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| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-17 12:42:15 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-05-17 12:42:15 +0000 |
| commit | c6e113f5680538a551f79df3ab19b69aed628521 (patch) | |
| tree | 481bad0ddb13bebf28c6adf95a0f0dd778677085 /tcg/tcg.h | |
| parent | 0b6ce4cffe977387b9d578c97d4bbe4fbbb00468 (diff) | |
| download | qemu-c6e113f5680538a551f79df3ab19b69aed628521.tar.gz | |
added 'pure' function attribute - fixed indirect function calls
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4469 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'tcg/tcg.h')
| -rw-r--r-- | tcg/tcg.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -148,6 +148,10 @@ typedef int TCGv; #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 + safely suppressed if the return value is not used. */ +#define TCG_CALL_PURE 0x0010 typedef enum { TCG_COND_EQ, |