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Fix for g++ failure reported by Brendan.

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* flow.c (find_basic_blocks): Delete check for in_libcall_block when
	prev_code is a CALL_INSN.  Change check for REG_RETVAL note to
	use in_libcall_block.
	(find_basic_blocks_1): Delete check for in_libcall_block when prev_code
	is a CALL_INSN.  If CALL_INSN and in_libcall_block, then change code
	to INSN.

From-SVN: r22529
This commit is contained in:
Jim Wilson 1998-09-21 13:59:47 +00:00 committed by Jim Wilson
parent 0cfdd854df
commit d06c63899f
2 changed files with 19 additions and 5 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
* flow.c (find_basic_blocks): Delete check for in_libcall_block when
prev_code is a CALL_INSN. Change check for REG_RETVAL note to
use in_libcall_block.
(find_basic_blocks_1): Delete check for in_libcall_block when prev_code
is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
to INSN.
Mon Sep 21 14:02:23 1998
* i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix

15
gcc/flow.c
View File

@ -331,12 +331,13 @@ find_basic_blocks (f, nregs, file, live_reachable_p)
|| (GET_RTX_CLASS (code) == 'i'
&& (prev_code == JUMP_INSN
|| (prev_code == CALL_INSN
&& (nonlocal_label_list != 0 || eh_region)
&& ! in_libcall_block)
&& (nonlocal_label_list != 0 || eh_region))
|| prev_code == BARRIER)))
i++;
if (code == CALL_INSN && find_reg_note (insn, REG_RETVAL, NULL_RTX))
/* We change the code of the CALL_INSN, so that it won't start a
new block. */
if (code == CALL_INSN && in_libcall_block)
code = INSN;
if (code != NOTE)
@ -456,8 +457,7 @@ find_basic_blocks_1 (f, nonlocal_label_list, live_reachable_p)
|| (GET_RTX_CLASS (code) == 'i'
&& (prev_code == JUMP_INSN
|| (prev_code == CALL_INSN
&& (nonlocal_label_list != 0 || eh_note)
&& ! in_libcall_block)
&& (nonlocal_label_list != 0 || eh_note))
|| prev_code == BARRIER)))
{
basic_block_head[++i] = insn;
@ -519,6 +519,11 @@ find_basic_blocks_1 (f, nonlocal_label_list, live_reachable_p)
NOTE_BLOCK_NUMBER (XEXP (eh_note, 0));
BLOCK_NUM (insn) = i;
/* We change the code of the CALL_INSN, so that it won't start a
new block. */
if (code == CALL_INSN && in_libcall_block)
code = INSN;
if (code != NOTE)
prev_code = code;