equip st/ld to/from stack slot with memoperand
More verbose error messages
Using llvm_unreachable to have a stacktrace as well
Added hack to support bitcode linking after inlining with -g
Iterate only over unique CUs for DWARF emitting, keep duplicate CUs for lookup
Added -nostdlib option to llvm-link, lookup system paths after -L paths
Removed rsub
Execute stackcache analysis before post-ra scheduler
Removed pnor
Removed ALUu format and zext/sext instructions
Added code to undo combining of int ABS pattern
patmos: minor extension of graph traits

* pass the graph itself to the isNodeHidden callback
* subgraphs for machine-level call graphs
* update the users of isNodeHidden
patmos: extend stack cache analysis

* compute max stack occupancy for SCCs in the call graph (recursion)
* construct and solve ILPs to do that
* simple interface to supply LP user annotations to limit recursion depth
* simple data-flow analysis to find functions with at least one call-free path
patmos: fix missing comma
setJumpIsExpensive in ISelLowering

- because we prefer setcc over control flow
Using numbers for special registers by default, renamed SZ to S0
Fixed warnings
Added alias $ss for $s5
Throw an error if clobber register name is not recognized
Parse inline-asm constraints with $ in front of register names