diff options
Diffstat (limited to 'test')
-rw-r--r-- | test/Analysis/GlobalsModRef/purecse.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/Analysis/GlobalsModRef/purecse.ll b/test/Analysis/GlobalsModRef/purecse.ll new file mode 100644 index 0000000000..17e6a0a521 --- /dev/null +++ b/test/Analysis/GlobalsModRef/purecse.ll @@ -0,0 +1,15 @@ +; Test that pure functions are cse'd away + +; RUN: llvm-as < %s | opt -globalsmodref-aa -load-vn -gcse -instcombine -adce| llvm-dis | not grep call + +int %pure(int %X) { + %Y = add int %X, 1 + ret int %Y +} + +int %test(int %X) { + %A = call int %pure(int %X) + %B = call int %pure(int %X) + %C = sub int %A, %B + ret int %C +} |