diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/emit-rtl.c | 28 | ||||
| -rw-r--r-- | gcc/function.c | 2 | ||||
| -rw-r--r-- | gcc/rtl.h | 1 |
4 files changed, 36 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f5888be3c6a..42db6357cc1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2003-02-28 Josef Zlomek <zlomekj@suse.cz> + + * emit-rtl.c (set_reg_attrs_for_parm): New function. + * rtl.h (set_reg_attrs_for_parm): New exported function. + * function.c (assign_parms): Use set_reg_attrs_for_parm instead of + set_reg_attrs_from_mem. + 2003-02-27 Roger Sayle <roger@eyesopen.com> Zack Weinberg <zack@codesourcery.com> diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index aefa8740716..28c75ee2896 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -1,6 +1,6 @@ /* Emit RTL for the GNU C-Compiler expander. Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of GCC. @@ -931,6 +931,32 @@ set_reg_attrs_from_mem (reg, mem) = get_reg_attrs (MEM_EXPR (mem), INTVAL (MEM_OFFSET (mem))); } +/* Set the register attributes for registers contained in PARM_RTX. + Use needed values from memory attributes of MEM. */ + +void +set_reg_attrs_for_parm (parm_rtx, mem) + rtx parm_rtx; + rtx mem; +{ + if (GET_CODE (parm_rtx) == REG) + set_reg_attrs_from_mem (parm_rtx, mem); + else if (GET_CODE (parm_rtx) == PARALLEL) + { + /* Check for a NULL entry in the first slot, used to indicate that the + parameter goes both on the stack and in registers. */ + int i = XEXP (XVECEXP (parm_rtx, 0, 0), 0) ? 0 : 1; + for (; i < XVECLEN (parm_rtx, 0); i++) + { + rtx x = XVECEXP (parm_rtx, 0, i); + if (GET_CODE (XEXP (x, 0)) == REG) + REG_ATTRS (XEXP (x, 0)) + = get_reg_attrs (MEM_EXPR (mem), + INTVAL (XEXP (x, 1))); + } + } +} + /* Assign the RTX X to declaration T. */ void set_decl_rtl (t, x) diff --git a/gcc/function.c b/gcc/function.c index a47ab3eac0d..851dd246ee9 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -4460,7 +4460,7 @@ assign_parms (fndecl) /* Set also REG_ATTRS if parameter was passed in a register. */ if (entry_parm) - set_reg_attrs_from_mem (entry_parm, stack_parm); + set_reg_attrs_for_parm (entry_parm, stack_parm); } /* If this parameter was passed both in registers and in the stack, diff --git a/gcc/rtl.h b/gcc/rtl.h index ff6c5810232..89f554da724 100644 --- a/gcc/rtl.h +++ b/gcc/rtl.h @@ -1378,6 +1378,7 @@ extern rtx gen_int_mode PARAMS ((HOST_WIDE_INT, extern rtx emit_copy_of_insn_after PARAMS ((rtx, rtx)); extern void set_reg_attrs_from_mem PARAMS ((rtx, rtx)); extern void set_mem_attrs_from_reg PARAMS ((rtx, rtx)); +extern void set_reg_attrs_for_parm PARAMS ((rtx, rtx)); /* In rtl.c */ extern rtx rtx_alloc PARAMS ((RTX_CODE)); |