search for: xyztargetlowering

Hi, Once the DAG is built, is there any way to find out what the real type of a certain SDValue is (Type, not just EVT)? And as an example, in the XYZTargetLowering::lowerCall method for my target, is there any way for me to get what Type the SDValue Callee really corrensponds to? Regards, Patrik Hägglund

Hello Patrik, > And as an example, in the XYZTargetLowering::lowerCall method for my target, is there any way for me to get what Type the SDValue Callee really corrensponds to? Why do you need this information there? -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University

...<ga:@addr>; GPR:%vreg0 %R0<def> = COPY %vreg0; GPR:%vreg0 BX_RET pred:14, pred:%noreg, %R0<imp-use> The important point here is that the BX_RET has some kind of <imp-use> of the registers that will be used to return (%R0 in this case). It gets added first in XYZTargetLowering::LowerReturn, and then selected in the .td file using a variadic node. Which other target's LowerReturn are you using? That's probably the first thing we should check is doing its job. The pictures from of "llc -view-isel-dags" and "llc -view-sched-dags" on a simple fun...

On 8 March 2014 00:53, Owen Anderson <resistor at mac.com> wrote: > ISDOpcodes.h contains what documentation there is on the semantics of each > opcode. And TargetOpcodes.h for a few of the post-ISel ones (mostly they're in MachineInstr form, but you'll see them with -view-sched-dags, and occasionally before). Tim.