mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-17 18:00:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

(alter_reg): Clean up setting of RTX_UNCHANGING_P when making a MEM.

Browse Source 
From-SVN: r9861
This commit is contained in:
Richard Kenner 1995-05-31 21:17:28 -04:00
parent 8eae5ed6cd
commit 02db8dd0e3
1 changed files with 11 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
gcc/reload1.c
View File

@ -2349,13 +2349,13 @@ alter_reg (i, from_reg)
/* No known place to spill from => no slot to reuse. */
x = assign_stack_local (GET_MODE (regno_reg_rtx[i]), total_size, -1);
if (BYTES_BIG_ENDIAN)
{
/* Cancel the big-endian correction done in assign_stack_local.
Get the address of the beginning of the slot.
This is so we can do a big-endian correction unconditionally
below. */
adjust = inherent_size - total_size;
}
/* Cancel the big-endian correction done in assign_stack_local.
Get the address of the beginning of the slot.
This is so we can do a big-endian correction unconditionally
below. */
adjust = inherent_size - total_size;
RTX_UNCHANGING_P (x) = RTX_UNCHANGING_P (regno_reg_rtx[i]);
}
/* Reuse a stack slot if possible. */
else if (spill_stack_slot[from_reg] != 0
@ -2389,14 +2389,10 @@ alter_reg (i, from_reg)
below. */
adjust = GET_MODE_SIZE (mode) - total_size;
if (adjust)
{
stack_slot = gen_rtx (MEM, mode_for_size (total_size
* BITS_PER_UNIT,
MODE_INT, 1),
plus_constant (XEXP (x, 0), adjust));
RTX_UNCHANGING_P (stack_slot)
= RTX_UNCHANGING_P (regno_reg_rtx[i]);
}
stack_slot = gen_rtx (MEM, mode_for_size (total_size
* BITS_PER_UNIT,
MODE_INT, 1),
plus_constant (XEXP (x, 0), adjust));
}
spill_stack_slot[from_reg] = stack_slot;
spill_stack_slot_width[from_reg] = total_size;