Instead, check all uses.
This fixes bug: ScalarRepl/2003-09-12-IncorrectPromote.ll
This also fixes the miscompilation of Ptrdist/bc

llvm-svn: 8493

  - Run mem2reg promotion first
  - Only rerun passes if the previous thing changed something

llvm-svn: 8490

Implement InstCombine/mul.ll:test9

llvm-svn: 8488

llvm-svn: 8473

the combination more effective

llvm-svn: 8471

llvm-svn: 8469

llvm-svn: 8467

llvm-svn: 8462

llvm-svn: 8431

be the canonical form for the word

llvm-svn: 8430

llvm-svn: 8428

llvm-svn: 8425

llvm-svn: 8408

llvm-svn: 8399

llvm-svn: 8276

llvm-svn: 8243

llvm-svn: 8242

llvm-svn: 8152

llvm-svn: 8087

llvm-svn: 8078

llvm-svn: 8030

llvm-svn: 7967

llvm-svn: 7944

llvm-svn: 7839

   (A <setcc1> B) logicalop (A <setcc2> B)  -> (A <setcc3> B) or true or false

Where setcc[123] is one of the 6 setcc instructions, and logicalop is one of: And, Or, Xor

llvm-svn: 7828

llvm-svn: 7825

llvm-svn: 7823

llvm-svn: 7813

llvm-svn: 7807

llvm-svn: 7806

of a power of two are represented as a shift.

llvm-svn: 7803

This implements InstCombine/shift.ll:test14*

llvm-svn: 7793

llvm-svn: 7792

llvm-svn: 7787

llvm-svn: 7783

llvm-svn: 7782

llvm-svn: 7614

llvm-svn: 7612

llvm-svn: 7492

llvm-svn: 7295