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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7283 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-07-23 21:41:57 +00:00
parent eca0c5c379
commit 2cd9196e87
1 changed files with 9 additions and 0 deletions
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9
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -12,6 +12,15 @@
//
// This is a simple worklist driven algorithm.
//
// This pass guarantees that the following cannonicalizations are performed on
// the program:
// 1. If a binary operator has a constant operand, it is moved to the RHS
// 2. Logical operators with constant operands are always grouped so that
// 'or's are performed first, then 'and's, then 'xor's.
// 3. SetCC instructions are converted from <,>,<=,>= to ==,!= if possible
// 4. All SetCC instructions on boolean values are replaced with logical ops
// N. This list is incomplete
//
//===----------------------------------------------------------------------===//
#include "llvm/Transforms/Scalar.h"