tree: Mark PAREN_EXPR and VEC_DUPLICATE_EXPR as non-trapping [PR117234]

While looking to fix a possible trapping issue in PHI-OPT's factor,
I noticed that some tree codes could be marked as trapping even
though they don't have a possibility to trap. In the case of PAREN_EXPR,
it is basically a nop except when it comes to association across it so
it can't trap.
In the case of VEC_DUPLICATE_EXPR, it is similar to a CONSTRUCTOR, so it
can't trap.

This fixes those 2 issues and adds 4 testcases, 2 which are specific to aarch64
since the only way to get a VEC_DUPLICATE_EXPR is to use intrinsics currently.

Build and tested for aarch64-linux-gnu.

	PR tree-optimization/117234

gcc/ChangeLog:

	* tree-eh.cc (operation_could_trap_helper_p): Treat
	PAREN_EXPR and VEC_DUPLICATE_EXPR like constructing
	expressions.

gcc/testsuite/ChangeLog:

	* g++.dg/eh/noncall-fp-1.C: New test.
	* g++.target/aarch64/sve/noncall-eh-fp-1.C: New test.
	* gcc.dg/tree-ssa/trapping-1.c: New test.
	* gcc.target/aarch64/sve/trapping-1.c: New test.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

0 files changed, 0 insertions, 0 deletions