diff options
Diffstat (limited to 'gcc/config/alpha/alpha.h')
| -rw-r--r-- | gcc/config/alpha/alpha.h | 43 |
1 files changed, 14 insertions, 29 deletions
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index dc2a1ec4439..ce644f1747c 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -186,6 +186,9 @@ extern enum alpha_fp_trap_mode alpha_fptm; #ifndef TARGET_PROFILING_NEEDS_GP #define TARGET_PROFILING_NEEDS_GP 0 #endif +#ifndef TARGET_LD_BUGGY_LDGP +#define TARGET_LD_BUGGY_LDGP 0 +#endif /* Macro to define tables used to set the flags. This is a list in braces of pairs in braces, @@ -494,7 +497,7 @@ extern const char *alpha_mlat_string; /* For -mmemory-latency= */ #define STACK_BOUNDARY 64 /* Allocation boundary (in *bits*) for the code of a function. */ -#define FUNCTION_BOUNDARY 128 +#define FUNCTION_BOUNDARY 32 /* Alignment of field after `int : 0' in a structure. */ #define EMPTY_FIELD_BOUNDARY 64 @@ -505,22 +508,6 @@ extern const char *alpha_mlat_string; /* For -mmemory-latency= */ /* A bitfield declared as `int' forces `int' alignment for the struct. */ #define PCC_BITFIELD_TYPE_MATTERS 1 -/* Align loop starts for optimal branching. - - ??? Kludge this and the next macro for the moment by not doing anything if - we don't optimize and also if we are writing ECOFF symbols to work around - a bug in DEC's assembler. */ - -#define LOOP_ALIGN(LABEL) \ - (optimize > 0 && write_symbols != SDB_DEBUG ? 4 : 0) - -/* This is how to align an instruction for optimal branching. On - Alpha we'll get better performance by aligning on an octaword - boundary. */ - -#define LABEL_ALIGN_AFTER_BARRIER(FILE) \ - (optimize > 0 && write_symbols != SDB_DEBUG ? 4 : 0) - /* No data type wants to be aligned rounder than this. */ #define BIGGEST_ALIGNMENT 128 @@ -1213,11 +1200,11 @@ extern struct alpha_compare alpha_compare; struct machine_function { - /* An offset to apply to the stack pointer when unwinding from EH. */ - struct rtx_def *eh_epilogue_sp_ofs; - /* If non-null, this rtx holds the return address for the function. */ struct rtx_def *ra_rtx; + + /* If non-null, this rtx holds a saved copy of the GP for the function. */ + struct rtx_def *gp_save_rtx; }; /* Make (or fake) .linkage entry for function call. @@ -1342,6 +1329,13 @@ 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) + +/* Describe how we implement __builtin_eh_return. */ +#define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 16 : INVALID_REGNUM) +#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 28) +#define EH_RETURN_HANDLER_RTX \ + gen_rtx_MEM (Pmode, plus_constant (stack_pointer_rtx, \ + current_function_outgoing_args_size)) /* Addressing modes, and classification of registers for them. */ @@ -1926,15 +1920,6 @@ do { \ /* Control the assembler format that we output. */ -/* We don't emit these labels, so as to avoid getting linker errors about - missing exception handling info. If we emit a gcc_compiled. label into - text, and the file has no code, then the DEC assembler gives us a zero - sized text section with no associated exception handling info. The - DEC linker sees this text section, and gives a warning saying that - the exception handling info is missing. */ -#define ASM_IDENTIFY_GCC(x) -#define ASM_IDENTIFY_LANGUAGE(x) - /* Output to assembler file text saying following lines may contain character constants, extra white space, comments, etc. */ |