diff options
Diffstat (limited to 'gcc/config/i386/i386.h')
| -rw-r--r-- | gcc/config/i386/i386.h | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index ef8da17af3f..552515fc6c3 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -446,7 +446,17 @@ extern tree x86_mfence; #define TARGET_MACHO 0 /* Likewise, for the Windows 64-bit ABI. */ -#define TARGET_64BIT_MS_ABI 0 +#define TARGET_64BIT_MS_ABI (TARGET_64BIT && ix86_cfun_abi () == MS_ABI) + +/* Available call abi. */ +enum +{ + SYSV_ABI = 0, + MS_ABI = 1 +}; + +/* The default abi form used by target. */ +#define DEFAULT_ABI SYSV_ABI /* Subtargets may reset this to 1 in order to enable 96-bit long double with the rounding mode forced to 53 bits. */ @@ -804,7 +814,8 @@ enum target_cpu_default #define PARM_BOUNDARY BITS_PER_WORD /* Boundary (in *bits*) on which stack pointer should be aligned. */ -#define STACK_BOUNDARY BITS_PER_WORD +#define STACK_BOUNDARY (TARGET_64BIT && DEFAULT_ABI == MS_ABI ? 128 \ + : BITS_PER_WORD) /* Boundary (in *bits*) on which the stack pointer prefers to be aligned; the compiler cannot rely on having this alignment. */ @@ -1044,6 +1055,8 @@ enum target_cpu_default #define ORDER_REGS_FOR_LOCAL_ALLOC x86_order_regs_for_local_alloc () +#define OVERRIDE_ABI_FORMAT(FNDECL) ix86_call_abi_override (FNDECL) + /* Macro to conditionally modify fixed_regs/call_used_regs. */ #define CONDITIONAL_REGISTER_USAGE \ do { \ @@ -1094,7 +1107,7 @@ do { \ for (i = FIRST_REX_SSE_REG; i <= LAST_REX_SSE_REG; i++) \ reg_names[i] = ""; \ } \ - if (TARGET_64BIT_MS_ABI) \ + if (TARGET_64BIT && DEFAULT_ABI == MS_ABI) \ { \ call_used_regs[4 /*RSI*/] = 0; \ call_used_regs[5 /*RDI*/] = 0; \ @@ -1624,7 +1637,11 @@ enum reg_class This space can be allocated by the caller, or be a part of the machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' says which. */ -#define REG_PARM_STACK_SPACE(FNDECL) 0 +#define REG_PARM_STACK_SPACE(FNDECL) ix86_reg_parm_stack_space (FNDECL) + +#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) (ix86_function_type_abi (FNTYPE) == MS_ABI ? 1 : 0) + +extern unsigned int ix86_reg_parm_stack_space (const_tree); /* Value is the number of bytes of arguments automatically popped when returning from a subroutine call. @@ -1686,6 +1703,8 @@ typedef struct ix86_args { int maybe_vaarg; /* true for calls to possibly vardic fncts. */ int float_in_sse; /* 1 if in 32-bit mode SFmode (2 for DFmode) should be passed in SSE registers. Otherwise 0. */ + int call_abi; /* Set to SYSV_ABI for sysv abi. Otherwise + MS_ABI for ms abi. */ } CUMULATIVE_ARGS; /* Initialize a variable CUM of type CUMULATIVE_ARGS @@ -1953,9 +1972,22 @@ do { \ is also used as the pic register in ELF. So for now, don't allow more than 3 registers to be passed in registers. */ -#define REGPARM_MAX (TARGET_64BIT ? 6 : 3) +/* Abi specific values for REGPARM_MAX and SSE_REGPARM_MAX */ +#define X86_64_REGPARM_MAX 6 +#define X64_REGPARM_MAX 4 +#define X86_32_REGPARM_MAX 3 + +#define X86_64_SSE_REGPARM_MAX 8 +#define X64_SSE_REGPARM_MAX 4 +#define X86_32_SSE_REGPARM_MAX (TARGET_SSE ? 3 : 0) + +#define REGPARM_MAX (TARGET_64BIT ? (TARGET_64BIT_MS_ABI ? X64_REGPARM_MAX \ + : X86_64_REGPARM_MAX) \ + : X86_32_REGPARM_MAX) -#define SSE_REGPARM_MAX (TARGET_64BIT ? 8 : (TARGET_SSE ? 3 : 0)) +#define SSE_REGPARM_MAX (TARGET_64BIT ? (TARGET_64BIT_MS_ABI ? X64_SSE_REGPARM_MAX \ + : X86_64_SSE_REGPARM_MAX) \ + : X86_32_SSE_REGPARM_MAX) #define MMX_REGPARM_MAX (TARGET_64BIT ? 0 : (TARGET_MMX ? 3 : 0)) @@ -2464,6 +2496,9 @@ struct machine_function GTY(()) ix86_current_function_calls_tls_descriptor macro for a better approximation. */ int tls_descriptor_call_expanded_p; + /* This value is used for amd64 targets and specifies the current abi + to be used. MS_ABI means ms abi. Otherwise SYSV_ABI means sysv abi. */ + int call_abi; }; #define ix86_stack_locals (cfun->machine->stack_locals) |