ARMv4 support is broken due to invalid BX use

[jsonn]

Bugzilla Link	34358
Resolution	FIXED
Resolved on	Sep 28, 2017 07:14
Version	trunk
OS	Linux
Blocks	#33840
CC	@zmodem,@tstellar
Fixed by commit(s)	r311921

Extended Description

Code generation for ARMv4 is broken as it creates ARMv4t BX branches. This is fixed in trunk by r311921, but still broken in 5.0.

[jsonn]

assigned to @jsonn

[zmodem]

If I understand correctly, this is not a regression from 4.0.0, so I would prefer not to take it so late in the process.

[jsonn]

Reassign for merge approval.

[TNorthover]

Looks pretty safe to me.

[tstellar]

Go ahead and merge.

[tstellar]

mentioned in issue #33840