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gallivm: Prefer the standard JIT engine whenever possible. 

Testing shows that the standard JIT engine retrofited with AVX support is quite
stable and as capable to handle AVX instructions as MC-JIT is.

And the old JIT is much more memory efficient, as we don't need to
allocate one engine instance per shader, as we do for MC-JIT due to its
incompleteness.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
José Fonseca 2012-07-20 18:17:14 +01:00
parent cb149bf9e1
commit c30bf68946
1 changed files with 4 additions and 4 deletions
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8
src/gallium/auxiliary/gallivm/lp_bld_init.c
View File

@ -49,12 +49,12 @@
* - MC-JIT supports limited OSes (MacOSX and Linux)
* - standard JIT in LLVM 3.1, with backports
*/
#if HAVE_LLVM >= 0x0301 && (defined(PIPE_OS_LINUX) || defined(PIPE_OS_APPLE))
# define USE_MCJIT 1
# define HAVE_AVX 1
#elif HAVE_LLVM >= 0x0302 || (HAVE_LLVM == 0x0301 && defined(HAVE_JIT_AVX_SUPPORT))
#if HAVE_LLVM >= 0x0302 || (HAVE_LLVM == 0x0301 && defined(HAVE_JIT_AVX_SUPPORT))
# define USE_MCJIT 0
# define HAVE_AVX 1
#elif HAVE_LLVM == 0x0301 && (defined(PIPE_OS_LINUX) || defined(PIPE_OS_APPLE))
# define USE_MCJIT 1
# define HAVE_AVX 1
#else
# define USE_MCJIT 0
# define HAVE_AVX 0