summaryrefslogtreecommitdiff
path: root/lib/Target/R600/AMDGPUInstrInfo.td
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Target/R600/AMDGPUInstrInfo.td')
-rw-r--r--lib/Target/R600/AMDGPUInstrInfo.td74
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 0000000000..96368e8541
--- /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>;