ccfdceb22c
pull a bunch of logic out of instcombine into instsimplify for compare
...
simplification, this handles the foldable fcmp x,x cases among many others.
llvm-svn: 86627
2009-11-09 23:55:12 +00:00
c1f19071f8
rename SimplifyCompare -> SimplifyCmpInst and split it into
...
Simplify[IF]Cmp pieces. Add some predicates to CmpInst to
determine whether a predicate is fp or int.
llvm-svn: 86624
2009-11-09 23:28:39 +00:00
cdfb80de16
fix ConstantFoldCompareInstOperands to take the LHS/RHS as
...
individual operands instead of taking a temporary array
llvm-svn: 86619
2009-11-09 23:06:58 +00:00
084a1b5581
stub out a new libanalysis "instruction simplify" interface that
...
takes decimated instructions and applies identities to them. This
is pretty minimal at this point, but I plan to pull some instcombine
logic out into these and similar routines.
llvm-svn: 86613
2009-11-09 22:57:59 +00:00
Chris Lattner