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| author | Chris Lattner <sabre@nondot.org> | 2011-01-03 03:46:34 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-01-03 03:46:34 +0000 |
| commit | ef87fc2e0a19c3da55c596244e71e2ad03ae4b43 (patch) | |
| tree | 0e8aaaede98f8e1e91fab26666912bd140899ae2 /test/Transforms/EarlyCSE | |
| parent | 85db61066a370f5d6e2d3c667eb5fa02493593c7 (diff) | |
| download | llvm-ef87fc2e0a19c3da55c596244e71e2ad03ae4b43.tar.gz llvm-ef87fc2e0a19c3da55c596244e71e2ad03ae4b43.tar.bz2 llvm-ef87fc2e0a19c3da55c596244e71e2ad03ae4b43.tar.xz | |
now that loads are in their own table, we can implement
store->load forwarding. This allows EarlyCSE to zap 600 more
loads from 176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122732 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/EarlyCSE')
| -rw-r--r-- | test/Transforms/EarlyCSE/basic.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/Transforms/EarlyCSE/basic.ll b/test/Transforms/EarlyCSE/basic.ll index 6d772599b3..5599a1c0b7 100644 --- a/test/Transforms/EarlyCSE/basic.ll +++ b/test/Transforms/EarlyCSE/basic.ll @@ -87,3 +87,12 @@ define i32 @test5(i32 *%P) { ret i32 %Diff ; CHECK: ret i32 0 } + +;; Trivial Store->load forwarding +; CHECK: @test6 +define i32 @test6(i32 *%P) { + store i32 42, i32* %P + %V1 = load i32* %P + ret i32 %V1 + ; CHECK: ret i32 42 +} |