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re PR target/12070 (ICE converting between double and long double with -msoft-float) 

PR target/12070
	* calls.c (emit_library_call_value_1): Fix saving of BLKmode arguments.

	PR opt/12082
	* cfgcleanup.c (try_simplify_condjump): Avoid unreachable code warning.

From-SVN: r71147
This commit is contained in:
Jan Hubicka 2003-09-06 23:50:20 +02:00 committed by Jan Hubicka
parent 0761f342c5
commit 9778f2f8b5
3 changed files with 60 additions and 6 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
Sat Sep 6 23:49:13 CEST 2003 Jan Hubicka <jh@suse.cz>
PR target/12070
* calls.c (emit_library_call_value_1): Fix saving of BLKmode arguments.
PR opt/12082
* cfgcleanup.c (try_simplify_condjump): Avoid unreachable code warning.
2003-09-06 Gabriel Dos Reis <gdr@integrable-solutions.net>
* diagnostic.c (announce_function): Move to toplev.c.

42
gcc/calls.c
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@ -3071,10 +3071,19 @@ expand_call (tree exp, rtx target, int ignore)
if (pass && (flags & ECF_LIBCALL_BLOCK))
{
rtx insns;
rtx insn;
bool failed = valreg == 0 || GET_CODE (valreg) == PARALLEL;
if (valreg == 0 || GET_CODE (valreg) == PARALLEL)
insns = get_insns ();
/* Expansion of block moves possibly introduced a loop that may
not appear inside libcall block. */
for (insn = insns; insn; insn = NEXT_INSN (insn))
if (GET_CODE (insn) == JUMP_INSN)
failed = true;
if (failed)
{
insns = get_insns ();
end_sequence ();
emit_insn (insns);
}
@ -3095,7 +3104,6 @@ expand_call (tree exp, rtx target, int ignore)
args[i].initial_value, note);
note = gen_rtx_EXPR_LIST (VOIDmode, funexp, note);
insns = get_insns ();
end_sequence ();
if (flags & ECF_PURE)
@ -4008,9 +4016,25 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
argvec[argnum].locate.offset.constant);
rtx stack_area
= gen_rtx_MEM (save_mode, memory_address (save_mode, adr));
argvec[argnum].save_area = gen_reg_rtx (save_mode);
emit_move_insn (argvec[argnum].save_area, stack_area);
if (save_mode == BLKmode)
{
argvec[argnum].save_area
= assign_stack_temp (BLKmode,
argvec[argnum].locate.size.constant,
0);
emit_block_move (validize_mem (argvec[argnum].save_area),
stack_area,
GEN_INT (argvec[argnum].locate.size.constant),
BLOCK_OP_CALL_PARM);
}
else
{
argvec[argnum].save_area = gen_reg_rtx (save_mode);
emit_move_insn (argvec[argnum].save_area, stack_area);
}
}
}
@ -4229,7 +4253,13 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
rtx stack_area = gen_rtx_MEM (save_mode,
memory_address (save_mode, adr));
emit_move_insn (stack_area, argvec[count].save_area);
if (save_mode == BLKmode)
emit_block_move (stack_area,
validize_mem (argvec[count].save_area),
GEN_INT (argvec[count].locate.size.constant),
BLOCK_OP_CALL_PARM);
else
emit_move_insn (stack_area, argvec[count].save_area);
}
highest_outgoing_arg_in_use = initial_highest_arg_in_use;

16
gcc/cfgcleanup.c
View File

@ -118,6 +118,8 @@ try_simplify_condjump (basic_block cbranch_block)
basic_block jump_block, jump_dest_block, cbranch_dest_block;
edge cbranch_jump_edge, cbranch_fallthru_edge;
rtx cbranch_insn;
rtx insn, next;
rtx end;
/* Verify that there are exactly two successors. */
if (!cbranch_block->succ
@ -170,6 +172,20 @@ try_simplify_condjump (basic_block cbranch_block)
cbranch_fallthru_edge->flags &= ~EDGE_FALLTHRU;
update_br_prob_note (cbranch_block);
end = jump_block->end;
/* Deleting a block may produce unreachable code warning even when we are
not deleting anything live. Supress it by moving all the line number
notes out of the block. */
for (insn = jump_block->head; insn != NEXT_INSN (jump_block->end);
insn = next)
{
next = NEXT_INSN (insn);
if (GET_CODE (insn) == NOTE && NOTE_LINE_NUMBER (insn) > 0)
{
reorder_insns (insn, insn, end);
end = insn;
}
}
/* Delete the block with the unconditional jump, and clean up the mess. */
delete_block (jump_block);
tidy_fallthru_edge (cbranch_jump_edge, cbranch_block, cbranch_dest_block);