diff options
Diffstat (limited to 'contrib/gcc/expr.h')
| -rw-r--r-- | contrib/gcc/expr.h | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/contrib/gcc/expr.h b/contrib/gcc/expr.h index fb7c61d..c38cd99 100644 --- a/contrib/gcc/expr.h +++ b/contrib/gcc/expr.h @@ -1,6 +1,6 @@ /* Definitions for code generation pass of GNU compiler. Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of GCC. @@ -44,13 +44,19 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #define QUEUED_NEXT(P) XEXP (P, 4) /* This is the 4th arg to `expand_expr'. + EXPAND_STACK_PARM means we are possibly expanding a call param onto + the stack. Choosing a value of 2 isn't special; It just allows + some code optimization in store_expr. EXPAND_SUM means it is ok to return a PLUS rtx or MULT rtx. EXPAND_INITIALIZER is similar but also record any labels on forced_labels. EXPAND_CONST_ADDRESS means it is ok to return a MEM whose address is a constant that is not a legitimate address. - EXPAND_WRITE means we are only going to write to the resulting rtx. */ -enum expand_modifier {EXPAND_NORMAL, EXPAND_SUM, EXPAND_CONST_ADDRESS, - EXPAND_INITIALIZER, EXPAND_WRITE}; + EXPAND_WRITE means we are only going to write to the resulting rtx. + EXPAND_MEMORY means we are interested in a memory result, even if + the memory is constant and we could have propagated a constant value. */ +enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM = 2, EXPAND_SUM, + EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE, + EXPAND_MEMORY}; /* Prevent the compiler from deferring stack pops. See inhibit_defer_pop for more information. */ @@ -132,7 +138,7 @@ enum direction {none, upward, downward}; /* Value has this type. */ /* Supply a default definition for FUNCTION_ARG_BOUNDARY. Normally, we let FUNCTION_ARG_PADDING, which also pads the length, handle any needed alignment. */ - + #ifndef FUNCTION_ARG_BOUNDARY #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) PARM_BOUNDARY #endif @@ -289,7 +295,7 @@ extern rtx gen_move_insn PARAMS ((rtx, rtx)); extern int have_add2_insn PARAMS ((rtx, rtx)); extern int have_sub2_insn PARAMS ((rtx, rtx)); -/* Emit a pair of rtl insns to compare two rtx's and to jump +/* Emit a pair of rtl insns to compare two rtx's and to jump to a label if the comparison is true. */ extern void emit_cmp_and_jump_insns PARAMS ((rtx, rtx, enum rtx_code, rtx, enum machine_mode, int, rtx)); @@ -303,7 +309,7 @@ rtx emit_conditional_move PARAMS ((rtx, enum rtx_code, rtx, rtx, enum machine_mode, rtx, rtx, enum machine_mode, int)); -/* Return non-zero if the conditional move is supported. */ +/* Return nonzero if the conditional move is supported. */ int can_conditionally_move_p PARAMS ((enum machine_mode mode)); #endif @@ -341,7 +347,7 @@ extern rtx gen_cond_trap PARAMS ((enum rtx_code, rtx, rtx, rtx)); /* Functions from builtins.c: */ extern rtx expand_builtin PARAMS ((tree, rtx, rtx, enum machine_mode, int)); -extern void std_expand_builtin_va_start PARAMS ((int, tree, rtx)); +extern void std_expand_builtin_va_start PARAMS ((tree, rtx)); extern rtx std_expand_builtin_va_arg PARAMS ((tree, tree)); extern rtx expand_builtin_va_arg PARAMS ((tree, tree)); extern void default_init_builtins PARAMS ((void)); @@ -369,10 +375,6 @@ extern void init_expr_once PARAMS ((void)); /* This is run at the start of compiling a function. */ extern void init_expr PARAMS ((void)); -/* This function is run once to initialize stor-layout.c. */ - -extern void init_stor_layout_once PARAMS ((void)); - /* This is run at the end of compiling a function. */ extern void finish_expr_for_function PARAMS ((void)); @@ -398,7 +400,15 @@ extern rtx convert_modes PARAMS ((enum machine_mode, enum machine_mode, rtx, int)); /* Emit code to move a block Y to a block X. */ -extern rtx emit_block_move PARAMS ((rtx, rtx, rtx)); + +enum block_op_methods +{ + BLOCK_OP_NORMAL, + BLOCK_OP_NO_LIBCALL, + BLOCK_OP_CALL_PARM +}; + +extern rtx emit_block_move PARAMS ((rtx, rtx, rtx, enum block_op_methods)); /* Copy all or part of a value X into registers starting at REGNO. The number of registers to be filled is NREGS. */ @@ -408,10 +418,17 @@ extern void move_block_to_reg PARAMS ((int, rtx, int, enum machine_mode)); The number of registers to be filled is NREGS. */ extern void move_block_from_reg PARAMS ((int, rtx, int, int)); +/* Generate a non-consecutive group of registers represented by a PARALLEL. */ +extern rtx gen_group_rtx PARAMS ((rtx)); + /* Load a BLKmode value into non-consecutive registers represented by a PARALLEL. */ extern void emit_group_load PARAMS ((rtx, rtx, int)); +/* Move a non-consecutive group of registers represented by a PARALLEL into + a non-consecutive group of registers represented by a PARALLEL. */ +extern void emit_group_move PARAMS ((rtx, rtx)); + /* Store a BLKmode value from non-consecutive registers represented by a PARALLEL. */ extern void emit_group_store PARAMS ((rtx, rtx, int)); @@ -435,7 +452,7 @@ extern void use_group_regs PARAMS ((rtx *, rtx)); If OBJECT has BLKmode, SIZE is its length in bytes. */ extern rtx clear_storage PARAMS ((rtx, rtx)); -/* Return non-zero if it is desirable to store LEN bytes generated by +/* Return nonzero if it is desirable to store LEN bytes generated by CONSTFUN with several move instructions by store_by_pieces function. CONSTFUNDATA is a pointer which will be passed as argument in every CONSTFUN call. @@ -740,7 +757,7 @@ extern void emit_stack_restore PARAMS ((enum save_level, rtx, rtx)); says how many bytes. */ extern rtx allocate_dynamic_stack_space PARAMS ((rtx, rtx, int)); -/* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive. +/* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive. FIRST is a constant and size is a Pmode RTX. These are offsets from the current stack pointer. STACK_GROWS_DOWNWARD says whether to add or subtract from the stack. If SIZE is constant, this is done @@ -771,6 +788,7 @@ extern rtx extract_bit_field PARAMS ((rtx, unsigned HOST_WIDE_INT, enum machine_mode, enum machine_mode, HOST_WIDE_INT)); extern rtx expand_mult PARAMS ((enum machine_mode, rtx, rtx, rtx, int)); +extern bool const_mult_add_overflow_p PARAMS ((rtx, rtx, rtx, enum machine_mode, int)); extern rtx expand_mult_add PARAMS ((rtx, rtx, rtx, rtx,enum machine_mode, int)); extern rtx expand_mult_highpart_adjust PARAMS ((enum machine_mode, rtx, rtx, rtx, rtx, int)); @@ -802,3 +820,5 @@ extern void do_jump_by_parts_greater_rtx PARAMS ((enum machine_mode, extern void mark_seen_cases PARAMS ((tree, unsigned char *, HOST_WIDE_INT, int)); #endif + +extern int vector_mode_valid_p PARAMS ((enum machine_mode)); |
