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3330e08888
place to help bring up the PowerPC back end on Darwin. This code is no longer serves any purpose now that the AsmPrinter does the right thing all the time printing GlobalValues. --Cruft. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18267 91177308-0d34-0410-b5e6-96231b3b80d8
TODO: * poor switch statement codegen * load/store to alloca'd array or struct. * implement not-R0 register GPR class * implement scheduling info * implement do-loop pass * implement do-loop -> bdnz transform * implement powerpc-64 for darwin * implement powerpc-64 for aix * use stfiwx in float->int * should hint to the branch select pass that it doesn't need to print the second unconditional branch, so we don't end up with things like: b .LBBl42__2E_expand_function_8_674 ; loopentry.24 b .LBBl42__2E_expand_function_8_42 ; NewDefault b .LBBl42__2E_expand_function_8_42 ; NewDefault Currently failing tests that should pass: * MultiSource |- Applications | `- hbd: miscompilation