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rtl-optimization/106082 - preserve EH note for no non-local goto

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The following makes sure we preserve EH notes on call insns that
indicate the call doesn't perform a non-local goto when distributing
notes after combining insns.

2022-06-28  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/106082
	* combine.cc (distribute_notes): Preserve notes when
	they indicate a call doesn't perform a non-local goto.
This commit is contained in:
Richard Biener 2022-06-28 13:08:33 +02:00
parent 2dbb45d6dc
commit 0282c4acf7
1 changed files with 4 additions and 2 deletions
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6
gcc/combine.cc
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@ -14218,8 +14218,10 @@ distribute_notes (rtx notes, rtx_insn *from_insn, rtx_insn *i3, rtx_insn *i2,
gcc_assert (from_insn == i3);
/* We are making sure there is a single effective REG_EH_REGION
note and it's valid to put it on i3. */
if (!insn_could_throw_p (from_insn))
/* Throw away stra notes on insns that can never throw. */
if (!insn_could_throw_p (from_insn)
&& !(lp_nr == INT_MIN && can_nonlocal_goto (from_insn)))
/* Throw away stray notes on insns that can never throw or
make a nonlocal goto. */
;
else
{