Displaying 3 results from an estimated 3 matches for "meg2reg".
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7egreg
2015 Jan 30
1
[LLVMdev] About user of bitcast/GEP instruction
Hi,
If the special handling in the meg2reg pass is to look for lifetime
intrinsics, shouldn't it cast to <IntrisicInst> and then use
getInstrinsicID to check for lifetime_start and lifetime_end ?
The thing that I don't understand is the following piece of code, which
finds all the users and cast it to <Instruction> then...
2015 Jan 30
0
[LLVMdev] About user of bitcast/GEP instruction
----- Original Message -----
> From: "guoqing zhang" <gqzhang81 at gmail.com>
> To: llvmdev at cs.uiuc.edu
> Sent: Friday, January 30, 2015 4:29:16 AM
> Subject: [LLVMdev] About user of bitcast/GEP instruction
>
> Hi,
>
>
> In PromoteMemoryToRegister.cpp, it seems to rely on the fact that the
> only users of bitcast/GEP instruction are lifetime
2015 Jan 30
3
[LLVMdev] About user of bitcast/GEP instruction
Hi,
In PromoteMemoryToRegister.cpp, it seems to rely on the fact that the only
users of bitcast/GEP instruction are lifetime intrinsics
(llvm.lifetime.start/end). I did some searching in llvm/test folder, it
seems to be true.
However, by reading LLVM IR manual, I don't see any restriction stated on
the possible user of bitcast/GEP instruction. So my question is who impose
the restriction ?