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| author | Micah Villmow <villmow@gmail.com> | 2012-10-10 20:50:51 +0000 |
|---|---|---|
| committer | Micah Villmow <villmow@gmail.com> | 2012-10-10 20:50:51 +0000 |
| commit | 0242b9b543b47b770ff5e612f73ec3b5167bd1dd (patch) | |
| tree | c0e4f08bebb936b97eee8bcc2aa9c37d4d157463 /llvm/lib/Support/DAGDeltaAlgorithm.cpp | |
| parent | c399c753d9f22da10d06d2fa5e37e9ebad7bf665 (diff) | |
| download | bcm5719-llvm-0242b9b543b47b770ff5e612f73ec3b5167bd1dd.tar.gz bcm5719-llvm-0242b9b543b47b770ff5e612f73ec3b5167bd1dd.zip | |
Add in support for expansion of all of the comparison operations to the absolute minimum required set. This allows a backend to expand any arbitrary set of comparisons as long as a minimum set is supported.
The minimum set of required instructions is ISD::AND, ISD::OR, ISD::SETO(or ISD::SETOEQ) and ISD::SETUO(or ISD::SETUNE). Everything is expanded into one of two patterns:
Pattern 1: (LHS CC1 RHS) Opc (LHS CC2 RHS)
Pattern 2: (LHS CC1 LHS) Opc (RHS CC2 RHS)
llvm-svn: 165655
Diffstat (limited to 'llvm/lib/Support/DAGDeltaAlgorithm.cpp')
0 files changed, 0 insertions, 0 deletions
