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Peter Smith
6253ba4276
[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
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