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C++: Keep old instruction -> instruction flow in simpleInstructionLocalFlowStep. This means we don't have to add general operand -> instruction to the simpleLocalFlowStep relation, which seems to add a 10% performance regression.

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This commit is contained in:
Mathias Vorreiter Pedersen
2020-06-28 11:28:43 +02:00
parent a0bfbda51c
commit 9c0f877172
3 changed files with 117 additions and 58 deletions
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96
cpp/ql/test/library-tests/dataflow/fields/ir-path-flow.expected
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@@ -6,43 +6,57 @@ edges
| A.cpp:57:10:57:25 | Argument -1 indirection [c] | A.cpp:57:28:57:30 | call to get |
| A.cpp:57:11:57:24 | B output argument [c] | A.cpp:57:10:57:25 | Argument -1 indirection [c] |
| A.cpp:57:17:57:23 | new | A.cpp:57:11:57:24 | B output argument [c] |
| A.cpp:98:12:98:18 | new | A.cpp:100:5:100:13 | Chi [a] |
| A.cpp:98:12:98:18 | new | A.cpp:100:5:100:13 | Store |
| A.cpp:100:5:100:13 | Chi [a] | A.cpp:101:8:101:9 | Argument 0 indirection [a] |
| A.cpp:100:5:100:13 | Store | A.cpp:100:5:100:13 | Chi [a] |
| A.cpp:101:8:101:9 | Argument 0 indirection [a] | A.cpp:103:14:103:14 | *c [a] |
| A.cpp:103:14:103:14 | *c [a] | A.cpp:107:16:107:16 | a |
| A.cpp:126:5:126:5 | Chi [c] | A.cpp:131:8:131:8 | f7 output argument [c] |
| A.cpp:126:5:126:5 | set output argument [c] | A.cpp:126:5:126:5 | Chi [c] |
| A.cpp:126:12:126:18 | new | A.cpp:126:5:126:5 | set output argument [c] |
| A.cpp:131:8:131:8 | f7 output argument [c] | A.cpp:132:13:132:13 | c |
| A.cpp:131:8:131:8 | Chi [c] | A.cpp:132:13:132:13 | c |
| A.cpp:131:8:131:8 | f7 output argument [c] | A.cpp:131:8:131:8 | Chi [c] |
| A.cpp:142:7:142:20 | Chi [c] | A.cpp:151:18:151:18 | D output argument [c] |
| A.cpp:142:14:142:20 | new | A.cpp:142:7:142:20 | Chi [c] |
| A.cpp:142:7:142:20 | Store | A.cpp:142:7:142:20 | Chi [c] |
| A.cpp:142:14:142:20 | new | A.cpp:142:7:142:20 | Store |
| A.cpp:143:7:143:31 | Chi [b] | A.cpp:151:12:151:24 | D output argument [b] |
| A.cpp:143:25:143:31 | new | A.cpp:143:7:143:31 | Chi [b] |
| A.cpp:143:7:143:31 | Store | A.cpp:143:7:143:31 | Chi [b] |
| A.cpp:143:25:143:31 | new | A.cpp:143:7:143:31 | Store |
| A.cpp:150:12:150:18 | new | A.cpp:151:18:151:18 | b |
| A.cpp:151:12:151:24 | D output argument [b] | A.cpp:152:13:152:13 | b |
| A.cpp:151:18:151:18 | D output argument [c] | A.cpp:154:13:154:13 | c |
| A.cpp:151:12:151:24 | Chi [b] | A.cpp:152:13:152:13 | b |
| A.cpp:151:12:151:24 | D output argument [b] | A.cpp:151:12:151:24 | Chi [b] |
| A.cpp:151:18:151:18 | Chi [c] | A.cpp:154:13:154:13 | c |
| A.cpp:151:18:151:18 | D output argument [c] | A.cpp:151:18:151:18 | Chi [c] |
| A.cpp:151:18:151:18 | b | A.cpp:151:12:151:24 | D output argument [b] |
| C.cpp:18:12:18:18 | C output argument [s1] | C.cpp:19:5:19:5 | Argument -1 indirection [s1] |
| C.cpp:18:12:18:18 | C output argument [s3] | C.cpp:19:5:19:5 | Argument -1 indirection [s3] |
| C.cpp:19:5:19:5 | Argument -1 indirection [s1] | C.cpp:27:8:27:11 | *#this [s1] |
| C.cpp:19:5:19:5 | Argument -1 indirection [s3] | C.cpp:27:8:27:11 | *#this [s3] |
| C.cpp:22:12:22:21 | Chi [s1] | C.cpp:24:5:24:25 | Chi [s1] |
| C.cpp:22:12:22:21 | new | C.cpp:22:12:22:21 | Chi [s1] |
| C.cpp:22:12:22:21 | Store | C.cpp:22:12:22:21 | Chi [s1] |
| C.cpp:22:12:22:21 | new | C.cpp:22:12:22:21 | Store |
| C.cpp:24:5:24:25 | Chi [s1] | C.cpp:18:12:18:18 | C output argument [s1] |
| C.cpp:24:5:24:25 | Chi [s3] | C.cpp:18:12:18:18 | C output argument [s3] |
| C.cpp:24:16:24:25 | new | C.cpp:24:5:24:25 | Chi [s3] |
| C.cpp:24:5:24:25 | Store | C.cpp:24:5:24:25 | Chi [s3] |
| C.cpp:24:16:24:25 | new | C.cpp:24:5:24:25 | Store |
| C.cpp:27:8:27:11 | *#this [s1] | C.cpp:29:10:29:11 | s1 |
| C.cpp:27:8:27:11 | *#this [s3] | C.cpp:31:10:31:11 | s3 |
| aliasing.cpp:9:3:9:22 | Chi [m1] | aliasing.cpp:25:17:25:19 | pointerSetter output argument [m1] |
| aliasing.cpp:9:11:9:20 | call to user_input | aliasing.cpp:9:3:9:22 | Chi [m1] |
| aliasing.cpp:9:3:9:22 | Store | aliasing.cpp:9:3:9:22 | Chi [m1] |
| aliasing.cpp:9:11:9:20 | call to user_input | aliasing.cpp:9:3:9:22 | Store |
| aliasing.cpp:13:3:13:21 | Chi [m1] | aliasing.cpp:26:19:26:20 | referenceSetter output argument [m1] |
| aliasing.cpp:13:10:13:19 | call to user_input | aliasing.cpp:13:3:13:21 | Chi [m1] |
| aliasing.cpp:25:17:25:19 | pointerSetter output argument [m1] | aliasing.cpp:29:11:29:12 | m1 |
| aliasing.cpp:26:19:26:20 | referenceSetter output argument [m1] | aliasing.cpp:30:11:30:12 | m1 |
| aliasing.cpp:13:3:13:21 | Store | aliasing.cpp:13:3:13:21 | Chi [m1] |
| aliasing.cpp:13:10:13:19 | call to user_input | aliasing.cpp:13:3:13:21 | Store |
| aliasing.cpp:25:17:25:19 | Chi [m1] | aliasing.cpp:29:11:29:12 | m1 |
| aliasing.cpp:25:17:25:19 | pointerSetter output argument [m1] | aliasing.cpp:25:17:25:19 | Chi [m1] |
| aliasing.cpp:26:19:26:20 | Chi [m1] | aliasing.cpp:30:11:30:12 | m1 |
| aliasing.cpp:26:19:26:20 | referenceSetter output argument [m1] | aliasing.cpp:26:19:26:20 | Chi [m1] |
| aliasing.cpp:37:13:37:22 | call to user_input | aliasing.cpp:38:11:38:12 | m1 |
| aliasing.cpp:42:11:42:20 | call to user_input | aliasing.cpp:43:13:43:14 | m1 |
| aliasing.cpp:60:3:60:22 | Chi [m1] | aliasing.cpp:62:14:62:15 | m1 |
| aliasing.cpp:60:11:60:20 | call to user_input | aliasing.cpp:60:3:60:22 | Chi [m1] |
| aliasing.cpp:60:3:60:22 | Chi [m1] | aliasing.cpp:61:13:61:14 | Store [m1] |
| aliasing.cpp:60:3:60:22 | Store | aliasing.cpp:60:3:60:22 | Chi [m1] |
| aliasing.cpp:60:11:60:20 | call to user_input | aliasing.cpp:60:3:60:22 | Store |
| aliasing.cpp:61:13:61:14 | Store [m1] | aliasing.cpp:62:14:62:15 | m1 |
| aliasing.cpp:79:11:79:20 | call to user_input | aliasing.cpp:80:12:80:13 | m1 |
| aliasing.cpp:86:10:86:19 | call to user_input | aliasing.cpp:87:12:87:13 | m1 |
| aliasing.cpp:92:12:92:21 | call to user_input | aliasing.cpp:93:12:93:13 | m1 |
@@ -60,14 +74,20 @@ edges
| by_reference.cpp:69:22:69:23 | Argument 0 indirection [a] | by_reference.cpp:69:8:69:20 | call to nonMemberGetA |
| by_reference.cpp:84:3:84:25 | Chi [a] | by_reference.cpp:102:21:102:39 | taint_inner_a_ptr output argument [a] |
| by_reference.cpp:84:3:84:25 | Chi [a] | by_reference.cpp:106:21:106:41 | taint_inner_a_ptr output argument [a] |
| by_reference.cpp:84:14:84:23 | call to user_input | by_reference.cpp:84:3:84:25 | Chi [a] |
| by_reference.cpp:84:3:84:25 | Store | by_reference.cpp:84:3:84:25 | Chi [a] |
| by_reference.cpp:84:14:84:23 | call to user_input | by_reference.cpp:84:3:84:25 | Store |
| by_reference.cpp:88:3:88:24 | Chi [a] | by_reference.cpp:122:21:122:38 | taint_inner_a_ref output argument [a] |
| by_reference.cpp:88:3:88:24 | Chi [a] | by_reference.cpp:126:21:126:40 | taint_inner_a_ref output argument [a] |
| by_reference.cpp:88:13:88:22 | call to user_input | by_reference.cpp:88:3:88:24 | Chi [a] |
| by_reference.cpp:102:21:102:39 | taint_inner_a_ptr output argument [a] | by_reference.cpp:110:27:110:27 | a |
| by_reference.cpp:106:21:106:41 | taint_inner_a_ptr output argument [a] | by_reference.cpp:114:29:114:29 | a |
| by_reference.cpp:122:21:122:38 | taint_inner_a_ref output argument [a] | by_reference.cpp:130:27:130:27 | a |
| by_reference.cpp:126:21:126:40 | taint_inner_a_ref output argument [a] | by_reference.cpp:134:29:134:29 | a |
| by_reference.cpp:88:3:88:24 | Store | by_reference.cpp:88:3:88:24 | Chi [a] |
| by_reference.cpp:88:13:88:22 | call to user_input | by_reference.cpp:88:3:88:24 | Store |
| by_reference.cpp:102:21:102:39 | Chi [a] | by_reference.cpp:110:27:110:27 | a |
| by_reference.cpp:102:21:102:39 | taint_inner_a_ptr output argument [a] | by_reference.cpp:102:21:102:39 | Chi [a] |
| by_reference.cpp:106:21:106:41 | Chi [a] | by_reference.cpp:114:29:114:29 | a |
| by_reference.cpp:106:21:106:41 | taint_inner_a_ptr output argument [a] | by_reference.cpp:106:21:106:41 | Chi [a] |
| by_reference.cpp:122:21:122:38 | Chi [a] | by_reference.cpp:130:27:130:27 | a |
| by_reference.cpp:122:21:122:38 | taint_inner_a_ref output argument [a] | by_reference.cpp:122:21:122:38 | Chi [a] |
| by_reference.cpp:126:21:126:40 | Chi [a] | by_reference.cpp:134:29:134:29 | a |
| by_reference.cpp:126:21:126:40 | taint_inner_a_ref output argument [a] | by_reference.cpp:126:21:126:40 | Chi [a] |
| complex.cpp:40:17:40:17 | *b [a_] | complex.cpp:51:16:51:16 | Argument -1 indirection [a_] |
| complex.cpp:40:17:40:17 | *b [b_] | complex.cpp:51:16:51:16 | Argument -1 indirection [b_] |
| complex.cpp:40:17:40:17 | *b [b_] | complex.cpp:52:16:52:16 | Argument -1 indirection [b_] |
@@ -131,18 +151,22 @@ edges
| simple.cpp:48:9:48:9 | Argument 0 indirection [b_] | simple.cpp:26:15:26:15 | *f [b_] |
| simple.cpp:51:9:51:9 | Argument 0 indirection [a_] | simple.cpp:26:15:26:15 | *f [a_] |
| simple.cpp:51:9:51:9 | Argument 0 indirection [b_] | simple.cpp:26:15:26:15 | *f [b_] |
| simple.cpp:65:5:65:22 | Store [i] | simple.cpp:67:13:67:13 | i |
| simple.cpp:65:5:65:22 | Store [i] | simple.cpp:66:12:66:12 | Store [i] |
| simple.cpp:65:11:65:20 | call to user_input | simple.cpp:65:5:65:22 | Store [i] |
| simple.cpp:66:12:66:12 | Store [i] | simple.cpp:67:13:67:13 | i |
| simple.cpp:83:9:83:28 | Chi [f1] | simple.cpp:84:14:84:20 | Argument -1 indirection [f1] |
| simple.cpp:83:17:83:26 | call to user_input | simple.cpp:83:9:83:28 | Chi [f1] |
| simple.cpp:83:9:83:28 | Store | simple.cpp:83:9:83:28 | Chi [f1] |
| simple.cpp:83:17:83:26 | call to user_input | simple.cpp:83:9:83:28 | Store |
| simple.cpp:84:14:84:20 | Argument -1 indirection [f1] | simple.cpp:84:14:84:20 | call to getf2f1 |
| struct_init.c:14:24:14:25 | *ab [a] | struct_init.c:15:12:15:12 | a |
| struct_init.c:20:20:20:29 | Chi [a] | struct_init.c:24:10:24:12 | Argument 0 indirection [a] |
| struct_init.c:20:20:20:29 | call to user_input | struct_init.c:20:20:20:29 | Chi [a] |
| struct_init.c:20:20:20:29 | Store | struct_init.c:20:20:20:29 | Chi [a] |
| struct_init.c:20:20:20:29 | call to user_input | struct_init.c:20:20:20:29 | Store |
| struct_init.c:20:20:20:29 | call to user_input | struct_init.c:22:11:22:11 | a |
| struct_init.c:24:10:24:12 | Argument 0 indirection [a] | struct_init.c:14:24:14:25 | *ab [a] |
| struct_init.c:27:7:27:16 | Chi [a] | struct_init.c:36:10:36:24 | Argument 0 indirection [a] |
| struct_init.c:27:7:27:16 | call to user_input | struct_init.c:27:7:27:16 | Chi [a] |
| struct_init.c:27:7:27:16 | Store | struct_init.c:27:7:27:16 | Chi [a] |
| struct_init.c:27:7:27:16 | call to user_input | struct_init.c:27:7:27:16 | Store |
| struct_init.c:27:7:27:16 | call to user_input | struct_init.c:31:23:31:23 | a |
| struct_init.c:36:10:36:24 | Argument 0 indirection [a] | struct_init.c:14:24:14:25 | *ab [a] |
nodes
@@ -157,20 +181,26 @@ nodes
| A.cpp:57:28:57:30 | call to get | semmle.label | call to get |
| A.cpp:98:12:98:18 | new | semmle.label | new |
| A.cpp:100:5:100:13 | Chi [a] | semmle.label | Chi [a] |
| A.cpp:100:5:100:13 | Store | semmle.label | Store |
| A.cpp:101:8:101:9 | Argument 0 indirection [a] | semmle.label | Argument 0 indirection [a] |
| A.cpp:103:14:103:14 | *c [a] | semmle.label | *c [a] |
| A.cpp:107:16:107:16 | a | semmle.label | a |
| A.cpp:126:5:126:5 | Chi [c] | semmle.label | Chi [c] |
| A.cpp:126:5:126:5 | set output argument [c] | semmle.label | set output argument [c] |
| A.cpp:126:12:126:18 | new | semmle.label | new |
| A.cpp:131:8:131:8 | Chi [c] | semmle.label | Chi [c] |
| A.cpp:131:8:131:8 | f7 output argument [c] | semmle.label | f7 output argument [c] |
| A.cpp:132:13:132:13 | c | semmle.label | c |
| A.cpp:142:7:142:20 | Chi [c] | semmle.label | Chi [c] |
| A.cpp:142:7:142:20 | Store | semmle.label | Store |
| A.cpp:142:14:142:20 | new | semmle.label | new |
| A.cpp:143:7:143:31 | Chi [b] | semmle.label | Chi [b] |
| A.cpp:143:7:143:31 | Store | semmle.label | Store |
| A.cpp:143:25:143:31 | new | semmle.label | new |
| A.cpp:150:12:150:18 | new | semmle.label | new |
| A.cpp:151:12:151:24 | Chi [b] | semmle.label | Chi [b] |
| A.cpp:151:12:151:24 | D output argument [b] | semmle.label | D output argument [b] |
| A.cpp:151:18:151:18 | Chi [c] | semmle.label | Chi [c] |
| A.cpp:151:18:151:18 | D output argument [c] | semmle.label | D output argument [c] |
| A.cpp:151:18:151:18 | b | semmle.label | b |
| A.cpp:152:13:152:13 | b | semmle.label | b |
@@ -180,19 +210,25 @@ nodes
| C.cpp:19:5:19:5 | Argument -1 indirection [s1] | semmle.label | Argument -1 indirection [s1] |
| C.cpp:19:5:19:5 | Argument -1 indirection [s3] | semmle.label | Argument -1 indirection [s3] |
| C.cpp:22:12:22:21 | Chi [s1] | semmle.label | Chi [s1] |
| C.cpp:22:12:22:21 | Store | semmle.label | Store |
| C.cpp:22:12:22:21 | new | semmle.label | new |
| C.cpp:24:5:24:25 | Chi [s1] | semmle.label | Chi [s1] |
| C.cpp:24:5:24:25 | Chi [s3] | semmle.label | Chi [s3] |
| C.cpp:24:5:24:25 | Store | semmle.label | Store |
| C.cpp:24:16:24:25 | new | semmle.label | new |
| C.cpp:27:8:27:11 | *#this [s1] | semmle.label | *#this [s1] |
| C.cpp:27:8:27:11 | *#this [s3] | semmle.label | *#this [s3] |
| C.cpp:29:10:29:11 | s1 | semmle.label | s1 |
| C.cpp:31:10:31:11 | s3 | semmle.label | s3 |
| aliasing.cpp:9:3:9:22 | Chi [m1] | semmle.label | Chi [m1] |
| aliasing.cpp:9:3:9:22 | Store | semmle.label | Store |
| aliasing.cpp:9:11:9:20 | call to user_input | semmle.label | call to user_input |
| aliasing.cpp:13:3:13:21 | Chi [m1] | semmle.label | Chi [m1] |
| aliasing.cpp:13:3:13:21 | Store | semmle.label | Store |
| aliasing.cpp:13:10:13:19 | call to user_input | semmle.label | call to user_input |
| aliasing.cpp:25:17:25:19 | Chi [m1] | semmle.label | Chi [m1] |
| aliasing.cpp:25:17:25:19 | pointerSetter output argument [m1] | semmle.label | pointerSetter output argument [m1] |
| aliasing.cpp:26:19:26:20 | Chi [m1] | semmle.label | Chi [m1] |
| aliasing.cpp:26:19:26:20 | referenceSetter output argument [m1] | semmle.label | referenceSetter output argument [m1] |
| aliasing.cpp:29:11:29:12 | m1 | semmle.label | m1 |
| aliasing.cpp:30:11:30:12 | m1 | semmle.label | m1 |
@@ -201,7 +237,9 @@ nodes
| aliasing.cpp:42:11:42:20 | call to user_input | semmle.label | call to user_input |
| aliasing.cpp:43:13:43:14 | m1 | semmle.label | m1 |
| aliasing.cpp:60:3:60:22 | Chi [m1] | semmle.label | Chi [m1] |
| aliasing.cpp:60:3:60:22 | Store | semmle.label | Store |
| aliasing.cpp:60:11:60:20 | call to user_input | semmle.label | call to user_input |
| aliasing.cpp:61:13:61:14 | Store [m1] | semmle.label | Store [m1] |
| aliasing.cpp:62:14:62:15 | m1 | semmle.label | m1 |
| aliasing.cpp:79:11:79:20 | call to user_input | semmle.label | call to user_input |
| aliasing.cpp:80:12:80:13 | m1 | semmle.label | m1 |
@@ -226,14 +264,20 @@ nodes
| by_reference.cpp:69:8:69:20 | call to nonMemberGetA | semmle.label | call to nonMemberGetA |
| by_reference.cpp:69:22:69:23 | Argument 0 indirection [a] | semmle.label | Argument 0 indirection [a] |
| by_reference.cpp:84:3:84:25 | Chi [a] | semmle.label | Chi [a] |
| by_reference.cpp:84:3:84:25 | Store | semmle.label | Store |
| by_reference.cpp:84:14:84:23 | call to user_input | semmle.label | call to user_input |
| by_reference.cpp:88:3:88:24 | Chi [a] | semmle.label | Chi [a] |
| by_reference.cpp:88:3:88:24 | Store | semmle.label | Store |
| by_reference.cpp:88:13:88:22 | call to user_input | semmle.label | call to user_input |
| by_reference.cpp:102:21:102:39 | Chi [a] | semmle.label | Chi [a] |
| by_reference.cpp:102:21:102:39 | taint_inner_a_ptr output argument [a] | semmle.label | taint_inner_a_ptr output argument [a] |
| by_reference.cpp:106:21:106:41 | Chi [a] | semmle.label | Chi [a] |
| by_reference.cpp:106:21:106:41 | taint_inner_a_ptr output argument [a] | semmle.label | taint_inner_a_ptr output argument [a] |
| by_reference.cpp:110:27:110:27 | a | semmle.label | a |
| by_reference.cpp:114:29:114:29 | a | semmle.label | a |
| by_reference.cpp:122:21:122:38 | Chi [a] | semmle.label | Chi [a] |
| by_reference.cpp:122:21:122:38 | taint_inner_a_ref output argument [a] | semmle.label | taint_inner_a_ref output argument [a] |
| by_reference.cpp:126:21:126:40 | Chi [a] | semmle.label | Chi [a] |
| by_reference.cpp:126:21:126:40 | taint_inner_a_ref output argument [a] | semmle.label | taint_inner_a_ref output argument [a] |
| by_reference.cpp:130:27:130:27 | a | semmle.label | a |
| by_reference.cpp:134:29:134:29 | a | semmle.label | a |
@@ -303,18 +347,22 @@ nodes
| simple.cpp:51:9:51:9 | Argument 0 indirection [b_] | semmle.label | Argument 0 indirection [b_] |
| simple.cpp:65:5:65:22 | Store [i] | semmle.label | Store [i] |
| simple.cpp:65:11:65:20 | call to user_input | semmle.label | call to user_input |
| simple.cpp:66:12:66:12 | Store [i] | semmle.label | Store [i] |
| simple.cpp:67:13:67:13 | i | semmle.label | i |
| simple.cpp:83:9:83:28 | Chi [f1] | semmle.label | Chi [f1] |
| simple.cpp:83:9:83:28 | Store | semmle.label | Store |
| simple.cpp:83:17:83:26 | call to user_input | semmle.label | call to user_input |
| simple.cpp:84:14:84:20 | Argument -1 indirection [f1] | semmle.label | Argument -1 indirection [f1] |
| simple.cpp:84:14:84:20 | call to getf2f1 | semmle.label | call to getf2f1 |
| struct_init.c:14:24:14:25 | *ab [a] | semmle.label | *ab [a] |
| struct_init.c:15:12:15:12 | a | semmle.label | a |
| struct_init.c:20:20:20:29 | Chi [a] | semmle.label | Chi [a] |
| struct_init.c:20:20:20:29 | Store | semmle.label | Store |
| struct_init.c:20:20:20:29 | call to user_input | semmle.label | call to user_input |
| struct_init.c:22:11:22:11 | a | semmle.label | a |
| struct_init.c:24:10:24:12 | Argument 0 indirection [a] | semmle.label | Argument 0 indirection [a] |
| struct_init.c:27:7:27:16 | Chi [a] | semmle.label | Chi [a] |
| struct_init.c:27:7:27:16 | Store | semmle.label | Store |
| struct_init.c:27:7:27:16 | call to user_input | semmle.label | call to user_input |
| struct_init.c:31:23:31:23 | a | semmle.label | a |
| struct_init.c:36:10:36:24 | Argument 0 indirection [a] | semmle.label | Argument 0 indirection [a] |