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| author | David Greene <greened@obbligato.org> | 2010-04-01 22:43:57 +0000 |
|---|---|---|
| committer | David Greene <greened@obbligato.org> | 2010-04-01 22:43:57 +0000 |
| commit | 86a7e009b9c72cfdeb186ab7f138b855950a9f29 (patch) | |
| tree | eb24eedb1c0e990efe72699d85bdd7ddd7f28e73 /lib/Transforms | |
| parent | 281d37e6f577acd98b3b6fb1ac7a2b65b8ebf8b4 (diff) | |
| download | external_llvm-86a7e009b9c72cfdeb186ab7f138b855950a9f29.zip external_llvm-86a7e009b9c72cfdeb186ab7f138b855950a9f29.tar.gz external_llvm-86a7e009b9c72cfdeb186ab7f138b855950a9f29.tar.bz2 | |
Add some switches helpful for debugging:
-print-before=<Pass Name>
Dump IR before running pass <Pass Name>.
-print-before-all
Dump IR before running each pass.
-print-after-all
Dump IR after running each pass.
These are helpful when tracking down a miscompilation. It is easy to
get IR dumps and do diffs on them, etc.
To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100143 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
0 files changed, 0 insertions, 0 deletions