Tim Northover 72360d201c ARM: add pseudo-instructions for lit-pool global materialisation ...

These are used by MachO only at the moment, and (much like the existing
MOVW/MOVT set) work around the fact that the labels used in the actual
instructions often contain PC-dependent components, which means that repeatedly
materialising the same global can't be CSEed.

With small modifications, it could be adapted to how ELF finds the address of
_GLOBAL_OFFSET_TABLE_, which would give similar benefits in PIC mode there.

llvm-svn: 196090

2013-12-02 10:35:41 +00:00

2.1 KiB

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