Tim Northover 4396c4b8cf ARM: don't try to hoist constant RHS out of a division. ... Divisions by a constant can be converted into multiplies which are usually cheaper, but this isn't possible if the constant gets separated (particularly in loops). Fix this by telling ConstantHoisting that the immediate in a DIV is cheap. I considered making the check generic, but neither AArch64 (strangely) nor x86 showed any benefit on the tests I had. llvm-svn: 266464		2016-04-15 18:17:18 +00:00
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AArch64
ARM
PowerPC
X86