1. Make the arguments const like the other ConstantFold* functions.
2. Clean up evaluateFCmpRelation so it makes sense for floating point.
3. Implement the use of evaluateFCmpRelation to fold floating point CEs
4. Shorten a variable name so more things fit on one line.
5. Fix various comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32759 91177308-0d34-0410-b5e6-96231b3b80d8
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
pass managers. Otherwise, stale available analysis info, from the managers not
yet run, may cause pass manager to take wrong turn.
This fixes CBE test failures reported by nightly tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32726 91177308-0d34-0410-b5e6-96231b3b80d8
values regardless of the signedness of the constant's type, it is okay to
always make the AsmWriter.cpp print constant ints as signed values. The
AsmParser will automatically handle things like: uint -1 as a result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32686 91177308-0d34-0410-b5e6-96231b3b80d8
s/ModulePassManager/MPPassManager/g
s/FunctionPassManagerImpl_New/FunctionPassManagerImpl/g
s/PassManagerImpl_New/PassManagerImpl/g
Introduce FPPassManager to manage function passes and
BBPassManagers.
Now FunctionPassManagerImpl is an implementation class
used by externally visible FunctionPassManager to manage
FPPassManagers.
Module pass manager (MPPassManager) now manages FPPassManagers
and ModulePasses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32679 91177308-0d34-0410-b5e6-96231b3b80d8
ConstRules. Remove the casting rules from ConstRules and subclasses. This
cleans up ConstantFolding significantly. Passes all tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32671 91177308-0d34-0410-b5e6-96231b3b80d8
still check the validity of signed values an overload to isValueValidForType
was added to allow passing in an int64_t to check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32663 91177308-0d34-0410-b5e6-96231b3b80d8
ConstantInt doesn't care about the sign of the type it represents. It only
cares about the bitwidth so there is no need to make the sign of the type
match the SExt or ZExt constant expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32646 91177308-0d34-0410-b5e6-96231b3b80d8
Register pass has the its last user, otherwise sometimes no one will claim
LastUse.
Handle transferred last uses from child pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32589 91177308-0d34-0410-b5e6-96231b3b80d8
continue to use old pass manager at the moment. To use new manager
remove #define USE_OLD_PASSMANAGER 1 from Pass.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32525 91177308-0d34-0410-b5e6-96231b3b80d8
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
