[ARM] ldr pc,=expression should be allowed in Thumb2
This change allows the pc to be used as a destination register for the
pseudo instruction LDR pc,=expression . The pseudo instruction must not be
transformed into a MOV, but it can use the Thumb2 LDR (literal) instruction
to a constant pool entry. See (A7.7.43 from ARMv7M ARM ARM).
Differential Revision: https://reviews.llvm.org/D34751
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307640 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed