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[DFSan] Add UnaryOperator visitor to DataFlowSanitizer

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Differential Revision: https://reviews.llvm.org/D62815

llvm-svn: 363814
This commit is contained in:
Cameron McInally 2019-06-19 15:11:41 +00:00
parent d874f8826a
commit e4e6a3000e
2 changed files with 15 additions and 0 deletions
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5
lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
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@ -437,6 +437,7 @@ public:
} }
void visitOperandShadowInst(Instruction &I); void visitOperandShadowInst(Instruction &I);
void visitUnaryOperator(UnaryOperator &UO);
void visitBinaryOperator(BinaryOperator &BO); void visitBinaryOperator(BinaryOperator &BO);
void visitCastInst(CastInst &CI); void visitCastInst(CastInst &CI);
void visitCmpInst(CmpInst &CI); void visitCmpInst(CmpInst &CI);
@ -1398,6 +1399,10 @@ void DFSanVisitor::visitStoreInst(StoreInst &SI) {
DFSF.storeShadow(SI.getPointerOperand(), Size, Align, Shadow, &SI); DFSF.storeShadow(SI.getPointerOperand(), Size, Align, Shadow, &SI);
} }
void DFSanVisitor::visitUnaryOperator(UnaryOperator &UO) {
visitOperandShadowInst(UO);
}
void DFSanVisitor::visitBinaryOperator(BinaryOperator &BO) { void DFSanVisitor::visitBinaryOperator(BinaryOperator &BO) {
visitOperandShadowInst(BO); visitOperandShadowInst(BO);
} }

10
test/Instrumentation/DataFlowSanitizer/arith.ll
View File

@ -62,3 +62,13 @@ define i8 @udiv(i8 %a, i8 %b) {
%c = udiv i8 %a, %b %c = udiv i8 %a, %b
ret i8 %c ret i8 %c
} }
define double @fneg(double %a) {
; CHECK: @"dfs$fneg"
; CHECK: load{{.*}}__dfsan_arg_tls
; CHECK: fneg double
; CHECK: store{{.*}}__dfsan_retval_tls
; CHECK: ret double
%c = fneg double %a
ret double %c
}