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| author | Daniel Berlin <dberlin@dberlin.org> | 2017-02-19 04:28:56 +0000 |
|---|---|---|
| committer | Daniel Berlin <dberlin@dberlin.org> | 2017-02-19 04:28:56 +0000 |
| commit | 25f1db11118b8b073cfecd37876fee43228cb9ca (patch) | |
| tree | 661425b9cd69c3d7dfcda839b256ee3d8eb26c97 /llvm/lib/Support/CMakeLists.txt | |
| parent | 3cc0d4e0582272b957a7fa50743bf5cd807bf6f6 (diff) | |
| download | bcm5719-llvm-25f1db11118b8b073cfecd37876fee43228cb9ca.tar.gz bcm5719-llvm-25f1db11118b8b073cfecd37876fee43228cb9ca.zip | |
Add initial support for debug counting
Summary:
We have support for bisection, and bugpoint can reduce testcases
often to a single pass. But that doesn't help reduce it to a single
transform by a single pass. Which debug counting lets us do.
Debug counting lets you instrument a pass so that it only executes a
certain thing (rwhatever you want) after skipping it a certain time of
times, and then only does a certain number of executions before saying
"skip" again.
To make it concrete, for predicateinfo, if i instrument use renaming,
i can make it so it skips renaming the first N uses, renames the next
N, and then skips the rest.
This lets you narrow down a miscompilation to, often, a single
transformation, and then also debug it (by using the same command line
parameters).
Reviewers: chandlerc, davide, mehdi_amini
Subscribers: mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D29998
llvm-svn: 295593
Diffstat (limited to 'llvm/lib/Support/CMakeLists.txt')
| -rw-r--r-- | llvm/lib/Support/CMakeLists.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Support/CMakeLists.txt b/llvm/lib/Support/CMakeLists.txt index f7cfa760ba0..4f7f2166cd0 100644 --- a/llvm/lib/Support/CMakeLists.txt +++ b/llvm/lib/Support/CMakeLists.txt @@ -47,6 +47,7 @@ add_llvm_library(LLVMSupport CrashRecoveryContext.cpp DataExtractor.cpp Debug.cpp + DebugCounter.cpp DeltaAlgorithm.cpp DAGDeltaAlgorithm.cpp Dwarf.cpp |
