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tcg: improve comment about pure functions 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7007 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-04-06 12:33:51 +00:00
parent c20d7afb36
commit 34d5a9ff63
1 changed files with 2 additions and 2 deletions
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4
tcg/tcg.h
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@ -174,8 +174,8 @@ typedef int TCGv_i64;
#define TCG_CALL_TYPE_REGPARM_1 0x0001 /* i386 style regparm call (1 reg) */
#define TCG_CALL_TYPE_REGPARM_2 0x0002 /* i386 style regparm call (2 regs) */
#define TCG_CALL_TYPE_REGPARM 0x0003 /* i386 style regparm call (3 regs) */
/* A pure function only reads its arguments and globals variables and
cannot raise exceptions. Hence a call to a pure function can be
/* A pure function only reads its arguments and TCG globals variables
and cannot raise exceptions. Hence a call to a pure function can be
safely suppressed if the return value is not used. */
#define TCG_CALL_PURE 0x0010