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| author | Michael Gottesman <mgottesman@apple.com> | 2013-07-08 02:13:47 +0000 |
|---|---|---|
| committer | Michael Gottesman <mgottesman@apple.com> | 2013-07-08 02:13:47 +0000 |
| commit | 2abe4eeaf99c8eb20c8448677aa1be6ee5b7d3c7 (patch) | |
| tree | e64eb54d45ac97726cb8abcb9252eadb29d3a30a | |
| parent | d56e7e198d858439c884dbd909ee58d15742d5be (diff) | |
| download | llvm-2abe4eeaf99c8eb20c8448677aa1be6ee5b7d3c7.tar.gz llvm-2abe4eeaf99c8eb20c8448677aa1be6ee5b7d3c7.tar.bz2 llvm-2abe4eeaf99c8eb20c8448677aa1be6ee5b7d3c7.tar.xz | |
[objc-arc] Committed test for r185770 as per dblaikie's suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185782 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/Transforms/ObjCARC/gvn.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/Transforms/ObjCARC/gvn.ll b/test/Transforms/ObjCARC/gvn.ll index 8d9b1bb84b..1c55ee5c8a 100644 --- a/test/Transforms/ObjCARC/gvn.ll +++ b/test/Transforms/ObjCARC/gvn.ll @@ -3,6 +3,8 @@ @x = common global i8* null, align 8 declare i8* @objc_retain(i8*) +declare i32 @objc_sync_enter(i8*) +declare i32 @objc_sync_exit(i8*) ; GVN should be able to eliminate this redundant load, with ARC-specific ; alias analysis. @@ -20,3 +22,20 @@ entry: %t = load i8** @x ret i8* %t } + +; GVN should not be able to eliminate this redundant load, with ARC-specific +; alias analysis. + +; CHECK: define i8* @test1 +; CHECK: load +; CHECK: load +; CHECK: ret i8* %t +; CHECK: } +define i8* @test1(i32 %n) nounwind { +entry: + %s = load i8** @x + %0 = call i32 @objc_sync_enter(i8* %s) + %t = load i8** @x + %1 = call i32 @objc_sync_exit(i8* %s) + ret i8* %t +} |