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tcg-sparc: Clean up cruft stemming from attempts to use global registers.

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Don't use -ffixed-gN.  Don't link statically.  Don't save/restore
AREG0 around calls.  Don't allocate space on the stack for AREG0 save.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-03-25 21:21:46 +02:00
parent 0c554161b6
commit 4c3204cb12
3 changed files with 26 additions and 59 deletions
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18
tcg/sparc/tcg-target.h
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@ -66,20 +66,16 @@ typedef enum {
#define TCG_CT_CONST_S13 0x200
/* used for function call generation */
#define TCG_REG_CALL_STACK TCG_REG_I6
#define TCG_REG_CALL_STACK TCG_REG_O6
#if TCG_TARGET_REG_BITS == 64
// Reserve space for AREG0
#define TCG_TARGET_STACK_MINFRAME (176 + 4 * (int)sizeof(long) + \
TCG_STATIC_CALL_ARGS_SIZE)
#define TCG_TARGET_CALL_STACK_OFFSET (2047 - 16)
#define TCG_TARGET_STACK_ALIGN 16
#define TCG_TARGET_STACK_BIAS 2047
#define TCG_TARGET_STACK_ALIGN 16
#define TCG_TARGET_CALL_STACK_OFFSET (128 + 6*8 + TCG_TARGET_STACK_BIAS)
#else
// AREG0 + one word for alignment
#define TCG_TARGET_STACK_MINFRAME (92 + (2 + 1) * (int)sizeof(long) + \
TCG_STATIC_CALL_ARGS_SIZE)
#define TCG_TARGET_CALL_STACK_OFFSET TCG_TARGET_STACK_MINFRAME
#define TCG_TARGET_STACK_ALIGN 8
#define TCG_TARGET_STACK_BIAS 0
#define TCG_TARGET_STACK_ALIGN 8
#define TCG_TARGET_CALL_STACK_OFFSET (64 + 4 + 6*4)
#endif
#if TCG_TARGET_REG_BITS == 64