PR target/43137
	* config/arm/iterators.md (qhs_zextenddi_cond, qhs_sextenddi_cond):
	New define_mode_attrs.
	* config/arm/arm.md (zero_extendsidi2, arm_zero_extendsidi2,
	arm_exxtendsidi2, arm_extendsidi2): Delete patterns.
	(zero_extend<mode>di2, extend<mode>di2 and related splits): New.
	(thumb1_zero_extendhisi2): Remove code to handle LABEL_REFs.
	Remove pool_range attribute.
	(arm_zero_extendhisi2, arm_zero_extendhisi2_v6, arm_zero_extendqisi2,
	arm_zero_extendqisi2_v6, thumb1_zero_extendqisi2_v6): Remove
	pool_range and neg_pool_range attributes.
	* config/arm/thumb2.md (thumb2_zero_extendsidi2,
	thumb2_zero_extendhidi2, thumb2_zero_extendqidi2, thumb2_extendsidi2,
	thumb2_extendhidi2, thumb2_extendqidi2): Delete.

	PR target/43137
	* gcc.target/arm/pr43137.c: New test.

From-SVN: r163935