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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.180.131; envelope-from=brian.cain@oss.qualcomm.com; helo=mx0b-0031df01.pphosted.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.819, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.903, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @qualcomm.com) X-ZM-MESSAGEID: 1773201286984154100 The analyze_read() methods on GuestSource, GuestPairSource, SystemSource, and SystemPairSource were no-ops because these source registers do not need read-tracking in the analyze phase. However, gen_analyze_funcs.py unconditionally declares the register-number variable (e.g. GsN) via decl_reg_num() for all registers that are read or written. When building with hexagon-softmmu, the generated analyze function bodies are compiled (outside the #ifndef CONFIG_USER_ONLY guard), and the declared-but-unreferenced register-number variable triggers -Werror=3Dunused-variable under both gcc and clang. Emit a (void) cast on the register number from analyze_read() to suppress the warning. Signed-off-by: Brian Cain Reviewed-by: Taylor Simpson --- target/hexagon/hex_common.py | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/target/hexagon/hex_common.py b/target/hexagon/hex_common.py index ceb4b6812d6..1daf7239fc4 100755 --- a/target/hexagon/hex_common.py +++ b/target/hexagon/hex_common.py @@ -1068,6 +1068,10 @@ def analyze_write(self, f, tag, regno): """)) =20 class GuestSource(GuestRegister, Single, OldSource): + def decl_reg_num(self, f, regno): + f.write(code_fmt(f"""\ + const int {self.reg_num} G_GNUC_UNUSED =3D insn->regno[{regno}= ]; + """)) def decl_tcg(self, f, tag, regno): self.decl_reg_num(f, regno) f.write(code_fmt(f"""\ @@ -1093,6 +1097,10 @@ def analyze_write(self, f, tag, regno): """)) =20 class GuestPairSource(GuestRegister, Pair, OldSource): + def decl_reg_num(self, f, regno): + f.write(code_fmt(f"""\ + const int {self.reg_num} G_GNUC_UNUSED =3D insn->regno[{regno}= ]; + """)) def decl_tcg(self, f, tag, regno): self.decl_reg_num(f, regno) f.write(code_fmt(f"""\ @@ -1118,6 +1126,10 @@ def analyze_write(self, f, tag, regno): """)) =20 class SystemSource(Register, Single, OldSource): + def decl_reg_num(self, f, regno): + f.write(code_fmt(f"""\ + const int {self.reg_num} G_GNUC_UNUSED =3D insn->regno[{regno}= ]; + """)) def decl_tcg(self, f, tag, regno): self.decl_reg_num(f, regno) f.write(code_fmt(f"""\ @@ -1143,6 +1155,10 @@ def analyze_write(self, f, tag, regno): """)) =20 class SystemPairSource(Register, Pair, OldSource): + def decl_reg_num(self, f, regno): + f.write(code_fmt(f"""\ + const int {self.reg_num} G_GNUC_UNUSED =3D insn->regno[{regno}= ]; + """)) def decl_tcg(self, f, tag, regno): self.decl_reg_num(f, regno) f.write(code_fmt(f"""\ --=20 2.34.1