Merge tag 'pull-tcg-20230105' of https://gitlab.com/rth7680/qemu into staging

Fix race conditions in new user-only vma tracking.
Add tcg backend paired register allocation.
Cleanup tcg backend function call abi.

# gpg: Signature made Fri 06 Jan 2023 03:12:17 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-tcg-20230105' of https://gitlab.com/rth7680/qemu: (47 commits)
  tests/tcg/multiarch: add vma-pthread.c
  accel/tcg: Handle false negative lookup in page_check_range
  accel/tcg: Use g_free_rcu for user-exec interval trees
  accel/tcg: Fix tb_invalidate_phys_page_unwind
  tcg: Add TCGHelperInfo argument to tcg_out_call
  tcg/aarch64: Merge tcg_out_callr into tcg_out_call
  tcg: Move ffi_cif pointer into TCGHelperInfo
  tcg: Factor init_ffi_layouts() out of tcg_context_init()
  tcg: Convert typecode_to_ffi from array to function
  tcg: Reorg function calls
  tcg: Use output_pref wrapper function
  tcg: Vary the allocation size for TCGOp
  tcg: Pass number of arguments to tcg_emit_op() / tcg_op_insert_*()
  accel/tcg/plugin: Use copy_op in append_{udata,mem}_cb
  accel/tcg/plugin: Avoid duplicate copy in copy_call
  accel/tcg/plugin: Don't search for the function pointer index
  tcg: Use TCG_CALL_ARG_EVEN for TCI special case
  tcg: Replace TCG_TARGET_EXTEND_ARGS with TCG_TARGET_CALL_ARG_I32
  tcg: Replace TCG_TARGET_CALL_ALIGN_ARGS with TCG_TARGET_CALL_ARG_I64
  tcg: Introduce TCGCallReturnKind and TCGCallArgumentKind
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 4 insertions, 6 deletions

diff --git a/tcg/optimize.c b/tcg/optimize.c
index ae081ab..763bca9 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -667,9 +667,7 @@ static void init_arguments(OptContext *ctx, TCGOp *op, int nb_args)
 {
     for (int i = 0; i < nb_args; i++) {
         TCGTemp *ts = arg_temp(op->args[i]);
-        if (ts) {
-            init_ts_info(ctx, ts);
-        }
+        init_ts_info(ctx, ts);
     }
 }
 
@@ -680,7 +678,7 @@ static void copy_propagate(OptContext *ctx, TCGOp *op,
 
     for (int i = nb_oargs; i < nb_oargs + nb_iargs; i++) {
         TCGTemp *ts = arg_temp(op->args[i]);
-        if (ts && ts_is_copy(ts)) {
+        if (ts_is_copy(ts)) {
             op->args[i] = temp_arg(find_better_copy(s, ts));
         }
     }
@@ -962,7 +960,7 @@ static bool fold_addsub2(OptContext *ctx, TCGOp *op, bool add)
         rh = op->args[1];
 
         /* The proper opcode is supplied by tcg_opt_gen_mov. */
-        op2 = tcg_op_insert_before(ctx->tcg, op, 0);
+        op2 = tcg_op_insert_before(ctx->tcg, op, 0, 2);
 
         tcg_opt_gen_movi(ctx, op, rl, al);
         tcg_opt_gen_movi(ctx, op2, rh, ah);
@@ -1613,7 +1611,7 @@ static bool fold_multiply2(OptContext *ctx, TCGOp *op)
         rh = op->args[1];
 
         /* The proper opcode is supplied by tcg_opt_gen_mov. */
-        op2 = tcg_op_insert_before(ctx->tcg, op, 0);
+        op2 = tcg_op_insert_before(ctx->tcg, op, 0, 2);
 
         tcg_opt_gen_movi(ctx, op, rl, l);
         tcg_opt_gen_movi(ctx, op2, rh, h);