9289681ea3
When -trim-egraph is unavailable (say, when you're debugging a crash on a real-world code that takes too long to reduce), it makes sense to view the untrimmed graph up to the crashing node's predecessor, then dump the ID (or a pointer) of the node in the attached debugger, and then trim the dumped graph in order to keep only paths from the root to the node. The newly added --to flag does exactly that: $ exploded-graph-rewriter.py ExprEngine.dot --to 0x12229acd0 Multiple nodes can be specified. Stable IDs of nodes can be used instead of pointers. Differential Revision: https://reviews.llvm.org/D65345 llvm-svn: 368768
48 lines
1.7 KiB
Plaintext
48 lines
1.7 KiB
Plaintext
// RUN: %exploded_graph_rewriter %s \
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// RUN: | FileCheck %s -check-prefixes=ONE,TWO,THREE,FOUR
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// RUN: %exploded_graph_rewriter -s %s \
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// RUN: | FileCheck %s -check-prefixes=ONE,TWO,NOTHREE,FOUR
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// RUN: %exploded_graph_rewriter --to=0x2 %s \
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// RUN: | FileCheck %s -check-prefixes=ONE,TWO,NOTHREE,NOFOUR
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// RUN: %exploded_graph_rewriter --to 2 %s \
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// RUN: | FileCheck %s -check-prefixes=ONE,TWO,NOTHREE,NOFOUR
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// RUN: %exploded_graph_rewriter --to 2,3 %s \
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// RUN: | FileCheck %s -check-prefixes=ONE,TWO,THREE,NOFOUR
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// RUN: %exploded_graph_rewriter --to 4 %s \
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// RUN: | FileCheck %s -check-prefixes=ONE,TWO,THREE,FOUR
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// RUN: %exploded_graph_rewriter --to 4 -s %s \
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// RUN: | FileCheck %s -check-prefixes=ONE,TWO,NOTHREE,FOUR
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// FIXME: Substitution doesn't seem to work on Windows.
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// UNSUPPORTED: system-windows
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Node0x1 [shape=record,label=
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"{{ "node_id": 1, "pointer": "0x1", "has_report": false, "is_sink": false,
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"program_state": null, "program_points": []}\l}"];
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Node0x2 [shape=record,label=
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"{{ "node_id": 2, "pointer": "0x2", "has_report": false, "is_sink": false,
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"program_state": null, "program_points": []}\l}"];
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Node0x3 [shape=record,label=
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"{{ "node_id": 3, "pointer": "0x3", "has_report": false, "is_sink": false,
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"program_state": null, "program_points": []}\l}"];
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Node0x4 [shape=record,label=
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"{{ "node_id": 4, "pointer": "0x4", "has_report": false, "is_sink": false,
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"program_state": null, "program_points": []}\l}"];
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Node0x1 -> Node0x2;
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Node0x1 -> Node0x3;
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Node0x2 -> Node0x4;
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Node0x3 -> Node0x4;
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// ONE: Node0x1
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// NOTONE-NOT: Node0x1
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// TWO: Node0x2
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// NOTTWO-NOT: Node0x2
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// THREE: Node0x3
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// NOTTHREE-NOT: Node0x3
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// FOUR: Node0x4
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// NOTFOUR-NOT: Node0x4
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