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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194495 91177308-0d34-0410-b5e6-96231b3b80d8
GraphViz CFGPrinter: wrap long lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194496 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify operand folding when rematerializing a load.

We already know how to fold a reload from a frameindex without
analyzing the load instruction. Generalize this to handle any
frameindex load. This streamlines the logic for rematerializing loads
from stack arguments. As a side effect, it allows stackmaps to record
a stack argument location without spilling it.

Verified no effect on codegen for llvm test-suite.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194497 91177308-0d34-0410-b5e6-96231b3b80d8