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| author | Eli Friedman <eli.friedman@gmail.com> | 2010-06-03 03:49:50 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2010-06-03 03:49:50 +0000 |
| commit | 64d4b7c572c6b6a711dfdcd62a7919ba3c4665b9 (patch) | |
| tree | 610f0a9753ebeb3ed25fd52c3e281b60d66c0a3e /lib/CodeGen/AsmPrinter/AsmPrinter.cpp | |
| parent | 666e58e1c851cfc80ca7c24e32710115b713ad0d (diff) | |
| download | external_llvm-64d4b7c572c6b6a711dfdcd62a7919ba3c4665b9.zip external_llvm-64d4b7c572c6b6a711dfdcd62a7919ba3c4665b9.tar.gz external_llvm-64d4b7c572c6b6a711dfdcd62a7919ba3c4665b9.tar.bz2 | |
Implement expansion in type legalization for add/sub with overflow. The
expansion is the same as that used by LegalizeDAG.
The resulting code sucks in terms of performance/codesize on x86-32 for a
64-bit operation; I haven't looked into whether different expansions might be
better in general.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105378 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter/AsmPrinter.cpp')
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