diff options
Diffstat (limited to 'rts/include/stg/MachRegs.h')
| -rw-r--r-- | rts/include/stg/MachRegs.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/rts/include/stg/MachRegs.h b/rts/include/stg/MachRegs.h index 2563f938ca..f0253865ea 100644 --- a/rts/include/stg/MachRegs.h +++ b/rts/include/stg/MachRegs.h @@ -626,6 +626,57 @@ the stack. See Note [Overlapping global registers] for implications. #define REG_HpLim 27 #define REG_CCCS 28 +/* ----------------------------------------------------------------------------- + The loongarch64 register mapping + + Register | Role(s) | Call effect + ------------+-----------------------------------------+------------- + zero | Hard-wired zero | - + ra | Return address | caller-saved + tp | Thread pointer | - + sp | Stack pointer | callee-saved + a0,a1 | Arguments / return values | caller-saved + a2..a7 | Arguments | caller-saved + t0..t8 | - | caller-saved + u0 | Reserve | - + fp | Frame pointer | callee-saved + s0..s8 | - | callee-saved + fa0,fa1 | Arguments / return values | caller-saved + fa2..fa7 | Arguments | caller-saved + ft0..ft15 | - | caller-saved + fs0..fs7 | - | callee-saved + + Each general purpose register as well as each floating-point + register is 64 bits wide, also, the u0 register is called r21 in some cases. + + -------------------------------------------------------------------------- */ +#elif defined(MACHREGS_loongarch64) + +#define REG(x) __asm__("$" #x) + +#define REG_Base s0 +#define REG_Sp s1 +#define REG_Hp s2 +#define REG_R1 s3 +#define REG_R2 s4 +#define REG_R3 s5 +#define REG_R4 s6 +#define REG_R5 s7 +#define REG_SpLim s8 + +#define REG_F1 fs0 +#define REG_F2 fs1 +#define REG_F3 fs2 +#define REG_F4 fs3 + +#define REG_D1 fs4 +#define REG_D2 fs5 +#define REG_D3 fs6 +#define REG_D4 fs7 + +#define MAX_REAL_FLOAT_REG 4 +#define MAX_REAL_DOUBLE_REG 4 + #else #error Cannot find platform to give register info for |