search for: add_pf

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2012 Aug 28
1
[LLVMdev] TableGen backend support to express relations between instruction
Hi Hal, I will try to explain the functionality using a simple example. Let's say that we have three formats for 'ADD' instruction and we want to relate them. ADD - non-predicated form ADD_pt : predicate true ADD_pf : predicate false We can define the relationship between the non-predicated instructions and their predicate formats as follows: def getPredOpcode : InstrMapping { // InstrMapping is a new class defined in Target.td // Used to filter instructions that have this kind of relationship let FilterCla...
2012 Aug 28
0
[LLVMdev] TableGen backend support to express relations between instruction
Jyotsna, I hadn't been following this, so I apologize if this has already been provided, but can you give a quick example of how this functionality is used? Thanks in advance, Hal On Tue, 28 Aug 2012 13:01:17 -0500 "Jyotsna Verma" <jverma at codeaurora.org> wrote: > Hi Jakob, > > Here is the first draft of the patch to add TableGen backend support > for the
2012 Aug 28
4
[LLVMdev] TableGen backend support to express relations between instruction
Hi Jakob, Here is the first draft of the patch to add TableGen backend support for the instruction mapping tables. Please take a look and let me know your suggestions. As of now, I create one mapping table per relation which results into a long .inc file. So, I'm planning to combine everything into a single table and will include APIs (one per relation) to query from this table. Thanks,