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| author | Reid Spencer <rspencer@reidspencer.com> | 2004-06-19 18:24:05 +0000 |
|---|---|---|
| committer | Reid Spencer <rspencer@reidspencer.com> | 2004-06-19 18:24:05 +0000 |
| commit | 006b386e6f06db76947f662722e8f8f8c7380abc (patch) | |
| tree | 0f7bc91f1b16013997a1d2ebf81edd6164e26fd7 /llvm/docs | |
| parent | 4027500e1c56d3e380f2272691349236caddb9cb (diff) | |
| download | bcm5719-llvm-006b386e6f06db76947f662722e8f8f8c7380abc.tar.gz bcm5719-llvm-006b386e6f06db76947f662722e8f8f8c7380abc.zip | |
Add a note about GCC 3.3.2 optimization bug that causes llc to spin.
llvm-svn: 14250
Diffstat (limited to 'llvm/docs')
| -rw-r--r-- | llvm/docs/ReleaseNotes.html | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/docs/ReleaseNotes.html b/llvm/docs/ReleaseNotes.html index 9d199c8b845..b160b6751ca 100644 --- a/llvm/docs/ReleaseNotes.html +++ b/llvm/docs/ReleaseNotes.html @@ -651,7 +651,13 @@ href="http://gcc.gnu.org/gcc-3.4/changes.html">GCC 3.4 release notes</a>.</li> <div class="doc_text"> <ul> -<li>None so far. + <li>Optimized (Release) versions of LLVM built with GCC 3.3.2 or 3.3.3 will + produce an llc tool that always enters an infinite loop due to what + appears to be an optimization bug (-O2 and -O3) in those versions of GCC. + This problem does not happen in GCC 3.3.1 nor GCC 3.4.0 nor does it happen if + you build a Debug version of LLVM. You are cautioned not to use GCC 3.3.2 or + GCC 3.3.3 to build Optimized versions of LLVM. It is unclear whether this problem + affects other backends but it is unlikely.</li> </ul> </div> |
