ARM Compiler 5.06 Cannot Handle __irq

Below code for Cortex-R5 CPU,

__irq void Foo( void )

With ARM 5.05, it compiles OK as

PUSH     {r0-r12,lr}
...
POP      {r0-r12,lr}
SUBS     pc,lr,#4

With ARM 5.06, it compiles  NOT OK as

PUSH     {r4-r12,lr}
...
POP      {r4-r12,pc}

Hey!!  When IRQ handler ends, the PC return address should be "lr -4 not the "lr"!

ARM, please fix this problem!