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df-scan.c (df_get_entry_block_def_set): Add STACK_POINTER_REGNUM regardless of epilogue_completed.

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gcc/
	* df-scan.c (df_get_entry_block_def_set): Add STACK_POINTER_REGNUM
	regardless of epilogue_completed.

From-SVN: r139998
This commit is contained in:
Richard Sandiford 2008-09-04 19:16:14 +00:00 • committed by Richard Sandiford
parent d555161825
commit 1d4894358c
2 changed files with 8 additions and 3 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2008-09-04 Richard Sandiford <rdsandiford@googlemail.com>
* df-scan.c (df_get_entry_block_def_set): Add STACK_POINTER_REGNUM
regardless of epilogue_completed.
2008-09-04 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/37359

6
gcc/df-scan.c
View file

@ -3681,6 +3681,9 @@ df_get_entry_block_def_set (bitmap entry_block_defs)
#endif
}
/* The always important stack pointer. */
bitmap_set_bit (entry_block_defs, STACK_POINTER_REGNUM);
/* Once the prologue has been generated, all of these registers
should just show up in the first regular block. */
if (HAVE_prologue && epilogue_completed)
@ -3693,9 +3696,6 @@ df_get_entry_block_def_set (bitmap entry_block_defs)
}
else
{
/* The always important stack pointer. */
bitmap_set_bit (entry_block_defs, STACK_POINTER_REGNUM);
/* If STATIC_CHAIN_INCOMING_REGNUM == STATIC_CHAIN_REGNUM
only STATIC_CHAIN_REGNUM is defined. If they are different,
we only care about the STATIC_CHAIN_INCOMING_REGNUM. */