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infer_clone/infer/tests/codetoanalyze/c/frontend/comma/comma.c.dot

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Add @generated comment to icfg.dot files Reviewed By: jvillard Differential Revision: D3358243 fbshipit-source-id: a47cc01
9 years ago
/* @generated */
[cfg] rename iCFG to cfg in dotty files Summary: Not sure what an "iCFG" is but the dotty is only about CFGs anyway. Diff obtained by mass-`sed`. Reviewed By: sblackshear Differential Revision: D6324280 fbshipit-source-id: b7603bb
7 years ago
digraph cfg {
Get rid of Declare_locals Reviewed By: jeremydubreil Differential Revision: D9234331 fbshipit-source-id: 70443eabe
6 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_1" [label="1: Start comma_1\nFormals: \nLocals: d:int b:int a:int \n " color=yellow style=filled]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_1" -> "comma_1.bafaed8336991f5a2e612ee2580c1506_6" ;
"comma_1.bafaed8336991f5a2e612ee2580c1506_2" [label="2: Exit comma_1 \n " color=yellow style=filled]
initial synchronization
10 years ago
[preanalysis] do not delay killing variables taken by reference Summary: Before, the liveness pre-analysis would place extra instructions in the CFG for either: 1. marking an `Ident.t` as dead, or 2. marking a `Pvar.t` as `= 0` But we have no way of marking pvars dead without setting them to 0. This is bad because setting pvars to 0 is not possible everywhere they are dead. Indeed, we only do it when we haven't seen their address being taken anyway. This prevents the following situation, recorded in our tests: ``` int address_taken() { int** x; int* y; int i = 7; y = &i; x = &y; // if we don't reason about taken addresses while adding nullify instructions, // we'll add // `nullify(y)` here and report a false NPE on the next line return **x; } ``` So we want to mark pvars as dead without nullifying them. This diff extends the `Remove_temps` SIL instruction to accept pvars as well, and so renames it to `ExitScope`. Reviewed By: da319 Differential Revision: D13102953 fbshipit-source-id: aa7f03a52
6 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_3" [label="3: Return Stmt \n n$0=*&d:int [line 11, column 10]\n *&return:int=n$0 [line 11, column 3]\n NULLIFY(&d); [line 11, column 3]\n EXIT_SCOPE(n$0,d); [line 11, column 3]\n APPLY_ABSTRACTION; [line 11, column 3]\n " shape="box"]
initial synchronization
10 years ago
[debug][dotty] Fix issue in dotty output where overloaded functions were conflated Reviewed By: jvillard Differential Revision: D4117078 fbshipit-source-id: fdd8e93
8 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_3" -> "comma_1.bafaed8336991f5a2e612ee2580c1506_2" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_4" [label="4: DeclStmt \n n$5=_fun___variable_initialization(&d:int) assign_last [line 10, column 3]\n n$1=*&a:int [line 10, column 16]\n *&a:int=(n$1 * 2) [line 10, column 12]\n n$2=*&a:int [line 10, column 12]\n n$3=*&a:int [line 10, column 31]\n *&a:int=(n$3 + 1) [line 10, column 31]\n *&b:int=(7 * n$3) [line 10, column 23]\n n$4=*&b:int [line 10, column 23]\n *&d:int=n$4 [line 10, column 3]\n NULLIFY(&a); [line 10, column 3]\n NULLIFY(&b); [line 10, column 3]\n EXIT_SCOPE(n$1,n$2,n$3,n$4,n$5,a,b); [line 10, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_4" -> "comma_1.bafaed8336991f5a2e612ee2580c1506_3" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_5" [label="5: DeclStmt \n n$6=_fun___variable_initialization(&b:int) assign_last [line 9, column 3]\n *&b:int=7 [line 9, column 3]\n NULLIFY(&b); [line 9, column 3]\n EXIT_SCOPE(n$6,b); [line 9, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_5" -> "comma_1.bafaed8336991f5a2e612ee2580c1506_4" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_6" [label="6: DeclStmt \n n$7=_fun___variable_initialization(&a:int) assign_last [line 9, column 3]\n *&a:int=9 [line 9, column 3]\n EXIT_SCOPE(n$7); [line 9, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_1.bafaed8336991f5a2e612ee2580c1506_6" -> "comma_1.bafaed8336991f5a2e612ee2580c1506_5" ;
Get rid of Declare_locals Reviewed By: jeremydubreil Differential Revision: D9234331 fbshipit-source-id: 70443eabe
6 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_1" [label="1: Start comma_2\nFormals: \nLocals: d:int b:int a:int \n " color=yellow style=filled]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_1" -> "comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_6" ;
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_2" [label="2: Exit comma_2 \n " color=yellow style=filled]
initial synchronization
10 years ago
[preanalysis] do not delay killing variables taken by reference Summary: Before, the liveness pre-analysis would place extra instructions in the CFG for either: 1. marking an `Ident.t` as dead, or 2. marking a `Pvar.t` as `= 0` But we have no way of marking pvars dead without setting them to 0. This is bad because setting pvars to 0 is not possible everywhere they are dead. Indeed, we only do it when we haven't seen their address being taken anyway. This prevents the following situation, recorded in our tests: ``` int address_taken() { int** x; int* y; int i = 7; y = &i; x = &y; // if we don't reason about taken addresses while adding nullify instructions, // we'll add // `nullify(y)` here and report a false NPE on the next line return **x; } ``` So we want to mark pvars as dead without nullifying them. This diff extends the `Remove_temps` SIL instruction to accept pvars as well, and so renames it to `ExitScope`. Reviewed By: da319 Differential Revision: D13102953 fbshipit-source-id: aa7f03a52
6 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_3" [label="3: Return Stmt \n n$0=*&d:int [line 17, column 10]\n *&return:int=n$0 [line 17, column 3]\n NULLIFY(&d); [line 17, column 3]\n EXIT_SCOPE(n$0,d); [line 17, column 3]\n APPLY_ABSTRACTION; [line 17, column 3]\n " shape="box"]
initial synchronization
10 years ago
[debug][dotty] Fix issue in dotty output where overloaded functions were conflated Reviewed By: jvillard Differential Revision: D4117078 fbshipit-source-id: fdd8e93
8 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_3" -> "comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_2" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_4" [label="4: DeclStmt \n n$7=_fun___variable_initialization(&d:int) assign_last [line 16, column 3]\n n$1=*&a:int [line 16, column 16]\n *&a:int=(n$1 * 2) [line 16, column 12]\n n$2=*&a:int [line 16, column 12]\n n$3=*&a:int [line 16, column 31]\n *&a:int=(n$3 + 1) [line 16, column 31]\n *&b:int=(7 * n$3) [line 16, column 23]\n n$4=*&b:int [line 16, column 23]\n n$5=*&a:int [line 16, column 36]\n n$6=*&b:int [line 16, column 40]\n *&d:int=((n$5 + n$6) + 9) [line 16, column 3]\n NULLIFY(&b); [line 16, column 3]\n NULLIFY(&a); [line 16, column 3]\n EXIT_SCOPE(n$1,n$2,n$3,n$4,n$5,n$6,n$7,b,a); [line 16, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_4" -> "comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_3" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_5" [label="5: DeclStmt \n n$8=_fun___variable_initialization(&b:int) assign_last [line 15, column 3]\n *&b:int=7 [line 15, column 3]\n NULLIFY(&b); [line 15, column 3]\n EXIT_SCOPE(n$8,b); [line 15, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_5" -> "comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_4" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_6" [label="6: DeclStmt \n n$9=_fun___variable_initialization(&a:int) assign_last [line 15, column 3]\n *&a:int=9 [line 15, column 3]\n EXIT_SCOPE(n$9); [line 15, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_6" -> "comma_2.aa5fd44d8dfe78041d816bb9ce86a85f_5" ;
Get rid of Declare_locals Reviewed By: jeremydubreil Differential Revision: D9234331 fbshipit-source-id: 70443eabe
6 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_1" [label="1: Start comma_3\nFormals: \nLocals: d:int c:int b:int a:int \n " color=yellow style=filled]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_1" -> "comma_3.94b9d12e6a2f1dbb384d21928d4e092d_7" ;
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_2" [label="2: Exit comma_3 \n " color=yellow style=filled]
initial synchronization
10 years ago
[preanalysis] do not delay killing variables taken by reference Summary: Before, the liveness pre-analysis would place extra instructions in the CFG for either: 1. marking an `Ident.t` as dead, or 2. marking a `Pvar.t` as `= 0` But we have no way of marking pvars dead without setting them to 0. This is bad because setting pvars to 0 is not possible everywhere they are dead. Indeed, we only do it when we haven't seen their address being taken anyway. This prevents the following situation, recorded in our tests: ``` int address_taken() { int** x; int* y; int i = 7; y = &i; x = &y; // if we don't reason about taken addresses while adding nullify instructions, // we'll add // `nullify(y)` here and report a false NPE on the next line return **x; } ``` So we want to mark pvars as dead without nullifying them. This diff extends the `Remove_temps` SIL instruction to accept pvars as well, and so renames it to `ExitScope`. Reviewed By: da319 Differential Revision: D13102953 fbshipit-source-id: aa7f03a52
6 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_3" [label="3: Return Stmt \n n$0=*&d:int [line 23, column 10]\n *&return:int=n$0 [line 23, column 3]\n NULLIFY(&d); [line 23, column 3]\n EXIT_SCOPE(n$0,d); [line 23, column 3]\n APPLY_ABSTRACTION; [line 23, column 3]\n " shape="box"]
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_3" -> "comma_3.94b9d12e6a2f1dbb384d21928d4e092d_2" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_4" [label="4: DeclStmt \n n$9=_fun___variable_initialization(&d:int) assign_last [line 22, column 3]\n n$1=*&a:int [line 22, column 16]\n *&a:int=(n$1 * 2) [line 22, column 12]\n n$2=*&a:int [line 22, column 12]\n n$3=*&a:int [line 22, column 31]\n *&a:int=(n$3 + 1) [line 22, column 31]\n *&b:int=(7 * n$3) [line 22, column 23]\n n$4=*&b:int [line 22, column 23]\n n$5=*&a:int [line 22, column 40]\n n$6=*&b:int [line 22, column 44]\n *&c:int=((n$5 + n$6) + 9) [line 22, column 36]\n n$7=*&c:int [line 22, column 36]\n n$8=*&c:int [line 22, column 51]\n *&d:int=n$8 [line 22, column 3]\n NULLIFY(&c); [line 22, column 3]\n NULLIFY(&b); [line 22, column 3]\n NULLIFY(&a); [line 22, column 3]\n EXIT_SCOPE(n$1,n$2,n$3,n$4,n$5,n$6,n$7,n$8,n$9,c,b,a); [line 22, column 3]\n " shape="box"]
initial synchronization
10 years ago
[debug][dotty] Fix issue in dotty output where overloaded functions were conflated Reviewed By: jvillard Differential Revision: D4117078 fbshipit-source-id: fdd8e93
8 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_4" -> "comma_3.94b9d12e6a2f1dbb384d21928d4e092d_3" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_5" [label="5: DeclStmt \n n$10=_fun___variable_initialization(&c:int) assign_last [line 21, column 3]\n *&c:int=3 [line 21, column 3]\n NULLIFY(&c); [line 21, column 3]\n EXIT_SCOPE(n$10,c); [line 21, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_5" -> "comma_3.94b9d12e6a2f1dbb384d21928d4e092d_4" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_6" [label="6: DeclStmt \n n$11=_fun___variable_initialization(&b:int) assign_last [line 21, column 3]\n *&b:int=7 [line 21, column 3]\n NULLIFY(&b); [line 21, column 3]\n EXIT_SCOPE(n$11,b); [line 21, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_6" -> "comma_3.94b9d12e6a2f1dbb384d21928d4e092d_5" ;
[SIL][preanalysis] add call flag for functions treating first formal as return Summary: This helps some checkers and the liveness preanalysis. Reviewed By: da319 Differential Revision: D13102954 fbshipit-source-id: b8d3c5fe2
6 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_7" [label="7: DeclStmt \n n$12=_fun___variable_initialization(&a:int) assign_last [line 21, column 3]\n *&a:int=9 [line 21, column 3]\n EXIT_SCOPE(n$12); [line 21, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"comma_3.94b9d12e6a2f1dbb384d21928d4e092d_7" -> "comma_3.94b9d12e6a2f1dbb384d21928d4e092d_6" ;
initial synchronization
10 years ago
}