diff options
| author | Sanjay Patel <spatel@rotateright.com> | 2015-08-16 20:18:19 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2015-08-16 20:18:19 +0000 |
| commit | 57fd1dc5db880044c6899eae5b840caac1fe790e (patch) | |
| tree | 27175c4bad090bcdca1ecb8dbbb1c1315a624ed0 /llvm/lib/CodeGen/MachineFunctionPass.cpp | |
| parent | 3278b7cd7c80231b2e93edadea922b09051264fa (diff) | |
| download | llvm-57fd1dc5db880044c6899eae5b840caac1fe790e.zip llvm-57fd1dc5db880044c6899eae5b840caac1fe790e.tar.gz llvm-57fd1dc5db880044c6899eae5b840caac1fe790e.tar.bz2 | |
transform fmin/fmax calls when possible (PR24314)
If we can ignore NaNs, fmin/fmax libcalls can become compare and select
(this is what we turn std::min / std::max into).
This IR should then be optimized in the backend to whatever is best for
any given target. Eg, x86 can use minss/maxss instructions.
This should solve PR24314:
https://llvm.org/bugs/show_bug.cgi?id=24314
Differential Revision: http://reviews.llvm.org/D11866
llvm-svn: 245187
Diffstat (limited to 'llvm/lib/CodeGen/MachineFunctionPass.cpp')
0 files changed, 0 insertions, 0 deletions