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1448 Commits

Author SHA1 Message Date
Jeroen Ketema
9396f0ee55 C++: Set defaultFieldFlowBranchLimit to 3 2025-04-25 13:10:42 +02:00
Jeroen Ketema
ac3c3ae13a C++: Do not limit second level scopes to the top-level 2025-04-25 13:10:40 +02:00
Jeroen Ketema
df3282c204 C++: Support C23 typeof and typeof_unqual 2025-04-23 16:56:47 +02:00
Mathias Vorreiter Pedersen
deef95d384 Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowPrivate.qll 
Co-authored-by: Taus <tausbn@github.com>
 2025-04-11 12:43:59 +01:00
Mathias Vorreiter Pedersen
bfc494c0e1 Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowPrivate.qll 
Co-authored-by: Taus <tausbn@github.com>
 2025-04-11 12:43:51 +01:00
Mathias Vorreiter Pedersen
3bb249f580 C++: Ensure we always have 'Position's even if there are no calls in the DB. 2025-04-10 14:28:40 +01:00
Mathias Vorreiter Pedersen
b678112f4d C++: Add a few predicates to 'ReturnKind'. 2025-04-10 14:28:38 +01:00
Mathias Vorreiter Pedersen
960e9900af C++: Move the 'getArgumentIndex' into the abstract 'Position' class. It is implemented in all subclasses anyway. 2025-04-10 14:28:36 +01:00
Anders Schack-Mulligen
a6a694dec6 C++: Use DataFlowIntegration in IteratorFlow. 2025-03-31 10:49:43 +02:00
Anders Schack-Mulligen
aaa7e4cf95 C++: Def is only used in defToNode, which doesn't include phi reads nodes. 2025-03-31 10:49:43 +02:00
Anders Schack-Mulligen
133f08784f C++: Eliminate dead code, uncertain is always false. 2025-03-31 10:49:42 +02:00
Anders Schack-Mulligen
5a986f5327 SSA: Remove empty predicates and dead code. 2025-03-28 12:00:38 +01:00
Anders Schack-Mulligen
308d15401f C++: Add ssaDefHasSource. 2025-03-28 11:57:30 +01:00
Anders Schack-Mulligen
d5d0274ce7 Java/SSA: Keep proper distinction between cached stages. 2025-03-25 13:43:55 +01:00
Anders Schack-Mulligen
4d04391b70 C++: Keep all phi input back edges. 2025-03-25 13:21:13 +01:00
Mathias Vorreiter Pedersen
90774c03be C++: Remove yet another DefinitionExt reference. 2025-03-14 10:51:27 +01:00
Anders Schack-Mulligen
35687ea698 C++: Merge two cached stages. 2025-03-14 10:51:27 +01:00
Anders Schack-Mulligen
7bfd47a924 C++: Fix bad join order. 
Before:

[2025-03-12 10:27:53] Evaluated non-recursive predicate SsaInternals::UseImpl.hasIndexInBlock/2#dispred#1e34a5af@e87543ui in 935ms (size: 8905695).
Evaluated relational algebra for predicate SsaInternals::UseImpl.hasIndexInBlock/2#dispred#1e34a5af@e87543ui with tuple counts:
                          {3} r1 = SsaInternals::DirectUseImpl#a58aae88 AND NOT `_ArithmeticOperation::PostfixCrementOperation#17623ada_Expr::UnaryOperation.getOperand/0#dispred#990__#antijoin_rhs`(FIRST 3)
         8579337   ~4%    {2}    | SCAN OUTPUT In.1, In.0
         8579337   ~0%    {2}    | JOIN WITH `Operand::Operand.getUse/0#dispred#427b49d0` ON FIRST 1 OUTPUT Rhs.1, Lhs.1
         8579337   ~0%    {3}    | JOIN WITH `IRBlock::Cached::getInstruction/2#627f9c61_201#join_rhs` ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2

           48215   ~2%    {2} r2 = SCAN SsaInternals::GlobalUse#9cd323b4 OUTPUT In.2, In.0
        35467318   ~3%    {2}    | JOIN WITH `SSAConstruction::getInstructionEnclosingIRFunction/1#5443f355_10#join_rhs` ON FIRST 1 OUTPUT Rhs.1, Lhs.1

           48189   ~0%    {2} r3 = JOIN r2 WITH Instruction::ReturnInstruction#28bfb7eb ON FIRST 1 OUTPUT Lhs.0, Lhs.1

           12332   ~0%    {2} r4 = JOIN r2 WITH Instruction::UnreachedInstruction#774c7a34 ON FIRST 1 OUTPUT Lhs.0, Lhs.1

           60521   ~0%    {2} r5 = r3 UNION r4
           60521   ~2%    {3}    | JOIN WITH `IRBlock::Cached::getInstruction/2#627f9c61_201#join_rhs` ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2

           39316   ~0%    {2} r6 = JOIN SsaInternals::FinalParameterUse#c1f84700_10#join_rhs WITH `Parameter::Parameter.getFunction/0#dispred#803faca2` ON FIRST 1 OUTPUT Rhs.1, Lhs.1
        43821265   ~0%    {2}    | JOIN WITH `Instruction::Instruction.getEnclosingFunction/0#dispred#cb8ccc56_10#join_rhs` ON FIRST 1 OUTPUT Rhs.1, Lhs.1

           39194   ~0%    {2} r7 = JOIN r6 WITH Instruction::ReturnInstruction#28bfb7eb ON FIRST 1 OUTPUT Lhs.0, Lhs.1

           21255   ~2%    {2} r8 = JOIN r6 WITH Instruction::UnreachedInstruction#774c7a34 ON FIRST 1 OUTPUT Lhs.0, Lhs.1

           60449   ~0%    {2} r9 = r7 UNION r8
           60449   ~3%    {3}    | JOIN WITH `IRBlock::Cached::getInstruction/2#627f9c61_201#join_rhs` ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2

         8784725   ~1%    {5} r10 = JOIN `_SsaInternals::DirectUseImpl#a58aae88_SsaInternals::DirectUseImpl.getBase/0#dispred#4b8c43d0_SsaInte__#shared` WITH `SsaInternals::DirectUseImpl.getBase/0#dispred#4b8c43d0` ON FIRST 1 OUTPUT Rhs.1, Lhs.0, Lhs.1, Lhs.2, Lhs.3
         8784725   ~0%    {5}    | JOIN WITH `cached_SSAConstruction::getInstructionAst/1#d0d95b50` ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3, Lhs.4
          210435   ~4%    {5}    | JOIN WITH `Expr::UnaryOperation.getOperand/0#dispred#990de484#bf_10#join_rhs` ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3, Lhs.4
          205388   ~0%    {4}    | JOIN WITH ArithmeticOperation::PostfixCrementOperation#17623ada ON FIRST 1 OUTPUT Lhs.4, Lhs.3, Lhs.2, Lhs.1
          205388   ~4%    {3}    | JOIN WITH `__IRBlock::Cached::getInstruction/2#627f9c61_201#join_rhs__ArithmeticOperation::PostfixCrementOperat__#join_rhs` ON FIRST 3 OUTPUT Rhs.4, Lhs.3, Rhs.3
          205388   ~0%    {3}    | JOIN WITH `Operand::Operand.getUse/0#dispred#427b49d0` ON FIRST 1 OUTPUT Lhs.2, Rhs.1, Lhs.1
          205388   ~1%    {3}    | JOIN WITH `IRBlock::Cached::getInstruction/2#627f9c61_021#join_rhs` ON FIRST 2 OUTPUT Lhs.2, Lhs.0, Rhs.2

         8905695   ~0%    {3} r11 = r1 UNION r5 UNION r9 UNION r10
                          return r11

After:

[2025-03-12 11:12:48] Evaluated non-recursive predicate SsaInternals::hasReturnPosition/3#02f7eab8@bc405c4l in 3ms (size: 49368).
Evaluated relational algebra for predicate SsaInternals::hasReturnPosition/3#02f7eab8@bc405c4l with tuple counts:
        49368  ~3%    {1} r1 = Instruction::ReturnInstruction#28bfb7eb UNION Instruction::UnreachedInstruction#774c7a34
        49368  ~0%    {2}    | JOIN WITH `cached_SSAConstruction::getInstructionEnclosingIRFunction/1#5443f355` ON FIRST 1 OUTPUT Lhs.0, Rhs.1
        49368  ~2%    {3}    | JOIN WITH `IRBlock::Cached::getInstruction/2#627f9c61_201#join_rhs` ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2
                      return r1

[2025-03-12 11:12:54] Evaluated non-recursive predicate SsaInternals::UseImpl.hasIndexInBlock/2#dispred#1e34a5af@6e30cduo in 549ms (size: 8905695).
Evaluated relational algebra for predicate SsaInternals::UseImpl.hasIndexInBlock/2#dispred#1e34a5af@6e30cduo with tuple counts:
          48215   ~2%    {2} r1 = SCAN SsaInternals::GlobalUse#9cd323b4 OUTPUT In.2, In.0
          60521   ~2%    {3}    | JOIN WITH `SsaInternals::hasReturnPosition/3#02f7eab8` ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2

          50725   ~0%    {2} r2 = JOIN `IRFunctionBase::IRFunctionBase.getFunction/0#dispred#b024672e_10#join_rhs` WITH `Parameter::Parameter.getFunction/0#dispred#803faca2_10#join_rhs` ON FIRST 1 OUTPUT Rhs.1, Lhs.1
          39231   ~2%    {2}    | JOIN WITH SsaInternals::FinalParameterUse#c1f84700_10#join_rhs ON FIRST 1 OUTPUT Lhs.1, Rhs.1
          60449   ~3%    {3}    | JOIN WITH `SsaInternals::hasReturnPosition/3#02f7eab8` ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2

                         {3} r3 = SsaInternals::DirectUseImpl#a58aae88 AND NOT `_ArithmeticOperation::PostfixCrementOperation#17623ada_Expr::UnaryOperation.getOperand/0#dispred#990__#antijoin_rhs`(FIRST 3)
        8579337   ~1%    {2}    | SCAN OUTPUT In.1, In.0
        8579337   ~0%    {2}    | JOIN WITH `Operand::Operand.getUse/0#dispred#427b49d0` ON FIRST 1 OUTPUT Rhs.1, Lhs.1
        8579337   ~1%    {3}    | JOIN WITH `IRBlock::Cached::getInstruction/2#627f9c61_201#join_rhs` ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2

        8784725   ~0%    {5} r4 = JOIN `_SsaInternals::DirectUseImpl#a58aae88_SsaInternals::DirectUseImpl.getBase/0#dispred#4b8c43d0_SsaInte__#shared` WITH `SsaInternals::DirectUseImpl.getBase/0#dispred#4b8c43d0` ON FIRST 1 OUTPUT Rhs.1, Lhs.0, Lhs.1, Lhs.2, Lhs.3
        8784725   ~0%    {5}    | JOIN WITH `cached_SSAConstruction::getInstructionAst/1#d0d95b50` ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3, Lhs.4
         210435   ~0%    {5}    | JOIN WITH `Expr::UnaryOperation.getOperand/0#dispred#990de484#bf_10#join_rhs` ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3, Lhs.4
         205388   ~2%    {4}    | JOIN WITH ArithmeticOperation::PostfixCrementOperation#17623ada ON FIRST 1 OUTPUT Lhs.4, Lhs.3, Lhs.2, Lhs.1
         205388   ~0%    {3}    | JOIN WITH `__IRBlock::Cached::getInstruction/2#627f9c61_201#join_rhs__ArithmeticOperation::PostfixCrementOperat__#join_rhs` ON FIRST 3 OUTPUT Rhs.4, Lhs.3, Rhs.3
         205388   ~0%    {3}    | JOIN WITH `Operand::Operand.getUse/0#dispred#427b49d0` ON FIRST 1 OUTPUT Lhs.2, Rhs.1, Lhs.1
         205388   ~0%    {3}    | JOIN WITH `IRBlock::Cached::getInstruction/2#627f9c61_021#join_rhs` ON FIRST 2 OUTPUT Lhs.2, Lhs.0, Rhs.2

        8905695   ~0%    {3} r5 = r1 UNION r2 UNION r3 UNION r4
                         return r5
 2025-03-14 10:51:27 +01:00
Anders Schack-Mulligen
ba13d7fffe C++: Remove superfluous disjunct. 2025-03-14 10:51:26 +01:00
Anders Schack-Mulligen
ecb5e7ad07 C++: Fix spurious ExprNode fanout in DataFlowIntegration. 2025-03-14 10:51:26 +01:00
Anders Schack-Mulligen
b5a2f5d3ff C++: Remove useless ipa wrapper. 2025-03-14 10:51:25 +01:00
Anders Schack-Mulligen
4bd35b10fc C++: Delete dead code. 2025-03-14 10:51:25 +01:00
Anders Schack-Mulligen
6ba1d2ef14 C++: Replace DefinitionExt usage with Definition. 2025-03-14 10:51:24 +01:00
Anders Schack-Mulligen
9375e571b1 C++: Use SSA data flow integration module. 2025-03-14 10:51:24 +01:00
Anders Schack-Mulligen
c7ff2f55b5 C++: Remove yet another DefinitionExt reference. 2025-03-14 10:51:23 +01:00
Anders Schack-Mulligen
e01552c3f0 C++: Remove another DefinitionExt reference. 2025-03-14 10:51:23 +01:00
Anders Schack-Mulligen
c5755ba8d4 C++: Remove a DefinitionExt reference. 2025-03-14 10:51:23 +01:00
Anders Schack-Mulligen
0c17786ed0 C++: Delete unused predicate 2025-03-14 10:51:22 +01:00
Mathias Vorreiter Pedersen
6f4e9ed136 Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll 
Co-authored-by: Jeroen Ketema <93738568+jketema@users.noreply.github.com>
 2025-03-13 16:00:36 +00:00
Mathias Vorreiter Pedersen
0e5fa1b5eb Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll 
Co-authored-by: Jeroen Ketema <93738568+jketema@users.noreply.github.com>
 2025-03-13 16:00:23 +00:00
Mathias Vorreiter Pedersen
470321e8b6 Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll 
Co-authored-by: Jeroen Ketema <93738568+jketema@users.noreply.github.com>
 2025-03-13 16:00:15 +00:00
Mathias Vorreiter Pedersen
9cde2bb94d Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll 
Co-authored-by: Jeroen Ketema <93738568+jketema@users.noreply.github.com>
 2025-03-13 15:59:57 +00:00
Mathias Vorreiter Pedersen
68b414d169 Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll 
Co-authored-by: Jeroen Ketema <93738568+jketema@users.noreply.github.com>
 2025-03-13 15:59:48 +00:00
Mathias Vorreiter Pedersen
66e8b2d7e5 C++: Add an 'asDefinition' overload to check if a definition is certain or not. 2025-03-12 17:07:07 +00:00
Mathias Vorreiter Pedersen
b06902a3b1 C++: Share more indirect operands and instructions. 2025-03-07 19:59:05 +00:00
Anders Schack-Mulligen
5d91f2e119 C++: Change countNumberOfBranchesUsingParameter to match qldoc closer. 2025-03-03 15:14:28 +01:00
Mathias Vorreiter Pedersen
9cfd3391d2 C++: Move 'getImpl' to a private non-member predicate. 2025-02-14 13:01:28 +00:00
Mathias Vorreiter Pedersen
be1af88d23 C++: Add more QLDoc. 2025-02-13 14:28:36 +00:00
Mathias Vorreiter Pedersen
aff03bd721 C++: Delete confusing class synonym. 2025-02-13 14:28:14 +00:00
Mathias Vorreiter Pedersen
f9732c746b C++: Patch up various places that depended on the old IPA type. 2025-02-13 14:28:12 +00:00
Mathias Vorreiter Pedersen
75b6855769 C++: Move useful predicates from the old IPA type for the 'DefinitionExt' type. 2025-02-13 14:28:10 +00:00
Mathias Vorreiter Pedersen
f597ea99e1 C++: Delete the unnecessary IPA type of definitions. 2025-02-13 14:01:32 +00:00
Anders Schack-Mulligen
0b5270979d SSA: Remove the need for ExitBasicBlock in SSA. 2025-02-10 14:36:18 +01:00
Mathias Vorreiter Pedersen
be2777bc31 C++: Don't infer lambda calls when there is a static dispatch to a source or summary callable. 2025-01-28 18:51:31 +00:00
Mathias Vorreiter Pedersen
a35ed57848 Revert "C++: Don't generate parameter nodes for bodyless parameters when there is a summary of the enclosing function." 
This reverts commit ad80b36074.
 2025-01-28 17:09:45 +00:00
Mathias Vorreiter Pedersen
38b66e5a8e C++: Fix a few type errors. 2025-01-28 14:08:12 +00:00
Mathias Vorreiter Pedersen
d40322f9eb C++: (Bugfix 3) Don't conflate summarized callables and source callables in 'nodeGetEnclosingCallable'. 2025-01-28 13:59:19 +00:00
Mathias Vorreiter Pedersen
06bc8add9d C++: (Bugfix 2) Don't remap isParameterOf. 2025-01-28 13:59:17 +00:00
Mathias Vorreiter Pedersen
662e74924b C++: (Bugfix 1) There should be a callable representing the source code even if there is a summarized version. 2025-01-28 13:59:16 +00:00
Mathias Vorreiter Pedersen
4e44201ba8 C++: Remap calls to source functions to the summarized function. 2025-01-27 16:58:53 +00:00