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Add the jit_callee_save_p interface and extra register definitions.

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* check/self.c, check/self.ok: New files implementing simple
	consistency check assertions. At first validating some macros
	that use values from different sources agree.

	* check/Makefile.am: Update for the new test case.

	* include/lightning.h,  lib/lightning.c: Add the new
	jit_callee_save_p() call, that is intended to be used when
	writing complex code using lightning, so that one does not
	need to verify what backend is being used, or have access to
	private data, to query if a register is callee save or not;
	on several backends the scratch registers are actually callee
	save.

	* include/lightning/jit_aarch64.h, include/lightning/jit_arm.h,
	include/lightning/jit_hppa.h, include/lightning/jit_mips.h,
	include/lightning/jit_ppc.h, include/lightning/jit_sparc.h,
	include/lightning/jit_x86.h: Add an explicit definition for
	JIT_R3-JIT_Rn, JIT_V3-JIT_Vn and JIT_F6-JIT_Fn when applicable.
	This allows one to write code based on "#if defined(JIT_XN)"
	and therefore, not need to check what is the current backend
	or have access to private data structures. This is particularly
	useful when writing virtual machines with several specialized,
	global registers.

	* lib/jit_ia64.c: Properly flag the callee save general
	purpose registers as such, so that jit_callee_save_p() works
	as intended.
This commit is contained in:
pcpa 2013-09-10 21:41:49 -03:00
parent 15a3ec2567
commit a62f405751
14 changed files with 228 additions and 98 deletions
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29
include/lightning/jit_mips.h
View file

@ -44,14 +44,32 @@ typedef enum {
#define jit_v_num() 8
#define jit_arg_f_reg_p(i) ((i) >= 0 && (i) < 4)
#define jit_f(i) (_F0 + (i))
#define jit_f_num() 14
#if NEW_ABI
# define jit_f_num() 6
#else
# define jit_f_num() 8
#endif
_AT,
#define JIT_R0 _V0
#define JIT_R1 _V1
#if NEW_ABI
# define JIT_R2 _T4
# define JIT_R3 _T5
# define JIT_R4 _T6
# define JIT_R5 _T7
# define JIT_R6 _T8
# define JIT_R7 _T9
#else
# define JIT_R2 _T0
# define JIT_R3 _T1
# define JIT_R4 _T2
# define JIT_R5 _T3
# define JIT_R6 _T4
# define JIT_R7 _T5
# define JIT_R8 _T6
# define JIT_R9 _T7
# define JIT_R10 _T8
# define JIT_R11 _T9
#endif
_V0, _V1,
#if !NEW_ABI
@ -61,6 +79,11 @@ typedef enum {
#define JIT_V0 _S0
#define JIT_V1 _S1
#define JIT_V2 _S2
#define JIT_V3 _S3
#define JIT_V4 _S4
#define JIT_V5 _S5
#define JIT_V6 _S6
#define JIT_V7 _S7
_S0, _S1, _S2, _S3, _S4, _S5, _S6, _S7,
_ZERO, _K0, _K1, _RA,
_GP,
@ -76,6 +99,10 @@ typedef enum {
#define JIT_F3 _F6
#define JIT_F4 _F8
#define JIT_F5 _F10
#if !NEW_ABI
# define JIT_F6 _F16
# define JIT_F7 _F18
#endif
_F0, _F2, _F4, _F6, _F8, _F10,
/* callee save float registers */
#if !NEW_ABI