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CIRCT 22.0.0git
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Classes | |
| struct | Impl |
| Internal implementation for LongestPathAnalysis. More... | |
Public Member Functions | |
| __init__ (self, module, bool collect_debug_info=True, bool keep_only_max_delay_paths=False, bool lazy_computation=False, str top_module_name="") | |
| LongestPathCollection | get_paths (self, value, int bit_pos, bool elaborate_paths=True) |
| LongestPathCollection | get_internal_paths (self, str module_name, bool elaborate_paths=True) |
| LongestPathCollection | get_paths_from_input_ports_to_internal (self, str module_name) |
| LongestPathCollection | get_paths_from_internal_to_output_ports (self, str module_name) |
| LongestPathCollection | get_all_paths (self, str module_name, bool elaborate_paths=True) |
Public Attributes | |
| analysis | |
Main interface for performing longest path analysis on Synth dialect.
This class provides a Python wrapper around the C++ LongestPathAnalysis,
enabling timing analysis of Synth dialect. It can identify critical timing
paths and provide detailed path information.
Attributes:
analysis: The underlying C++ analysis object
| synth.LongestPathAnalysis.__init__ | ( | self, | |
| module, | |||
| bool | collect_debug_info = True, |
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| bool | keep_only_max_delay_paths = False, |
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| bool | lazy_computation = False, |
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| str | top_module_name = "" |
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| ) |
Initialize the longest path analysis for a given module.
Args:
module: The MLIR module to analyze
collect_debug_info: Whether to include debug points in the analysis.
Debug points provide additional information about the path,
but increase analysis time and memory usage.
keep_only_max_delay_paths: Keep only maximum-delay paths in collections.
lazy_computation: Enable lazy (on-demand) computation.
Definition at line 362 of file synth.py.
Referenced by synth.LongestPathCollection.drop_non_critical_paths(), and synth.LongestPathCollection.merge().
| LongestPathCollection synth.LongestPathAnalysis.get_all_paths | ( | self, | |
| str | module_name, | ||
| bool | elaborate_paths = True |
||
| ) |
Get all paths in the module (internal and external paths combined).
Args:
module_name: Name of the module to analyze
elaborate_paths: Whether to include full hierarchical instance information
(only applies to internal paths)
Returns:
LongestPathCollection containing all paths sorted by delay
Definition at line 455 of file synth.py.
References synth.LongestPathAnalysis.get_internal_paths(), synth.LongestPathAnalysis.get_paths_from_input_ports_to_internal(), and synth.LongestPathAnalysis.get_paths_from_internal_to_output_ports().
| LongestPathCollection synth.LongestPathAnalysis.get_internal_paths | ( | self, | |
| str | module_name, | ||
| bool | elaborate_paths = True |
||
| ) |
Get internal paths within the module.
Internal paths are paths that start and end at sequential elements
(registers/flip-flops), forming complete paths through combinational
logic. These paths may cross module boundaries but both endpoints are
sequential elements, not ports.
Args:
module_name: Name of the module to analyze
elaborate_paths: Whether to include full hierarchical instance information
Returns:
LongestPathCollection containing all internal paths sorted by delay
Definition at line 400 of file synth.py.
References synth.LongestPathAnalysis.analysis, LongestPathAnalysisWrapper.analysis, DatapathCompressOpConversion.analysis, ArcInliner.analysis, and synth.LongestPathAnalysis.get_internal_paths().
Referenced by synth.LongestPathAnalysis.get_all_paths(), and synth.LongestPathAnalysis.get_internal_paths().
| LongestPathCollection synth.LongestPathAnalysis.get_paths | ( | self, | |
| value, | |||
| int | bit_pos, | ||
| bool | elaborate_paths = True |
||
| ) |
Perform longest path analysis and return all timing paths to the
specified value and bit position.
Args:
value: The value to analyze
bit_pos: The bit position to analyze
elaborate_paths: Whether to elaborate the paths with detailed information
Returns:
LongestPathCollection containing all paths sorted by delay
Definition at line 383 of file synth.py.
References synth.LongestPathAnalysis.analysis, LongestPathAnalysisWrapper.analysis, DatapathCompressOpConversion.analysis, ArcInliner.analysis, and synth.LongestPathAnalysis.get_paths().
Referenced by synth.LongestPathAnalysis.get_paths().
| LongestPathCollection synth.LongestPathAnalysis.get_paths_from_input_ports_to_internal | ( | self, | |
| str | module_name | ||
| ) |
Get external paths from module input ports to internal sequential elements.
These are input-to-register paths that start at module input ports and end
at internal sequential elements (registers/flip-flops).
Args:
module_name: Name of the module to analyze
Returns:
LongestPathCollection containing input-to-internal paths sorted by delay
Definition at line 421 of file synth.py.
References synth.LongestPathAnalysis.analysis, LongestPathAnalysisWrapper.analysis, DatapathCompressOpConversion.analysis, ArcInliner.analysis, and synth.LongestPathAnalysis.get_paths_from_input_ports_to_internal().
Referenced by synth.LongestPathAnalysis.get_all_paths(), and synth.LongestPathAnalysis.get_paths_from_input_ports_to_internal().
| LongestPathCollection synth.LongestPathAnalysis.get_paths_from_internal_to_output_ports | ( | self, | |
| str | module_name | ||
| ) |
Get external paths from internal sequential elements to module output ports.
These are register-to-output paths that start at internal sequential elements
(registers/flip-flops) and end at module output ports.
Args:
module_name: Name of the module to analyze
Returns:
LongestPathCollection containing internal-to-output paths sorted by delay
Definition at line 438 of file synth.py.
References synth.LongestPathAnalysis.analysis, LongestPathAnalysisWrapper.analysis, DatapathCompressOpConversion.analysis, ArcInliner.analysis, and synth.LongestPathAnalysis.get_paths_from_internal_to_output_ports().
Referenced by synth.LongestPathAnalysis.get_all_paths(), and synth.LongestPathAnalysis.get_paths_from_internal_to_output_ports().
| synth.LongestPathAnalysis.analysis |
1.9.8