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2013 Jan 04
0
[LLVMdev] [Polly] Aliasing problems escalation (WAS: Re: [DragonEgg] [Polly] Should we expect DragonEgg to produce identical LLVM IR for identical GIMPLE?)
PS: Another possibility is to do link-time optimization, since at that point the
optimizers are capable of finding out if that global is used anywhere else or
not.
2013 Jan 04
4
[LLVMdev] [Polly] Aliasing problems escalation (WAS: Re: [DragonEgg] [Polly] Should we expect DragonEgg to produce identical LLVM IR for identical GIMPLE?)
Hi,
Here's another case, different in high-level, but similar in low-level.
When Fortran allocatable array is defined in module, its actual dimensions
are kept in internal structure. Loads originated from reading these
dimensions confuse Polly on any use of this array.
Attachments:
1) Sample Fortran source code (to be compiled with and without -DMODULE to
see failing and working version,