#4223: LLVM slower then NCG, C example
-------------------------------+--------------------------------------------
Reporter: dterei | Owner: dterei
Type: bug | Status: new
Priority: normal | Component: Compiler (LLVM)
Version: 6.12.3 | Keywords:
Os: Linux | Testcase:
Architecture: x86_64 (amd64) | Failure: Runtime performance bug
-------------------------------+--------------------------------------------
Comment(by dterei):
Here are the different LLVM opt flag timing on Linux/32bit:
{{{
* fasm: 5.208s
* viac: 10.564s
* llvm (O0): 5.173s
* llvm (O1): 5.214s
* llvm (O2): 5.264s
* llvm (O3): 5.229s
}}}
Not as much difference as on 64bit, but still, O0 is the best performance!
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4223#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
