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Workaround optimization bug in gcc

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Unfortunatly we need to slow down to -O1 to be sure
it works always.

Note that sometime it works also with -O2 or even -O3,
but user has to try himself.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-12-26 19:24:42 +01:00
parent ba07b95ee0
commit 2643f1552f
1 changed files with 4 additions and 1 deletions
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5
src/Makefile
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@@ -25,8 +25,11 @@ EXE = stockfish
### ==========================================================================
### Compiler speed switches for both GCC and ICC. These settings are generally
### fast on a broad range of systems, but may be changed experimentally
###
### NOTE: Some versions of gcc miscompile value.h with -O2 or -O3, this is the
### safe setup, try changing to -O3 or -O2 and verify it works for you.
### ==========================================================================
GCCFLAGS = -O3 -msse
GCCFLAGS = -O1 -msse
ICCFLAGS = -fast -msse
ICCFLAGS-OSX = -fast -mdynamic-no-pic