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Hi All, I was looking into MachineCopyPropagationPass.ccp file in llvm, which in first look, looks likes to me doing only redundant copy elimination in same basic block. I am interested in any pass which is doing copy propogation across the basic block in a function. Let me know if any such pass exist ? Thanks, Deepali -------------- next part -------------- An HTML attachment was scrubbed...

Hi, Just to clarify I am looking for a whole machine function analysis not just something restricted to within a machine basic block. Thanks. Regards, Venu. From: Raghavan, Venugopal Sent: Saturday, September 02, 2017 12:56 PM To: llvm-dev at lists.llvm.org Subject: Reaching definitions on Machine IR post register allocation Hi, Given a definition of a register by a machine instruction in

...gt;> >>> Hexagon has RDF that does exactly that. At the moment it's under lib/Target/Hexagon, but it meant to be target-independent. It won't work with X86 due to a known issue related to register units, but it should work fine for other targets. See https://reviews.llvm.org/D29295 about moving it to lib/CodeGen. >>> >>> -Krzysztof >>> >>> On 9/4/2017 9:00 AM, Raghavan, Venugopal via llvm-dev wrote: >>>> Hi, >>>> >>>> Just to clarify I am looking for a whole machine function analysis >>>>...

...s under lib/Target/Hexagon, but it meant to be > target-independent.  It won't work with X86 due to a > known issue related to register units, but it should > work fine for other targets.  See > https://reviews.llvm.org/D29295 about moving it to > lib/CodeGen. > > -Krzysztof > > On 9/4/2017 9:00 AM, Raghavan, Venugopal via llvm-dev wrote: > > Hi, > > Just to clarify I am looking for a whole machine >...

...s under lib/Target/Hexagon, but it meant to be > target-independent.  It won't work with X86 due to a > known issue related to register units, but it should > work fine for other targets.  See > https://reviews.llvm.org/D29295 about moving it to > lib/CodeGen. > > -Krzysztof > > On 9/4/2017 9:00 AM, Raghavan, Venugopal via llvm-dev wrote: > > Hi, > > Just to clarify I am looking for a whole machine >...

...gt;                  target-independent.  It won't work with X86 > due to a >                  known issue related to register units, but it > should >                  work fine for other targets.  See > https://reviews.llvm.org/D29295 about moving it to >                  lib/CodeGen. > >                  -Krzysztof > >                  On 9/4/2017 9:00 AM, Raghavan, Venugopal via > llvm-dev wrote: > >                      Hi, > >            ...

...ependent. It won't work with X86 >>> due to a >>> known issue related to register units, but it >>> should >>> work fine for other targets. See >>> https://reviews.llvm.org/D29295 about moving it to >>> lib/CodeGen. >>> >>> -Krzysztof >>> >>> On 9/4/2017 9:00 AM, Raghavan, Venugopal via >>> llvm-dev wrote: >>> >>>...