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092beb8b73cc23c20f568246fb8e6568d51ed608
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6695 Commits

Author SHA1 Message Date
Mathias Vorreiter Pedersen
092beb8b73 C++: Don't count write operations as uses. 2021-11-02 10:59:34 +00:00
Mathias Vorreiter Pedersen
d34e731f1d C++: Add a small QLDoc novel above the IPA type for 'TIRDataFlowNode'. 2021-10-30 11:29:07 +01:00
Mathias Vorreiter Pedersen
d624259eab C++: Add QLDoc to 'flowOutOfAddressStep'. 2021-10-30 10:46:39 +01:00
Mathias Vorreiter Pedersen
a75f195df3 C++: Several readability fixes: 
1. Added lots of QLDoc explanation about the role of StoreNodeOperand.
  2. Renamed '{StoreNode,ReadNode}.getAPredecessor' to 'getInner' and
     '{StoreNode,ReadNode}.getASuccessor' to 'getOuter'.
  3. Be more explicit about which type of 'StoreNode' is used in various
     places.
 2021-10-30 10:24:06 +01:00
Mathias Vorreiter Pedersen
f334201fce Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll 
Co-authored-by: Jonas Jensen <jbj@github.com>
 2021-10-30 10:04:17 +01:00
Mathias Vorreiter Pedersen
cb4f10c609 C++: Move the union field check to the IPA branch of 'TFieldContent'. 2021-10-30 10:04:17 +01:00
Mathias Vorreiter Pedersen
8a569da370 C++: Fix comments. 2021-10-29 14:05:34 +01:00
Mathias Vorreiter Pedersen
490156d7db C++: Remove the 'isIndirection' predicate on 'SourceVariable' and move the rootdef of 'getIRVariable' into the two subclasses. 2021-10-28 17:26:28 +01:00
Mathias Vorreiter Pedersen
05900cda87 C++: Rename 'Ssa' to 'SsaInternals' and move definitions from 'SSaImplSpecific' to 'SsaInternals'. Now we can avoid cyclic imports. 2021-10-28 17:10:48 +01:00
Mathias Vorreiter Pedersen
675e284c0e C++: A 'LoadInstruction' in a store chain always sets 'certain = false'. 2021-10-28 14:52:57 +01:00
Mathias Vorreiter Pedersen
ee2541c3bc C++: Fix QLDoc on 'getDestinationAddress'. 2021-10-28 14:12:22 +01:00
Mathias Vorreiter Pedersen
cde80ccf83 Replace 'hasLocationInfo' with 'getLocation'. 2021-10-28 14:09:26 +01:00
Mathias Vorreiter Pedersen
387c96d1e2 Rename 'SourceVariable.getVariable' to 'SourceVariable.getIRVariable' and replace 'Def.getVariable' to 'Def.getSourceVariable'. 2021-10-28 14:00:50 +01:00
Mathias Vorreiter Pedersen
12e0185b0d C++: Sync identical files. 2021-10-28 12:36:36 +01:00
Mathias Vorreiter Pedersen
2cd23e5ee0 Accept test changes. 2021-10-28 12:36:36 +01:00
Mathias Vorreiter Pedersen
8135dcefdd Merge branch 'main' into use-shared-ssa-in-ir-dataflow 2021-10-28 12:36:25 +01:00
Mathias Vorreiter Pedersen
521d863429 C++: Autoformat. 2021-10-28 12:35:01 +01:00
Mathias Vorreiter Pedersen
2547a8d746 C++: Fix join orders in 'DataFlowDispatch.qll' and Ssa.qll. 2021-10-28 12:35:01 +01:00
Mathias Vorreiter Pedersen
21a1ee7758 C++: Add annoying case in SSA.qll related to 'NewExpr' and accept test changes. 2021-10-28 12:35:01 +01:00
Mathias Vorreiter Pedersen
3efe60fdd2 C++: Accept test changes. 2021-10-28 12:35:01 +01:00
Mathias Vorreiter Pedersen
5dbaea8b52 C++: Add a special dataflow step from InitializeIndirection instructions. 2021-10-28 12:35:01 +01:00
Mathias Vorreiter Pedersen
b1ea00fa85 C++: Remove the taintflow edges that gives performance problems. 2021-10-28 12:35:01 +01:00
Mathias Vorreiter Pedersen
710d0cfc3d C++: Since we now no longer have flow from exact memory operands to LoadInstructions, we no longer have flow from PhiInstructions to LoadInstructions. We could allow flow in this particular case, but we might as well use the shared SSA library's phi edges. 2021-10-28 12:35:00 +01:00
Mathias Vorreiter Pedersen
8caff41138 C++: Throw away most of the usage of IR-computed def-use information. Instead, we rely on the shared SSA library's use-use edges. 2021-10-28 12:35:00 +01:00
Mathias Vorreiter Pedersen
3a488574e5 C++: Rewrite the PartialDefinitionNode classes to match the new StoreNodes. 2021-10-28 12:35:00 +01:00
Mathias Vorreiter Pedersen
8bef79502f C++: Similarly to the previous commit, we throw away the old memory-edges based way of doing read steps. Instead, we use the shared SSA library to transfer flow into a new ReadNode IPA branch, perform the necessary read steps, and then use the shared SSA library to transfer flow out of the ReadNode again. 2021-10-28 12:35:00 +01:00
Mathias Vorreiter Pedersen
5ebefe2d30 C++: Throw away the old way of doing store steps using memory edges. Instead, we introduce a StoreNode IPA branch that does store steps and instead use the shared SSA library to transfer flow into these nodes before a store step, and out of them following a sequence of store steps. 2021-10-28 12:35:00 +01:00
Mathias Vorreiter Pedersen
1842fed7a2 C++: Add shared SSA library and instantiate it with the IR. 2021-10-28 10:52:09 +01:00
Mathias Vorreiter Pedersen
13ce2569d7 C++/C#: Sync identical IR files· 2021-10-28 10:52:00 +01:00
Mathias Vorreiter Pedersen
bccd4e9e93 C++: Add 'getReturnAddress' and 'getReturnAddressOperand' predicates to 'ReturnValueInstruction'. 2021-10-28 10:51:49 +01:00
Mathias Vorreiter Pedersen
7feab27bf4 Merge pull request #6926 from geoffw0/setliterals2 
C++: Use set literals (more).
 2021-10-20 14:58:06 +01:00
Geoffrey White
da412178ce C++: Use set literals (more). 2021-10-20 14:18:27 +01:00
Tom Hvitved
0bf5238f39 Update QL doc for allowParameterReturnInSelf 2021-10-20 12:08:58 +02:00
Tom Hvitved
dd138b0429 Address review comments 2021-10-20 12:08:58 +02:00
Tom Hvitved
a1511e13d8 Data flow: Sync files 2021-10-20 12:08:57 +02:00
Jonas Jensen
7015be7cad Merge pull request #6916 from geoffw0/fixnotbound 
C++: Fix unbound variables in PrivateCleartextWrite.qll.
 2021-10-19 16:46:42 +02:00
Geoffrey White
38257a58f0 C++: Fix unbound variables in PrivateCleartextWrite.qll. 2021-10-19 15:01:32 +01:00
Geoffrey White
3f3c79f48f Merge pull request #6884 from geoffw0/setliterals 
Replace or chains with set literals.
 2021-10-18 16:46:55 +01:00
Anders Schack-Mulligen
b67032d1cc Merge pull request #6891 from erik-krogh/fix-java-this 
add explicit this qualifier on all of java
 2021-10-18 17:13:37 +02:00
Tom Hvitved
a10bde5795 Merge pull request #6872 from hvitved/dataflow/path-into-callable0-join 
Data flow: Performance tweaks
 2021-10-18 16:25:10 +02:00
Tom Hvitved
e6954292aa Address review comments 2021-10-18 14:09:44 +02:00
Anders Schack-Mulligen
91ea064980 Sync 2021-10-18 14:04:50 +02:00
Jonas Jensen
493a37ba5e Merge pull request #6903 from MathiasVP/remove-implicit-this-for-cpp 
C++: Remove uses of implicit `this`
 2021-10-18 13:41:30 +02:00
Mathias Vorreiter Pedersen
ea67ca22a9 C++: Undo changes to shared dataflow files. 2021-10-18 09:00:00 +01:00
Geoffrey White
f38dade578 C++: Disable the two null termination queries enabled by 6794. 2021-10-15 17:39:12 +01:00
Erik Krogh Kristensen
fe891746bf C++: fix implicit this 2021-10-15 14:59:48 +01:00
Geoffrey White
8f30b8b586 Autoformat. 2021-10-14 16:00:23 +01:00
Anders Schack-Mulligen
f6a517c998 Merge pull request #6882 from MathiasVP/fix-unnecessary-exists 
C++/Python: Remove unnecessary `exists`
 2021-10-14 16:44:05 +02:00
Geoffrey White
f08d2ee759 Merge branch 'main' into setliterals 2021-10-14 14:39:39 +01:00
Anders Schack-Mulligen
8b6baa250c Merge pull request #6878 from aschackmull/remove-singleton-setliteral 
C++/C#/Java/JavaScript/Python: Remove singleton set literals.
 2021-10-14 14:53:05 +02:00