Fix

commit 2d9587f26b
Author: WangLiangpu <wangjingpu17@mails.ucas.ac.cn>
Date:   Wed Nov 1 21:36:35 2023 +0800

    fix: fix tcg_out_dupi_vec interface conflicts

commit b957324d3d
Author: zhaodongru <zhaodongru@yeah.net>
Date:   Mon Oct 23 18:15:01 2023 +0800

    start loongarch compile

    fix: modify the code to pass compile

    add: add code for tcg_out_op, tcg_can_emit_vec_op, tcg_target_op_def to support new tcg_op

    fix: fix bugs related to epilogue and ret_addr

    fix: fix bug in qemu_ld_slow_path, the return register is wrong

qemu/include/tcg/tcg.h

@@ -815,6 +815,9 @@ struct TCGContext {
 
     char s390x_cpu_reg_names[16][4]; // renamed from original cpu_reg_names[][] to avoid name clash with m68k
     TCGv_i64 regs[16];
+
+    // loongarch 
+    bool use_lsx_instructions;
 };
 
 static inline size_t temp_idx(TCGContext *tcg_ctx, TCGTemp *ts)

qemu/tcg/loongarch64/tcg-target.h

@@ -97,8 +97,6 @@ typedef enum {
     TCG_VEC_TMP0 = TCG_REG_V23,
 } TCGReg;
 
-extern bool use_lsx_instructions;
-
 /* used for function call generation */
 #define TCG_REG_CALL_STACK              TCG_REG_SP
 #define TCG_TARGET_STACK_ALIGN          16
@@ -187,10 +185,11 @@ extern bool use_lsx_instructions;
 #define TCG_TARGET_HAS_mulsh_i64        1
 #define TCG_TARGET_HAS_direct_jump      0
 
-#define TCG_TARGET_HAS_qemu_ldst_i128   use_lsx_instructions
+// TODO: use_lsx_instructions?
+#define TCG_TARGET_HAS_qemu_ldst_i128   1
 
 #define TCG_TARGET_HAS_v64              0
-#define TCG_TARGET_HAS_v128             use_lsx_instructions
+#define TCG_TARGET_HAS_v128             1
 #define TCG_TARGET_HAS_v256             0
 
 #define TCG_TARGET_HAS_not_vec          1

qemu/tcg/loongarch64/tcg-target.inc.c

@@ -32,8 +32,6 @@
 #include "../tcg-ldst.inc.c"
 #include <asm/hwcap.h>
 
-bool use_lsx_instructions;
-
 #ifdef CONFIG_DEBUG_TCG
 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
     "zero",
@@ -2604,10 +2602,10 @@ static void tcg_target_init(TCGContext *s)
     }
 
     if (hwcap & HWCAP_LOONGARCH_LSX) {
-        use_lsx_instructions = 1;
+        s->use_lsx_instructions = 1;
     }
 #else
-    use_lsx_instructions = 1;
+    s->use_lsx_instructions = 1;
 #endif
 
     s->tcg_target_available_regs[TCG_TYPE_I32] = ALL_GENERAL_REGS;