Richard Sandiford b86a83488e [SystemZ] Add conditional store patterns ...

Add pseudo conditional store instructions, so that we use:

    branch foo:
    store
foo:

instead of:

    load
    branch foo:
    move
foo:
    store

z196 has real 32-bit and 64-bit conditional stores, but we don't use
any z196 instructions yet.

llvm-svn: 185065

2013-06-27 09:27:40 +00:00

95 KiB

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