[Qemu-devel] [RFC PATCH v3 20/46] target/i386: introduce tcg_temp operands

[Jan Bobek]

TCG temporary operands allocate a 32-bit or 64-bit TCG temporary, and
later automatically free it.

Signed-off-by: Jan Bobek <address@hidden>
---
 target/i386/translate.c | 44 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/target/i386/translate.c b/target/i386/translate.c
index 99f46be34e..7fc5149d29 100644
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -4696,6 +4696,50 @@ static int ck_cpuid(CPUX86State *env, DisasContext *s, 
CkCpuidFeat feat)
         insnop_finalize(opTarg)(&ctxt->arg, env, s, modrm, is_write, arg); \
     }
 
+/*
+ * tcg_temp_i32
+ *
+ * Operand which allocates a 32-bit TCG temporary and frees it
+ * automatically after use.
+ */
+typedef TCGv_i32 insnop_arg_t(tcg_temp_i32);
+typedef struct {} insnop_ctxt_t(tcg_temp_i32);
+
+INSNOP_INIT(tcg_temp_i32)
+{
+    return 0;
+}
+INSNOP_PREPARE(tcg_temp_i32)
+{
+    return tcg_temp_new_i32();
+}
+INSNOP_FINALIZE(tcg_temp_i32)
+{
+    tcg_temp_free_i32(arg);
+}
+
+/*
+ * tcg_temp_i64
+ *
+ * Operand which allocates a 64-bit TCG temporary and frees it
+ * automatically after use.
+ */
+typedef TCGv_i64 insnop_arg_t(tcg_temp_i64);
+typedef struct {} insnop_ctxt_t(tcg_temp_i64);
+
+INSNOP_INIT(tcg_temp_i64)
+{
+    return 0;
+}
+INSNOP_PREPARE(tcg_temp_i64)
+{
+    return tcg_temp_new_i64();
+}
+INSNOP_FINALIZE(tcg_temp_i64)
+{
+    tcg_temp_free_i64(arg);
+}
+
 static void gen_sse_ng(CPUX86State *env, DisasContext *s, int b)
 {
     enum {
-- 
2.20.1