diff options
Diffstat (limited to 'gcc/config/alpha/alpha.h')
| -rw-r--r-- | gcc/config/alpha/alpha.h | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index 9e39a40395b..62e9f7bbf53 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -67,6 +67,8 @@ Boston, MA 02111-1307, USA. */ builtin_define ("_IEEE_FP"); \ if (TARGET_IEEE_WITH_INEXACT) \ builtin_define ("_IEEE_FP_INEXACT"); \ + if (TARGET_LONG_DOUBLE_128) \ + builtin_define ("__LONG_DOUBLE_128__"); \ \ /* Macros dependent on the C dialect. */ \ SUBTARGET_LANGUAGE_CPP_BUILTINS(); \ @@ -222,6 +224,11 @@ extern int alpha_tls_size; #define MASK_TLS_KERNEL (1 << 14) #define TARGET_TLS_KERNEL (target_flags & MASK_TLS_KERNEL) +/* This means use IEEE quad-format for long double. Assumes the + presence of the GEM support library routines. */ +#define MASK_LONG_DOUBLE_128 (1 << 16) +#define TARGET_LONG_DOUBLE_128 (target_flags & MASK_LONG_DOUBLE_128) + /* This means that the processor is an EV5, EV56, or PCA56. Unlike alpha_cpu this is not affected by -mtune= setting. */ #define MASK_CPU_EV5 (1 << 28) @@ -254,7 +261,7 @@ extern int alpha_tls_size; #define TARGET_CAN_FAULT_IN_PROLOGUE 0 #endif #ifndef TARGET_HAS_XFLOATING_LIBS -#define TARGET_HAS_XFLOATING_LIBS 0 +#define TARGET_HAS_XFLOATING_LIBS TARGET_LONG_DOUBLE_128 #endif #ifndef TARGET_PROFILING_NEEDS_GP #define TARGET_PROFILING_NEEDS_GP 0 @@ -312,6 +319,10 @@ extern int alpha_tls_size; N_("Emit 32-bit relocations to the small data areas")}, \ {"tls-kernel", MASK_TLS_KERNEL, \ N_("Emit rdval instead of rduniq for thread pointer")}, \ + {"long-double-128", MASK_LONG_DOUBLE_128, \ + N_("Use 128-bit long double")}, \ + {"long-double-64", -MASK_LONG_DOUBLE_128, \ + N_("Use 64-bit long double")}, \ {"", TARGET_DEFAULT | TARGET_CPU_DEFAULT \ | TARGET_DEFAULT_EXPLICIT_RELOCS, ""} } @@ -421,7 +432,18 @@ extern const char *alpha_tls_size_string; /* For -mtls-size= */ #define FLOAT_TYPE_SIZE 32 #define DOUBLE_TYPE_SIZE 64 -#define LONG_DOUBLE_TYPE_SIZE 64 +#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64) + +/* Define this to set long double type size to use in libgcc2.c, which can + not depend on target_flags. */ +#ifdef __LONG_DOUBLE_128__ +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128 +#else +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64 +#endif + +/* Work around target_flags dependency in ada/targtyps.c. */ +#define WIDEST_HARDWARE_FP_SIZE 64 #define WCHAR_TYPE "unsigned int" #define WCHAR_TYPE_SIZE 32 @@ -482,7 +504,7 @@ extern const char *alpha_tls_size_string; /* For -mtls-size= */ #define PARM_BOUNDARY 64 /* Boundary (in *bits*) on which stack pointer should be aligned. */ -#define STACK_BOUNDARY 64 +#define STACK_BOUNDARY 128 /* Allocation boundary (in *bits*) for the code of a function. */ #define FUNCTION_BOUNDARY 32 @@ -620,12 +642,12 @@ extern const char *alpha_tls_size_string; /* For -mtls-size= */ /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. On Alpha, the integer registers can hold any mode. The floating-point - registers can hold 32-bit and 64-bit integers as well, but not 16-bit - or 8-bit values. */ + registers can hold 64-bit integers as well, but not smaller values. */ #define HARD_REGNO_MODE_OK(REGNO, MODE) \ ((REGNO) >= 32 && (REGNO) <= 62 \ - ? GET_MODE_UNIT_SIZE (MODE) == 8 || GET_MODE_UNIT_SIZE (MODE) == 4 \ + ? (MODE) == SFmode || (MODE) == DFmode || (MODE) == DImode \ + || (MODE) == SCmode || (MODE) == DCmode \ : 1) /* Value is 1 if MODE is a supported vector mode. */ @@ -859,8 +881,9 @@ enum reg_class { /* Return the class of registers that cannot change mode from FROM to TO. */ -#define CANNOT_CHANGE_MODE_CLASS(FROM, TO) \ - (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) ? FLOAT_REGS : NO_REGS) +#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \ + (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \ + ? reg_classes_intersect_p (FLOAT_REGS, CLASS) : 0) /* Define the cost of moving between registers of various classes. Moving between FLOAT_REGS and anything else except float regs is expensive. @@ -1275,6 +1298,8 @@ do { \ /* Before the prologue, RA lives in $26. */ #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, 26) #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (26) +#define DWARF_ALT_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (64) +#define DWARF_ZERO_REG 31 /* Describe how we implement __builtin_eh_return. */ #define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 16 : INVALID_REGNUM) |