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infer_clone/infer/tests/codetoanalyze/c/frontend/nestedoperators/union.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
"main.fad58de7366495db4650cfefac2fcd61_1" [label="1: Start main\nFormals: \nLocals: l: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
"main.fad58de7366495db4650cfefac2fcd61_1" -> "main.fad58de7366495db4650cfefac2fcd61_7" ;
"main.fad58de7366495db4650cfefac2fcd61_2" [label="2: Exit main \n " color=yellow style=filled]
initial synchronization
10 years ago
[cfg] print dotty *after* pre-analysis Summary: Useful to understand the changes in the pre-analysis, or to inspect the CFG that checkers actually get. This means that the pre-analysis always runs when we output the dotty, but I don't really see a reason why not. In fact, we could probably *always* store the CFGs as pre-analysed. Reviewed By: mbouaziz Differential Revision: D13102952 fbshipit-source-id: 89f3102ec
6 years ago
"main.fad58de7366495db4650cfefac2fcd61_3" [label="3: Return Stmt \n *&return:int=0 [line 35, column 3]\n APPLY_ABSTRACTION; [line 35, 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
"main.fad58de7366495db4650cfefac2fcd61_3" -> "main.fad58de7366495db4650cfefac2fcd61_2" ;
[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
"main.fad58de7366495db4650cfefac2fcd61_4" [label="4: BinaryOperatorStmt: Assign \n n$0=*&#GB<codetoanalyze/c/frontend/nestedoperators/union.c>$x:anonymous_struct_nestedoperators_union.c:10:1* [line 34, column 11]\n n$1=*n$0.b:int [line 34, column 11]\n *&#GB<codetoanalyze/c/frontend/nestedoperators/union.c>$y.g.w:int=n$1 [line 34, column 3]\n EXIT_SCOPE(n$0,n$1); [line 34, 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
"main.fad58de7366495db4650cfefac2fcd61_4" -> "main.fad58de7366495db4650cfefac2fcd61_3" ;
[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
"main.fad58de7366495db4650cfefac2fcd61_5" [label="5: BinaryOperatorStmt: Assign \n n$2=*&#GB<codetoanalyze/c/frontend/nestedoperators/union.c>$y.f:int [line 32, column 11]\n *&#GB<codetoanalyze/c/frontend/nestedoperators/union.c>$y.g.u:int=n$2 [line 32, column 3]\n EXIT_SCOPE(n$2); [line 32, column 3]\n " shape="box"]
initial synchronization
10 years ago
Sort nodes when printing cfg to dot file Summary: Currently cfg nodes are written into dot files in whatever order they appear in a hash table. This seems unnecessarily sensitive, so this diff sorts the nodes. Reviewed By: dulmarod Differential Revision: D4232377 fbshipit-source-id: a907cc6
8 years ago
"main.fad58de7366495db4650cfefac2fcd61_5" -> "main.fad58de7366495db4650cfefac2fcd61_4" ;
Change license to MIT Summary: Change the license of the source code from BSD + PATENTS to MIT. Change `checkCopyright` to reflect the new license and learn some new file types. Generated with: ``` git grep BSD | xargs -n 1 ./scripts/checkCopyright -i ``` Reviewed By: jeremydubreil, mbouaziz, jberdine Differential Revision: D8071249 fbshipit-source-id: 97ca23a
7 years ago
"main.fad58de7366495db4650cfefac2fcd61_6" [label="6: BinaryOperatorStmt: Assign \n *&#GB<codetoanalyze/c/frontend/nestedoperators/union.c>$y.f:int=7 [line 31, 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
"main.fad58de7366495db4650cfefac2fcd61_6" -> "main.fad58de7366495db4650cfefac2fcd61_5" ;
[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
"main.fad58de7366495db4650cfefac2fcd61_7" [label="7: BinaryOperatorStmt: Assign \n n$3=*&#GB<codetoanalyze/c/frontend/nestedoperators/union.c>$x:anonymous_struct_nestedoperators_union.c:10:1* [line 30, column 3]\n *n$3.a:int=1 [line 30, column 3]\n EXIT_SCOPE(n$3); [line 30, 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
"main.fad58de7366495db4650cfefac2fcd61_7" -> "main.fad58de7366495db4650cfefac2fcd61_6" ;
initial synchronization
10 years ago
}