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target/i386: Fix compiler warnings 

These gcc warnings are fixed:

target/i386/translate.c:4461:12: warning:
 variable 'prefixes' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]
target/i386/translate.c:4466:9: warning:
 variable 'rex_w' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]
target/i386/translate.c:4466:16: warning:
 variable 'rex_r' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]

Tested with x86_64-w64-mingw32-gcc from Debian stretch.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20171113064845.29142-1-sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Stefan Weil 2017-11-13 07:48:45 +01:00 committed by Paolo Bonzini
parent d84be02d69
commit a4926d9912
1 changed files with 4 additions and 3 deletions
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7
target/i386/translate.c
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@ -4467,10 +4467,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu)
target_ulong pc_start = s->base.pc_next;
s->pc_start = s->pc = pc_start;
prefixes = 0;
s->override = -1;
rex_w = -1;
rex_r = 0;
#ifdef TARGET_X86_64
s->rex_x = 0;
s->rex_b = 0;
@ -4484,6 +4481,10 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu)
return s->pc;
}
prefixes = 0;
rex_w = -1;
rex_r = 0;
next_byte:
b = x86_ldub_code(env, s);
/* Collect prefixes. */