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| -rw-r--r-- | test/Analysis/BasicAA/tailcall-modref.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Analysis/BasicAA/tailcall-modref.ll b/test/Analysis/BasicAA/tailcall-modref.ll new file mode 100644 index 0000000000..c58ad7ffcd --- /dev/null +++ b/test/Analysis/BasicAA/tailcall-modref.ll @@ -0,0 +1,16 @@ +; RUN: llvm-as < %s | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | grep 'ret int 0' +declare void %foo(int*) +declare void %bar() + +int %test() { + %A = alloca int + call void %foo(int* %A) + + %X = load int* %A + tail call void %bar() ;; Cannot modify *%A because it's on the stack. + %Y = load int* %A + %Z = sub int %X, %Y + ret int %Z +} + + |