| // RUN: llvm-tblgen -gen-dag-isel -I %p/../../include %s 2>&1 | FileCheck %s |
| |
| include "llvm/Target/Target.td" |
| |
| // Minimal Target definition |
| def DemoInstrInfo : InstrInfo; |
| def Demo : Target { |
| let InstructionSet = DemoInstrInfo; |
| } |
| |
| // Some registers which can hold ints or floats |
| foreach i = 0...7 in |
| def "R" # i: Register<"r" # i>; |
| def GPR : RegisterClass<"Demo", [i32, f32], 32, (sequence "R%u", 0, 7)>; |
| |
| // Instruction to convert an int to a float |
| def i2f : Instruction { |
| let Size = 2; |
| let OutOperandList = (outs GPR:$dst); |
| let InOperandList = (ins GPR:$src); |
| let AsmString = "i2f $dst, $src"; |
| } |
| |
| // Some kind of special type-conversion node supported by this target |
| def specialconvert : SDNode<"TEST_TARGET_ISD::SPECIAL_CONVERT", SDTUnaryOp>; |
| |
| // A PatFrags that matches either bitconvert or the special version |
| def anyconvert : PatFrags<(ops node:$src), |
| [(bitconvert node:$src), |
| (specialconvert node:$src)]>; |
| |
| // And a rule that matches that PatFrag and turns it into i2f |
| def : Pat<(f32 (anyconvert (i32 GPR:$val))), (i2f GPR:$val)>; |
| |
| // CHECK: SwitchOpcode{{.*}}ISD::BITCAST |
| // CHECK: MorphNodeTo1{{.*}}i2f |
| // CHECK: SwitchOpcode{{.*}}TEST_TARGET_ISD::SPECIAL_CONVERT |
| // CHECK: MorphNodeTo1{{.*}}i2f |
