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Avoid "variable 'bits' set but not used [-Wunused-but-set-variable]"

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warnings with gcc-4.6, by not setting bits when the result is not
used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105790 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2010-06-10 16:23:15 +00:00
parent 39dea6ff76
commit fc6afa92d6
1 changed files with 6 additions and 10 deletions
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16
lib/System/Disassembler.cpp
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@ -44,33 +44,29 @@ std::string llvm::sys::disassembleBuffer(uint8_t* start, size_t length,
uint64_t pc) {
std::stringstream res;
#if defined (__i386__) || defined (__amd64__) || defined (__x86_64__)
#if (defined (__i386__) || defined (__amd64__) || defined (__x86_64__)) \
&& USE_UDIS86
unsigned bits;
# if defined(__i386__)
bits = 32;
# else
bits = 64;
# endif
# if USE_UDIS86
ud_t ud_obj;
ud_init(&ud_obj);
ud_set_input_buffer(&ud_obj, start, length);
ud_set_mode(&ud_obj, bits);
ud_set_pc(&ud_obj, pc);
ud_set_syntax(&ud_obj, UD_SYN_ATT);
res << std::setbase(16)
<< std::setw(bits/4);
while (ud_disassemble(&ud_obj)) {
res << ud_insn_off(&ud_obj) << ":\t" << ud_insn_asm(&ud_obj) << "\n";
}
# else
res << "No disassembler available. See configure help for options.\n";
# endif
#else
res << "No disassembler available. See configure help for options.\n";
#endif