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Re: [PATCH] tcg: Remove unused tcg_out_dupi_vec() stub

From: Philippe Mathieu-Daudé
Subject: Re: [PATCH] tcg: Remove unused tcg_out_dupi_vec() stub
Date: Sun, 10 Jan 2021 22:32:40 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0

On 1/10/21 7:23 PM, Richard Henderson wrote:
> On 1/9/21 6:10 PM, Wataru Ashihara wrote:
>> This fixes the build with --enable-tcg-interpreter:
>>   clang -Ilibqemu-arm-softmmu.fa.p -I. -I.. -Itarget/arm -I../target/arm 
>> -I../dtc/libfdt -I../capstone/include/capstone -Iqapi -Itrace -Iui 
>> -Iui/shader -I/usr/include/pixman-1 -I/usr/include/glib-2.0 
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -Xclang -fcolor-diagnostics 
>> -pipe -Wall -Winvalid-pch -Werror -std=gnu99 -g -m64 -mcx16 -D_GNU_SOURCE 
>> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes 
>> -Wredundant-decls -Wundef -Wwrite-strings -Wmissing-prototypes 
>> -fno-strict-aliasing -fno-common -fwrapv -Wold-style-definition 
>> -Wtype-limits -Wformat-security -Wformat-y2k -Winit-self 
>> -Wignored-qualifiers -Wempty-body -Wnested-externs -Wendif-labels 
>> -Wexpansion-to-defined -Wno-initializer-overrides -Wno-missing-include-dirs 
>> -Wno-shift-negative-value -Wno-string-plus-int -Wno-typedef-redefinition 
>> -Wno-tautological-type-limit-compare -fstack-protector-strong -isystem 
>> /home/wsh/qc/qemu/linux-headers -isystem linux-headers -iquote 
>> /home/wsh/qc/qemu/tcg/tci -iquote . -iquote /home/wsh/qc/qemu -iquote 
>> /home/wsh/qc/qemu/accel/tcg -iquote /home/wsh/qc/qemu/include -iquote 
>> /home/wsh/qc/qemu/disas/libvixl -pthread -fPIC -isystem../linux-headers 
>> -isystemlinux-headers -DNEED_CPU_H 
>> '-DCONFIG_TARGET="arm-softmmu-config-target.h"' 
>> '-DCONFIG_DEVICES="arm-softmmu-config-devices.h"' -MD -MQ 
>> libqemu-arm-softmmu.fa.p/tcg_tcg.c.o -MF 
>> libqemu-arm-softmmu.fa.p/tcg_tcg.c.o.d -o 
>> libqemu-arm-softmmu.fa.p/tcg_tcg.c.o -c ../tcg/tcg.c
>>   ../tcg/tcg.c:136:20: error: unused function 'tcg_out_dupi_vec' 
>> [-Werror,-Wunused-function]
> What version of clang?
> With clang 10, I can't even run configure without --disable-werror.

clang version 10.0.1 (Fedora 10.0.1-3.fc32)

I tested using:

../configure '--cc=clang' '--cxx=clang++' \
 '--extra-cflags=-Wunused-function' '--enable-tcg-interpreter' \
 '--disable-tools' '--target-list=arm-softmmu'

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