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util: handle missing register mapping gracefully

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It's OK if we cannot map every register LLVM knows to a Fail register
ID, but we need to explicitly skip these cases in the
RegisterImporter.

Change-Id: I2152f819fb94aa4de5720c5798b229b66988d382
This commit is contained in:
Horst Schirmeier
2013-09-02 12:09:00 +02:00
parent 89aff7df65
commit 11513ef78d
3 changed files with 21 additions and 2 deletions
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13
tools/import-trace/RegisterImporter.cc
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@ -130,6 +130,12 @@ bool RegisterImporter::handle_ip_event(fail::simtime_t curtime, instruction_coun
for (std::vector<LLVMDisassembler::register_t>::const_iterator it = opcode.reg_uses.begin();
it != opcode.reg_uses.end(); ++it) {
const LLVMtoFailTranslator::reginfo_t &info = ltof.getFailRegisterID(*it);
if (&info == &ltof.notfound) {
LOG << "Could not find a mapping for LLVM input register #" << std::dec << *it
<< " at IP " << std::hex << ev.ip()
<< ", skipping" << std::endl;
continue;
}
/* if not tracing flags, but flags register -> ignore it
if not tracing gp, but ! flags -> ignore it*/
@ -146,6 +152,13 @@ bool RegisterImporter::handle_ip_event(fail::simtime_t curtime, instruction_coun
for (std::vector<LLVMDisassembler::register_t>::const_iterator it = opcode.reg_defs.begin();
it != opcode.reg_defs.end(); ++it) {
const LLVMtoFailTranslator::reginfo_t &info = ltof.getFailRegisterID(*it);
if (&info == &ltof.notfound) {
LOG << "Could not find a mapping for LLVM output register #" << std::dec << *it
<< " at IP " << std::hex << ev.ip()
<< ", skipping" << std::endl;
continue;
}
/* if not tracing flags, but flags register -> ignore it
if not tracing gp, but ! flags -> ignore it*/
if (info.id == RID_FLAGS && !do_flags)