952,16 @@ tcg_target_ulong tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr)
             break;
 #if TCG_TARGET_HAS_rot_i64
         case INDEX_op_rotl_i64:
+            t0 = *tb_ptr++;
+            t1 = tci_read_ri64(&tb_ptr);
+            t2 = tci_read_ri64(&tb_ptr);
+            tci_write_reg64(t0, (t1 << t2) | (t1 >> (64 - t2)));
+            break;
         case INDEX_op_rotr_i64:
-            TODO();
+            t0 = *tb_ptr++;
+            t1 = tci_read_ri64(&tb_ptr);
+            t2 = tci_read_ri64(&tb_ptr);
+            tci_write_reg64(t0, (t1 >> t2) | (t1 << (64 - t2)));
             break;
 #endif
 #if TCG_TARGET_HAS_deposit_i64