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| author | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-01-07 21:39:23 +0000 |
|---|---|---|
| committer | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-01-07 21:39:23 +0000 |
| commit | d3ae2866d105f6da6375544eb41aea0dad75a9f2 (patch) | |
| tree | 657172554ba94af328ded24558b69793423d40fc /tools | |
| parent | 2f1bfc4c7937fdf59e2d88e0e23d0657daba79b2 (diff) | |
| download | external_llvm-d3ae2866d105f6da6375544eb41aea0dad75a9f2.zip external_llvm-d3ae2866d105f6da6375544eb41aea0dad75a9f2.tar.gz external_llvm-d3ae2866d105f6da6375544eb41aea0dad75a9f2.tar.bz2 | |
This change is to implement following rules:
o. X/C1 * C2 => X * (C2/C1) (if C2/C1 is neither special FP nor denormal)
o. X/C1 * C2 -> X/(C1/C2) (if C2/C1 is either specical FP or denormal, but C1/C2 is a normal Fp)
Let MDC denote multiplication or dividion with one & only one operand being a constant
o. (MDC ± C1) * C2 => (MDC * C2) ± (C1 * C2)
(so long as the constant-folding doesn't yield any denormal or special value)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171793 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions