i386: Fix atan2l argument order [PR93743]

	PR target/93743
	* config/i386/i386.md (atan2xf3): Swap operands 1 and 2.
	(atan2<mode>3): Update operand order in the call to gen_atan2xf3.

testsuite/ChangeLog:

	PR target/93743
	* gcc.target/i386/pr93743.c : New test.
4 files changed