[PULL 09/30] Hexagon HVX (target/hexagon) C preprocessor for decode tree

From: Taylor Simpson <tsimpson@quicinc.com>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, tsimpson@quicinc.com,
	richard.henderson@linaro.org, f4bug@amsat.org
Subject: [PULL 09/30] Hexagon HVX (target/hexagon) C preprocessor for decode tree
Date: Sun, 31 Oct 2021 11:42:48 -0500	[thread overview]
Message-ID: <1635698589-31849-10-git-send-email-tsimpson@quicinc.com> (raw)
In-Reply-To: <1635698589-31849-1-git-send-email-tsimpson@quicinc.com>

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
---
 target/hexagon/gen_dectree_import.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/target/hexagon/gen_dectree_import.c b/target/hexagon/gen_dectree_import.c
index 5b7ecfc..ee35467 100644
--- a/target/hexagon/gen_dectree_import.c
+++ b/target/hexagon/gen_dectree_import.c
@@ -40,6 +40,11 @@ const char * const opcode_names[] = {
  *         Q6INSN(A2_add,"Rd32=add(Rs32,Rt32)",ATTRIBS(),
  *         "Add 32-bit registers",
  *         { RdV=RsV+RtV;})
+ *     HVX instructions have the following form
+ *         EXTINSN(V6_vinsertwr, "Vx32.w=vinsert(Rt32)",
+ *         ATTRIBS(A_EXTENSION,A_CVI,A_CVI_VX,A_CVI_LATE),
+ *         "Insert Word Scalar into Vector",
+ *         VxV.uw[0] = RtV;)
  */
 const char * const opcode_syntax[XX_LAST_OPCODE] = {
 #define Q6INSN(TAG, BEH, ATTRIBS, DESCR, SEM) \
@@ -105,6 +110,14 @@ static const char *get_opcode_enc(int opcode)
 
 static const char *get_opcode_enc_class(int opcode)
 {
+    const char *tmp = opcode_encodings[opcode].encoding;
+    if (tmp == NULL) {
+        const char *test = "V6_";        /* HVX */
+        const char *name = opcode_names[opcode];
+        if (strncmp(name, test, strlen(test)) == 0) {
+            return "EXT_mmvec";
+        }
+    }
     return opcode_enc_class_names[opcode_encodings[opcode].enc_class];
 }
 
-- 
2.7.4

