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From: Brian Cain <bcain@quicinc.com>
To: <qemu-devel@nongnu.org>
Cc: <bcain@quicinc.com>, <armbru@redhat.com>,
	<richard.henderson@linaro.org>,  <philmd@linaro.org>,
	<peter.maydell@linaro.org>, <quic_mathbern@quicinc.com>,
	<stefanha@redhat.com>, <ale@rev.ng>, <anjo@rev.ng>,
	<quic_mliebel@quicinc.com>, <ltaylorsimpson@gmail.com>
Subject: [PULL 15/15] target/hexagon: reduce scope of def_regnum, remove dead assignment
Date: Sun, 21 Jan 2024 22:35:01 -0800	[thread overview]
Message-ID: <20240122063501.782041-16-bcain@quicinc.com> (raw)
In-Reply-To: <20240122063501.782041-1-bcain@quicinc.com>

This is intended to address a coverity finding: CID 1527408.

Signed-off-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <20240114234453.4114587-1-bcain@quicinc.com>
---
 target/hexagon/mmvec/decode_ext_mmvec.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/target/hexagon/mmvec/decode_ext_mmvec.c b/target/hexagon/mmvec/decode_ext_mmvec.c
index 174eb3b78b..202d84c7c0 100644
--- a/target/hexagon/mmvec/decode_ext_mmvec.c
+++ b/target/hexagon/mmvec/decode_ext_mmvec.c
@@ -33,7 +33,6 @@ check_new_value(Packet *pkt)
     const char *dststr = NULL;
     uint16_t def_opcode;
     char letter;
-    int def_regnum;
 
     for (i = 1; i < pkt->num_insns; i++) {
         uint16_t use_opcode = pkt->insn[i].opcode;
@@ -78,7 +77,6 @@ check_new_value(Packet *pkt)
                 }
             }
             if ((dststr == NULL)  && GET_ATTRIB(def_opcode, A_CVI_GATHER)) {
-                def_regnum = 0;
                 pkt->insn[i].regno[use_regidx] = def_oreg;
                 pkt->insn[i].new_value_producer_slot = pkt->insn[def_idx].slot;
             } else {
@@ -86,7 +84,7 @@ check_new_value(Packet *pkt)
                     /* still not there, we have a bad packet */
                     g_assert_not_reached();
                 }
-                def_regnum = pkt->insn[def_idx].regno[dststr - reginfo];
+                int def_regnum = pkt->insn[def_idx].regno[dststr - reginfo];
                 /* Now patch up the consumer with the register number */
                 pkt->insn[i].regno[use_regidx] = def_regnum ^ def_oreg;
                 /* special case for (Vx,Vy) */
-- 
2.25.1


  parent reply	other threads:[~2024-01-22  6:36 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-22  6:34 [PULL 00/15] target-hexagon queue, hexagon docker Brian Cain
2024-01-22  6:34 ` [PULL 01/15] tests/docker: Hexagon toolchain update Brian Cain
2024-01-22  6:34 ` [PULL 02/15] Hexagon (target/hexagon) Fix shadow variable when idef-parser is off Brian Cain
2024-01-22  6:34 ` [PULL 03/15] Hexagon (target/hexagon) Clean up handling of modifier registers Brian Cain
2024-01-22  6:34 ` [PULL 04/15] Hexagon (target/hexagon) Make generators object oriented - gen_tcg_funcs Brian Cain
2024-01-22  6:34 ` [PULL 05/15] Hexagon (target/hexagon) Make generators object oriented - gen_helper_protos Brian Cain
2024-01-22  6:34 ` [PULL 06/15] Hexagon (target/hexagon) Make generators object oriented - gen_helper_funcs Brian Cain
2024-01-22  6:34 ` [PULL 07/15] Hexagon (target/hexagon) Make generators object oriented - gen_idef_parser_funcs Brian Cain
2024-01-22  6:34 ` [PULL 08/15] Hexagon (target/hexagon) Make generators object oriented - gen_op_regs Brian Cain
2024-01-22  6:34 ` [PULL 09/15] Hexagon (target/hexagon) Make generators object oriented - gen_analyze_funcs Brian Cain
2024-01-22  6:34 ` [PULL 10/15] Hexagon (target/hexagon) Remove unused WRITES_PRED_REG attribute Brian Cain
2024-01-22  6:34 ` [PULL 11/15] Hexagon (target/hexagon) Remove dead functions from hex_common.py Brian Cain
2024-01-22  6:34 ` [PULL 12/15] Hexagon (target/hexagon) Use QEMU decodetree (32-bit instructions) Brian Cain
2024-01-22  6:34 ` [PULL 13/15] Hexagon (target/hexagon) Use QEMU decodetree (16-bit instructions) Brian Cain
2024-01-22  6:35 ` [PULL 14/15] Hexagon (target/hexagon) Remove old dectree.py Brian Cain
2024-01-22  6:35 ` Brian Cain [this message]
2024-01-23 16:37 ` [PULL 00/15] target-hexagon queue, hexagon docker Peter Maydell

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