diff options
| author | Tom Stellard <[email protected]> | 2012-05-24 12:17:58 -0400 |
|---|---|---|
| committer | Tom Stellard <[email protected]> | 2012-05-24 14:12:32 -0400 |
| commit | 33e7db9a1dafdcf5c7c745180831403e0485544d (patch) | |
| tree | a2538001313b34330fdf84ffee2a7e9d77cd1394 /src/gallium/drivers/radeon/AMDGPUInstrInfo.td | |
| parent | d088da917bb3495491b9a5da5ca1716ddd91ddd5 (diff) | |
radeon/llvm: Lower UDIV using the Selection DAG
Diffstat (limited to 'src/gallium/drivers/radeon/AMDGPUInstrInfo.td')
| -rw-r--r-- | src/gallium/drivers/radeon/AMDGPUInstrInfo.td | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/AMDGPUInstrInfo.td b/src/gallium/drivers/radeon/AMDGPUInstrInfo.td index f511d3b9b57..5e44ef9c40b 100644 --- a/src/gallium/drivers/radeon/AMDGPUInstrInfo.td +++ b/src/gallium/drivers/radeon/AMDGPUInstrInfo.td @@ -47,3 +47,9 @@ def AMDGPUsmin : SDNode<"AMDGPUISD::SMIN", SDTIntBinOp, def AMDGPUumin : SDNode<"AMDGPUISD::UMIN", SDTIntBinOp, [SDNPCommutative, SDNPAssociative] >; + +// urecip - This operation is a helper for integer division, it returns the +// result of 1 / a as a fractional unsigned integer. +// out = (2^32 / a) + e +// e is rounding error +def AMDGPUurecip : SDNode<"AMDGPUISD::URECIP", SDTIntUnaryOp>; |