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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 | 8293b7b8b1c4372095f86097da33f6cc63330289 (patch) | |
| tree | 8bfe1ae7dab806c9c002ca3af72ca721224254ff /lib | |
| parent | e4b3e9445f0bbd4ecf2c5da6add13ec2423fe2ef (diff) | |
| download | external_llvm-8293b7b8b1c4372095f86097da33f6cc63330289.zip external_llvm-8293b7b8b1c4372095f86097da33f6cc63330289.tar.gz external_llvm-8293b7b8b1c4372095f86097da33f6cc63330289.tar.bz2 | |
Add comment for load folding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169880 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/PeepholeOptimizer.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp index cc07d47..0900ba3 100644 --- a/lib/CodeGen/PeepholeOptimizer.cpp +++ b/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" |