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| author | Joel Jones <joel_k_jones@apple.com> | 2012-12-11 16:10:25 +0000 |
|---|---|---|
| committer | Joel Jones <joel_k_jones@apple.com> | 2012-12-11 16:10:25 +0000 |
| commit | 24e440d04520dd6687085e8508045a84c73d7afd (patch) | |
| tree | 290e0449cce6b41202fcbe23babd50d7c272d143 /llvm/lib/CodeGen/PeepholeOptimizer.cpp | |
| parent | ed4325f7ac254fabe3c30f83db9e822a9b8f095f (diff) | |
| download | bcm5719-llvm-24e440d04520dd6687085e8508045a84c73d7afd.tar.gz bcm5719-llvm-24e440d04520dd6687085e8508045a84c73d7afd.zip | |
Add comment for load folding
llvm-svn: 169880
Diffstat (limited to 'llvm/lib/CodeGen/PeepholeOptimizer.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/PeepholeOptimizer.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/PeepholeOptimizer.cpp b/llvm/lib/CodeGen/PeepholeOptimizer.cpp index cc07d471508..0900ba31342 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" |
