| commit | 63079f0757785c5c461bafdd3101ee40aeb717fe | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Sat Dec 29 08:37:08 2007 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Sat Dec 29 08:37:08 2007 +0000 |
| tree | 37d7b2cfa774bb40277cbba69dda31a00ea2d3bd | |
| parent | 69bfbdfaeebf366b70a1aa3ba650685493da9e8c [diff] |
Fold comparisons against a constant nan, and optimize ORD/UNORD comparisons with a constant. This allows us to compile isnan to: _foo: fcmpu cr7, f1, f1 mfcr r2 rlwinm r3, r2, 0, 31, 31 blr instead of: LCPI1_0: ; float .space 4 _foo: lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr7, f1, f0 mfcr r2 rlwinm r3, r2, 0, 31, 31 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45405 91177308-0d34-0410-b5e6-96231b3b80d8