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authorSegher Boessenkool <segher@kernel.crashing.org>2014-05-08 00:00:58 +0200
committerSegher Boessenkool <segher@gcc.gnu.org>2014-05-08 00:00:58 +0200
commitd839f53b7dfd86250420bce15382c98cbd43b4ec (patch)
treecd8a170e4a1bf065792be21e8461f7608f25a897 /boehm-gc
parentd3b4df0b173c3ad5f1e8f5d9f6a5df3518322129 (diff)
downloadgcc-d839f53b7dfd86250420bce15382c98cbd43b4ec.tar.gz
rs6000: New attributes for load/store: "sign_extend", "update" and "indexed"
The new attributes replace the instruction types *_ext*, *_u, *_ux. This simplifies all code that does not care about the addressing modes, putting the burden on the code that does care (mostly the scheduling descriptions for certain CPUs). It fixes a few minor bugs in the process. The "update" and "indexed" attributes are automatic for any insn that has a MEM as operand 0 or 1. Other insns have to set it manually, if they do not like the default (which is "no"). Insns that are type load/store/fpload/fpstore but have fewer than two operands need to set it too, or the compiler will crash. There are very few of those. This tries not to change semantics anywhere; in particular, the string and multiple instructions set both "update" and "indexed" (although they are neither). From-SVN: r210190
Diffstat (limited to 'boehm-gc')
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