* Some reorg.

llvm-svn: 25163

llvm-svn: 25162

llvm-svn: 25160

llvm-svn: 25159

llvm-svn: 25158

and SRL_PARTS.
* Fix a bug that caused *_PARTS to be custom lowered twice.

llvm-svn: 25157

llvm-svn: 25156

hasInFlag, hasOutFlag.

llvm-svn: 25155

SNDPOutFlag to DAG nodes. These properties do not belong to target specific
instructions.
* Added DAG node property SNDPOptInFlag. It's same as SNDPInFlag except it's
optional. Used by ret / call, etc.

llvm-svn: 25154

llvm-svn: 25153

llvm-svn: 25152

This fixes a "gccass" regression. The -debug-pass=Structure option now
prints all the appropriate output

llvm-svn: 25151

llvm-svn: 25150

llvm-svn: 25149

llvm-svn: 25148

llvm-svn: 25147

whenever it is live, not just when load-vn is computed initially

llvm-svn: 25146

llvm-svn: 25145

post-dominators.  This code was written/adapted by Daniel Berlin!

llvm-svn: 25144

llvm-svn: 25143

"added the asserts and casts, fixed the comments and started the break
down of the larger methods.  A few more patches and the breakdown
should be complete."

llvm-svn: 25142

llvm-svn: 25141

llvm-svn: 25140

llvm-svn: 25139

llvm-svn: 25138

llvm-svn: 25137

* Fixed a load folding bug.

llvm-svn: 25136

llvm-svn: 25135

llvm-svn: 25134

llvm-svn: 25133

llvm-svn: 25132

llvm-svn: 25131

llvm-svn: 25130

llvm-svn: 25129

the shifts.

This allows us to fold this (which is the 'integer add a constant' sequence
from cozmic's scheme compmiler):

int %x(uint %anf-temporary776) {
        %anf-temporary777 = shr uint %anf-temporary776, ubyte 1
        %anf-temporary800 = cast uint %anf-temporary777 to int
        %anf-temporary804 = shl int %anf-temporary800, ubyte 1
        %anf-temporary805 = add int %anf-temporary804, -2
        %anf-temporary806 = or int %anf-temporary805, 1
        ret int %anf-temporary806
}

into this:

int %x(uint %anf-temporary776) {
        %anf-temporary776 = cast uint %anf-temporary776 to int
        %anf-temporary776.mask1 = add int %anf-temporary776, -2
        %anf-temporary805 = or int %anf-temporary776.mask1, 1
        ret int %anf-temporary805
}

note that instcombine already knew how to eliminate the AND that the two
shifts fold into.  This is tested by InstCombine/shift.ll:test26

-Chris

llvm-svn: 25128

llvm-svn: 25127

llvm-svn: 25126

functionality changes.

llvm-svn: 25125

llvm-svn: 25124

llvm-svn: 25123