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Diffstat (limited to 'lib/Target/R600/AMDGPUInstrInfo.td')
-rw-r--r-- | lib/Target/R600/AMDGPUInstrInfo.td | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/lib/Target/R600/AMDGPUInstrInfo.td b/lib/Target/R600/AMDGPUInstrInfo.td new file mode 100644 index 0000000..96368e8 --- /dev/null +++ b/lib/Target/R600/AMDGPUInstrInfo.td @@ -0,0 +1,74 @@ +//===-- AMDGPUInstrInfo.td - AMDGPU DAG nodes --------------*- tablegen -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains DAG node defintions for the AMDGPU target. +// +//===----------------------------------------------------------------------===// + +//===----------------------------------------------------------------------===// +// AMDGPU DAG Profiles +//===----------------------------------------------------------------------===// + +def AMDGPUDTIntTernaryOp : SDTypeProfile<1, 3, [ + SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisInt<0>, SDTCisInt<3> +]>; + +//===----------------------------------------------------------------------===// +// AMDGPU DAG Nodes +// + +// out = ((a << 32) | b) >> c) +// +// Can be used to optimize rtol: +// rotl(a, b) = bitalign(a, a, 32 - b) +def AMDGPUbitalign : SDNode<"AMDGPUISD::BITALIGN", AMDGPUDTIntTernaryOp>; + +// This argument to this node is a dword address. +def AMDGPUdwordaddr : SDNode<"AMDGPUISD::DWORDADDR", SDTIntUnaryOp>; + +// out = a - floor(a) +def AMDGPUfract : SDNode<"AMDGPUISD::FRACT", SDTFPUnaryOp>; + +// out = max(a, b) a and b are floats +def AMDGPUfmax : SDNode<"AMDGPUISD::FMAX", SDTFPBinOp, + [SDNPCommutative, SDNPAssociative] +>; + +// out = max(a, b) a and b are signed ints +def AMDGPUsmax : SDNode<"AMDGPUISD::SMAX", SDTIntBinOp, + [SDNPCommutative, SDNPAssociative] +>; + +// out = max(a, b) a and b are unsigned ints +def AMDGPUumax : SDNode<"AMDGPUISD::UMAX", SDTIntBinOp, + [SDNPCommutative, SDNPAssociative] +>; + +// out = min(a, b) a and b are floats +def AMDGPUfmin : SDNode<"AMDGPUISD::FMIN", SDTFPBinOp, + [SDNPCommutative, SDNPAssociative] +>; + +// out = min(a, b) a snd b are signed ints +def AMDGPUsmin : SDNode<"AMDGPUISD::SMIN", SDTIntBinOp, + [SDNPCommutative, SDNPAssociative] +>; + +// out = min(a, b) a and b are unsigned ints +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>; + +def fpow : SDNode<"ISD::FPOW", SDTFPBinOp>; |