6 Mar
2011
6 Mar
'11
10:46 a.m.
On Sun, 2011-03-06 at 09:46 +0300, Nikitiskiy Dmitriy wrote:
As I see, some examples compilled with similar flags:
/usr/local/src/ghc-7.0.2/bin/ghc --make -O2 -fglasgow-exts -rtsopts -funbox-strict-fields -fexcess-precision -fvia-c -optc-O3 spectralnorm.ghc-4.hs -o spectralnorm.ghc-4.ghc_run
Does this flags enable LLVM optimizations in 7.0.2?
No, that uses C language generation and then passes the resulting C through gcc. To go through LLVM instead, you need to pass -fllvm instead of -fvia-c. Then the -optc-O3 will not be valid; instead, you'll want to play around with flags to -oplo and -optlc to pass them to the LLVM stages. -- Chris