Displaying 2 results from an estimated 2 matches for "targetinstruct".
2009 Jul 10
2
[LLVMdev] Help: Instruction Pattern Matching question
Hello,
I am having some trouble matching patterns in targetinstructioninfo.td file with the CodeGen expectation. Could anybody please help?
Here is the example:
I want to emit instruction for adding 2 different kind of oprands. Basically i want to mix register types when I define the instruction for add,sub etc
I define the instruction TargetInstruction.td as fo...
2017 Nov 09
2
Get basic-block cycle cost from LLVM
Hi all,
I'm interested in obtaining the cycles spend by the CPU from LLVM and i was
wondering if this was possible to obtain this with the scheduling
information from LLVM. (For the cortex-m0 in particular).
I found the following function : getInstrLatency() in the TargetInstrInfo
class.
If i sum the latencies of the instructions in a basic block i suppose i
will get the total cycle cost