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libvixl: Avoid std::abs() of 64-bit type

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The std::abs() function did not get a version that works on
'long long' until C++11. Avoid it, so that we can compile on
32-bit platforms (where int64_t is 'long long') with older
compilers (which don't support C++11).

Reported-by: Franz-Josef Haider <Franz-Josef.Haider@student.uibk.ac.at>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1453739429-31477-1-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2016-02-03 13:46:34 +00:00
parent 6d152ebaf4
commit 0602f420e4
1 changed files with 5 additions and 1 deletions
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6
disas/libvixl/vixl/a64/disasm-a64.cc
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@ -2688,8 +2688,12 @@ void Disassembler::AppendRegisterNameToOutput(const Instruction* instr,
void Disassembler::AppendPCRelativeOffsetToOutput(const Instruction* instr,
int64_t offset) {
USE(instr);
uint64_t abs_offset = offset;
char sign = (offset < 0) ? '-' : '+';
AppendToOutput("#%c0x%" PRIx64, sign, std::abs(offset));
if (offset < 0) {
abs_offset = -abs_offset;
}
AppendToOutput("#%c0x%" PRIx64, sign, abs_offset);
}