diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.h')
| -rw-r--r-- | gcc/config/rs6000/rs6000.h | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index 6dd0bcbf4c6..eb59235ec61 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -1527,18 +1527,14 @@ extern enum reg_class rs6000_constraints[RS6000_CONSTRAINT_MAX]; #define FRAME_GROWS_DOWNWARD (flag_stack_protect != 0 \ || (flag_sanitize & SANITIZE_ADDRESS) != 0) -/* Size of the outgoing register save area */ -#define RS6000_REG_SAVE \ - ((DEFAULT_ABI == ABI_V4 ? 0 : 32) << (TARGET_64BIT ? 1 : 0)) - /* Size of the fixed area on the stack */ #define RS6000_SAVE_AREA \ - ((DEFAULT_ABI == ABI_V4 ? 8 : 24) << (TARGET_64BIT ? 1 : 0)) + ((DEFAULT_ABI == ABI_V4 ? 8 : DEFAULT_ABI == ABI_ELFv2 ? 16 : 24) \ + << (TARGET_64BIT ? 1 : 0)) -/* MEM representing address to save the TOC register */ -#define RS6000_SAVE_TOC gen_rtx_MEM (Pmode, \ - plus_constant (Pmode, stack_pointer_rtx, \ - (TARGET_32BIT ? 20 : 40))) +/* Stack offset for toc save slot. */ +#define RS6000_TOC_SAVE_SLOT \ + ((DEFAULT_ABI == ABI_ELFv2 ? 12 : 20) << (TARGET_64BIT ? 1 : 0)) /* Align an address */ #define RS6000_ALIGN(n,a) (((n) + (a) - 1) & ~((a) - 1)) @@ -1588,7 +1584,7 @@ extern enum reg_class rs6000_constraints[RS6000_CONSTRAINT_MAX]; /* Define this if stack space is still allocated for a parameter passed in a register. The value is the number of bytes allocated to this area. */ -#define REG_PARM_STACK_SPACE(FNDECL) RS6000_REG_SAVE +#define REG_PARM_STACK_SPACE(FNDECL) rs6000_reg_parm_stack_space((FNDECL)) /* Define this if the above stack space is to be considered part of the space allocated by the caller. */ @@ -1641,10 +1637,17 @@ extern enum reg_class rs6000_constraints[RS6000_CONSTRAINT_MAX]; #define ALTIVEC_ARG_MAX_REG (ALTIVEC_ARG_MIN_REG + 11) #define ALTIVEC_ARG_NUM_REG (ALTIVEC_ARG_MAX_REG - ALTIVEC_ARG_MIN_REG + 1) +/* Maximum number of registers per ELFv2 homogeneous aggregate argument. */ +#define AGGR_ARG_NUM_REG 8 + /* Return registers */ #define GP_ARG_RETURN GP_ARG_MIN_REG #define FP_ARG_RETURN FP_ARG_MIN_REG #define ALTIVEC_ARG_RETURN (FIRST_ALTIVEC_REGNO + 2) +#define FP_ARG_MAX_RETURN (DEFAULT_ABI != ABI_ELFv2 ? FP_ARG_RETURN \ + : (FP_ARG_RETURN + AGGR_ARG_NUM_REG - 1)) +#define ALTIVEC_ARG_MAX_RETURN (DEFAULT_ABI != ABI_ELFv2 ? ALTIVEC_ARG_RETURN \ + : (ALTIVEC_ARG_RETURN + AGGR_ARG_NUM_REG - 1)) /* Flags for the call/call_value rtl operations set up by function_arg */ #define CALL_NORMAL 0x00000000 /* no special processing */ @@ -1664,8 +1667,10 @@ extern enum reg_class rs6000_constraints[RS6000_CONSTRAINT_MAX]; On RS/6000, this is r3, fp1, and v2 (for AltiVec). */ #define FUNCTION_VALUE_REGNO_P(N) \ ((N) == GP_ARG_RETURN \ - || ((N) == FP_ARG_RETURN && TARGET_HARD_FLOAT && TARGET_FPRS) \ - || ((N) == ALTIVEC_ARG_RETURN && TARGET_ALTIVEC && TARGET_ALTIVEC_ABI)) + || ((N) >= FP_ARG_RETURN && (N) <= FP_ARG_MAX_RETURN \ + && TARGET_HARD_FLOAT && TARGET_FPRS) \ + || ((N) >= ALTIVEC_ARG_RETURN && (N) <= ALTIVEC_ARG_MAX_RETURN \ + && TARGET_ALTIVEC && TARGET_ALTIVEC_ABI)) /* 1 if N is a possible register number for function argument passing. On RS/6000, these are r3-r10 and fp1-fp13. |
