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(tcnd_divide_by_zero... 

(tcnd_divide_by_zero, divsi3, udivsi3): Allow the
	explicit trap for divide by zero to resume execution along the
	expected path.

From-SVN: r2706
This commit is contained in:
Tom Wood 1992-11-06 11:47:37 +00:00
parent f95fd40ed5
commit 1192c651c6
1 changed files with 5 additions and 15 deletions
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20
gcc/config/m88k/m88k.md
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@ -28,7 +28,7 @@
(define_expand "m88k_sccs_id"
[(match_operand:SI 0 "" "")]
""
"{ static char sccs_id[] = \"@(#)m88k.md 2.2.13.5 10/19/92 10:13:13\";
"{ static char sccs_id[] = \"@(#)m88k.md 2.3.2.2 11/05/92 09:03:51\";
FAIL; }")
;; Attribute specifications
@ -2377,7 +2377,6 @@
emit_insn (gen_cmpsi (operands[0], const0_rtx));
emit_jump_insn (gen_bne (operands[1]));
emit_insn (gen_trap_divide_by_zero ());
emit_barrier ();
DONE;
}")
@ -2406,7 +2405,6 @@
if (op2 == const0_rtx)
{
emit_insn (gen_trap_divide_by_zero ());
emit_barrier ();
emit_insn (gen_dummy (op0));
DONE;
}
@ -2448,11 +2446,8 @@
if (TARGET_CHECK_ZERO_DIV)
emit_insn (gen_tcnd_divide_by_zero (op2, join_label));
else
{
emit_jump_insn (gen_jump (join_label));
emit_barrier ();
}
emit_jump_insn (gen_jump (join_label));
emit_barrier ();
emit_label (label1); /* constant / positive */
emit_move_insn (op0, gen_rtx (UDIV, SImode, op1, op2));
@ -2517,13 +2512,9 @@
emit_jump_insn (gen_bne (join_label));
emit_label (label4);
emit_insn (gen_trap_divide_by_zero ());
emit_barrier ();
}
else
{
emit_jump_insn (gen_jump (join_label));
emit_barrier ();
}
emit_jump_insn (gen_jump (join_label));
emit_barrier ();
emit_label (label2); /* pos.-or-0 / neg.-or-0 */
emit_move_insn (op0, gen_rtx (UDIV, SImode, op1, neg_op2));
@ -2578,7 +2569,6 @@
if (op2 == const0_rtx)
{
emit_insn (gen_trap_divide_by_zero ());
emit_barrier ();
emit_insn (gen_dummy (operands[0]));
DONE;
}