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fix issue #155 AFL_LLVM_LAF_SPLIT_FLOATS breaks bogofilter

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added some forgotten floating point comparison types
This commit is contained in:
hexcoder- 2019-12-27 20:13:00 +01:00
parent 29bbe0aebe
commit 064cd3315c
1 changed files with 8 additions and 0 deletions
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8
llvm_mode/split-compares-pass.so.cc
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@ -470,7 +470,9 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
if (selectcmpInst->getPredicate() == CmpInst::FCMP_OEQ ||
selectcmpInst->getPredicate() == CmpInst::FCMP_ONE ||
selectcmpInst->getPredicate() == CmpInst::FCMP_UNE ||
selectcmpInst->getPredicate() == CmpInst::FCMP_UGT ||
selectcmpInst->getPredicate() == CmpInst::FCMP_OGT ||
selectcmpInst->getPredicate() == CmpInst::FCMP_ULT ||
selectcmpInst->getPredicate() == CmpInst::FCMP_OLT) {
auto op0 = selectcmpInst->getOperand(0);
@ -655,6 +657,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_NE, m_e0, m_e1);
break;
case CmpInst::FCMP_OGT:
case CmpInst::FCMP_UGT:
Instruction *icmp_exponent;
icmp_exponent =
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_UGT, m_e0, m_e1);
@ -664,6 +667,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
BinaryOperator::Create(Instruction::Xor, icmp_exponent, t_s0);
break;
case CmpInst::FCMP_OLT:
case CmpInst::FCMP_ULT:
icmp_exponent =
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_ULT, m_e0, m_e1);
signequal_bb->getInstList().insert(
@ -755,6 +759,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_NE, t_f0, t_f1);
break;
case CmpInst::FCMP_OGT:
case CmpInst::FCMP_UGT:
Instruction *icmp_fraction;
icmp_fraction =
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_UGT, t_f0, t_f1);
@ -764,6 +769,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
BinaryOperator::Create(Instruction::Xor, icmp_fraction, t_s0);
break;
case CmpInst::FCMP_OLT:
case CmpInst::FCMP_ULT:
icmp_fraction =
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_ULT, t_f0, t_f1);
middle_bb->getInstList().insert(
@ -802,6 +808,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
PN->addIncoming(icmp_fraction_result, middle_bb);
break;
case CmpInst::FCMP_OGT:
case CmpInst::FCMP_UGT:
/* if op1 is negative goto true branch,
else go on comparing */
PN->addIncoming(t_s1, bb);
@ -809,6 +816,7 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
PN->addIncoming(icmp_fraction_result, middle_bb);
break;
case CmpInst::FCMP_OLT:
case CmpInst::FCMP_ULT:
/* if op0 is negative goto true branch,
else go on comparing */
PN->addIncoming(t_s0, bb);