to match MOVL (movss, movsd, etc.). Don't forget to commute it back and try
unpck* and shufp* if that doesn't pan out.

llvm-svn: 31186

llvm-svn: 31185

llvm-svn: 31184

llvm-svn: 31183

llvm-svn: 31180

llvm-svn: 31179

llvm-svn: 31171

llvm-svn: 31170

bison'ing correctly.

llvm-svn: 31169

visitBr to just call visitSwitchCase, eliminating duplicate logic.

llvm-svn: 31167

Rename LHSBB/RHSBB to TrueBB/FalseBB.  Allow the RHS value to be null,
in which case the LHS is treated as a bool.

llvm-svn: 31166

isel changes happened months ago.

llvm-svn: 31164

llvm-svn: 31162

llvm-svn: 31161

llvm-svn: 31160

llvm-svn: 31159

llvm-svn: 31158

due to branchfolding

llvm-svn: 31157

llvm-svn: 31156

llvm-svn: 31155

llvm-svn: 31153

llvm-svn: 31152

llvm-svn: 31151

a place more useful.  In particular, if we can put them in a place where code
will be able to fall into it, do so.  Otherwise, put it in a place it can fall
through into a successor.  Otherwise, if preventing a fallthrough, move to the
end of the function, out of the way.

This deletes several hundred unconditional branches from spass.

llvm-svn: 31149

llvm-svn: 31148

passes llvm-gcc bootstrap.

llvm-svn: 31146

llvm-svn: 31145

llvm-svn: 31140

llvm-svn: 31138

llvm-svn: 31137

llvm-svn: 31136

llvm-svn: 31135

Prolangs-C/agrep and SCCP/2006-10-23-IPSCCP-Crash.ll

llvm-svn: 31132

        movl 32(%esp), %eax
        cmpl $1, %eax
        je LBB1_1       #bb
LBB1_4: #entry
        cmpl $2, %eax
        je LBB1_2       #bb2
        jmp LBB1_3      #UnifiedReturnBlock
LBB1_1: #bb

notice that we would miss the fall through and emit this instead:

        movl 32(%esp), %eax
        cmpl $2, %eax
        je LBB1_2       #bb2
LBB1_4: #entry
        cmpl $1, %eax
        jne LBB1_3      #UnifiedReturnBlock
LBB1_1: #bb

llvm-svn: 31130

llvm-svn: 31129

llvm-svn: 31128

property is added by running through the list of uses of the value and
adding resolved properties to the property set.

llvm-svn: 31126

llvm-svn: 31125

llvm-svn: 31124

llvm-svn: 31123