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| author | Duncan Sands <baldrick@free.fr> | 2010-11-04 21:16:46 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2010-11-04 21:16:46 +0000 |
| commit | 1e92ec688624d17b552c88afc956f61da4948cbb (patch) | |
| tree | d57525ff5824f627b43923e2d7f3a21c77349598 /lib/Support/CrashRecoveryContext.cpp | |
| parent | 42c9b2555407a8aae2d81bf820dc95d16f4993c5 (diff) | |
When passing a huge parameter using the byval mechanism, a long
sequence of loads and stores was being generated to perform the
copy on the x86 targets if the parameter was less than 4 byte
aligned, causing llc to use up vast amounts of memory and time.
Use a "rep movs" form instead. PR7170.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118260 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/CrashRecoveryContext.cpp')
0 files changed, 0 insertions, 0 deletions