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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-23 02:23:00 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-23 02:23:00 +0000 |
| commit | 7806c0778f22552ebe6711f3dc43887dc6097bfc (patch) | |
| tree | 2eb6e70baa395b80e298fba8b94c4e131b73e3c2 /docs/CommandGuide/llvm-build.rst | |
| parent | ce0a5cda8aa547d5219da70a68bef40d5ed8392c (diff) | |
| download | external_llvm-7806c0778f22552ebe6711f3dc43887dc6097bfc.zip external_llvm-7806c0778f22552ebe6711f3dc43887dc6097bfc.tar.gz external_llvm-7806c0778f22552ebe6711f3dc43887dc6097bfc.tar.bz2 | |
Teach LiveVariables to handle <undef> operands.
It's simple: Don't treat <undef> operands as uses, and don't assume a
virtual register has a defining instruction unless a real use has been
seen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159061 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/CommandGuide/llvm-build.rst')
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