From 24e440d04520dd6687085e8508045a84c73d7afd Mon Sep 17 00:00:00 2001 From: Joel Jones Date: Tue, 11 Dec 2012 16:10:25 +0000 Subject: [PATCH] Add comment for load folding llvm-svn: 169880 --- llvm/lib/CodeGen/PeepholeOptimizer.cpp | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/llvm/lib/CodeGen/PeepholeOptimizer.cpp b/llvm/lib/CodeGen/PeepholeOptimizer.cpp index cc07d47..0900ba3 100644 --- a/llvm/lib/CodeGen/PeepholeOptimizer.cpp +++ b/llvm/lib/CodeGen/PeepholeOptimizer.cpp @@ -49,6 +49,11 @@ // v1 = bitcast v0 // = v0 // +// - Optimize Loads: +// +// Loads that can be folded into a later instruction. A load is foldable +// if it loads to virtual registers and the virtual register defined has +// a single use. //===----------------------------------------------------------------------===// #define DEBUG_TYPE "peephole-opt" -- 2.7.4