diff options
| author | Hal Finkel <hfinkel@anl.gov> | 2013-03-29 08:57:48 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2013-03-29 08:57:48 +0000 |
| commit | f5d5c434606161fb017a34cb656fa4aa5a3e076b (patch) | |
| tree | 4641a3e130c65183f13495d0228b9454e7bf7b60 /lib/Target/PowerPC/PPCInstrInfo.td | |
| parent | ef484a376cce3729b45ad86eab5724aa83a61823 (diff) | |
Add PPC FP rounding instructions fri[mnpz]
These instructions are available on the P5x (and later) and on the A2. They
implement the standard floating-point rounding operations (floor, trunc, etc.).
One caveat: frin (round to nearest) does not implement "ties to even", and so
is only enabled in fast-math mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178337 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCInstrInfo.td')
| -rw-r--r-- | lib/Target/PowerPC/PPCInstrInfo.td | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td index ea0be97e0d..af3b57f2ed 100644 --- a/lib/Target/PowerPC/PPCInstrInfo.td +++ b/lib/Target/PowerPC/PPCInstrInfo.td @@ -1128,9 +1128,38 @@ let Uses = [RM] in { def FCTIWZ : XForm_26<63, 15, (outs F8RC:$frD), (ins F8RC:$frB), "fctiwz $frD, $frB", FPGeneral, [(set f64:$frD, (PPCfctiwz f64:$frB))]>; + def FRSP : XForm_26<63, 12, (outs F4RC:$frD), (ins F8RC:$frB), "frsp $frD, $frB", FPGeneral, [(set f32:$frD, (fround f64:$frB))]>; + + // The frin -> nearbyint mapping is valid only in fast-math mode. + def FRIND : XForm_26<63, 392, (outs F8RC:$frD), (ins F8RC:$frB), + "frin $frD, $frB", FPGeneral, + [(set f64:$frD, (fnearbyint f64:$frB))]>; + def FRINS : XForm_26<63, 392, (outs F4RC:$frD), (ins F4RC:$frB), + "frin $frD, $frB", FPGeneral, + [(set f32:$frD, (fnearbyint f32:$frB))]>; + + def FRIPD : XForm_26<63, 456, (outs F8RC:$frD), (ins F8RC:$frB), + "frip $frD, $frB", FPGeneral, + [(set f64:$frD, (fceil f64:$frB))]>; + def FRIPS : XForm_26<63, 456, (outs F4RC:$frD), (ins F4RC:$frB), + "frip $frD, $frB", FPGeneral, + [(set f32:$frD, (fceil f32:$frB))]>; + def FRIZD : XForm_26<63, 424, (outs F8RC:$frD), (ins F8RC:$frB), + "friz $frD, $frB", FPGeneral, + [(set f64:$frD, (ftrunc f64:$frB))]>; + def FRIZS : XForm_26<63, 424, (outs F4RC:$frD), (ins F4RC:$frB), + "friz $frD, $frB", FPGeneral, + [(set f32:$frD, (ftrunc f32:$frB))]>; + def FRIMD : XForm_26<63, 488, (outs F8RC:$frD), (ins F8RC:$frB), + "frim $frD, $frB", FPGeneral, + [(set f64:$frD, (ffloor f64:$frB))]>; + def FRIMS : XForm_26<63, 488, (outs F4RC:$frD), (ins F4RC:$frB), + "frim $frD, $frB", FPGeneral, + [(set f32:$frD, (ffloor f32:$frB))]>; + def FSQRT : XForm_26<63, 22, (outs F8RC:$frD), (ins F8RC:$frB), "fsqrt $frD, $frB", FPSqrt, [(set f64:$frD, (fsqrt f64:$frB))]>; |