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(alpha_builtin_saveregs): Use ptr_mode and conversions when need so

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works for both OSF and NT.

From-SVN: r9995
This commit is contained in:
Richard Kenner 1995-06-16 06:53:32 -04:00
parent d3c89e1f6c
commit 1d783d3118
1 changed files with 13 additions and 6 deletions
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19
gcc/config/alpha/alpha.c
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@ -1156,20 +1156,27 @@ alpha_builtin_saveregs (arglist)
? plus_constant (virtual_incoming_args_rtx, 6 * UNITS_PER_WORD)
: plus_constant (virtual_incoming_args_rtx, - (6 * UNITS_PER_WORD)));
addr = force_operand (addr, NULL_RTX);
/* Allocate the va_list constructor */
block = assign_stack_local (BLKmode, 2 * UNITS_PER_WORD, BITS_PER_WORD);
RTX_UNCHANGING_P (block) = 1;
RTX_UNCHANGING_P (XEXP (block, 0)) = 1;
/* Store the address of the first integer register in the
__va_base member. */
emit_move_insn (change_address (block, Pmode, XEXP (block, 0)),
force_operand (addr, NULL_RTX));
/* Store the address of the first integer register in the __base member.
Note that our offsets are correct for both 32- and 64-bit pointers
due to the alignment of the __offset field (a long). */
#ifdef POINTERS_EXTEND_UNSIGNED
addr = convert_memory_address (ptr_mode, addr);
#endif
emit_move_insn (change_address (block, ptr_mode, XEXP (block, 0)), addr);
/* Store the argsize as the __va_offset member. */
emit_move_insn (change_address (block, Pmode,
emit_move_insn (change_address (block, ptr_mode,
plus_constant (XEXP (block, 0),
UNITS_PER_WORD)),
GET_MODE_SIZE (ptr_mode))),
force_operand (argsize, NULL_RTX));
/* Return the address of the va_list constructor, but don't put it in a