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| author | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
|---|---|---|
| committer | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
| commit | f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc (patch) | |
| tree | ebb79ea1ee5e3bc1fdf38541a811a8b804f0679a /test/Analysis/BasicAA/global-size.ll | |
| download | external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.zip external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.tar.gz external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.tar.bz2 | |
It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/BasicAA/global-size.ll')
| -rw-r--r-- | test/Analysis/BasicAA/global-size.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Analysis/BasicAA/global-size.ll b/test/Analysis/BasicAA/global-size.ll new file mode 100644 index 0000000..5e75249 --- /dev/null +++ b/test/Analysis/BasicAA/global-size.ll @@ -0,0 +1,17 @@ +; A store or load cannot alias a global if the accessed amount is larger then +; the global. + +; RUN: llvm-upgrade < %s | llvm-as | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | not grep load + +%B = global short 8 + +implementation + +short %test(int *%P) { + %X = load short* %B + store int 7, int* %P + %Y = load short* %B + %Z = sub short %Y, %X + ret short %Z +} + |