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Diffstat (limited to 'test/Transforms/TailCallElim/accum_recursion.ll')
| -rw-r--r-- | test/Transforms/TailCallElim/accum_recursion.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/Transforms/TailCallElim/accum_recursion.ll b/test/Transforms/TailCallElim/accum_recursion.ll new file mode 100644 index 000000000000..e8c28ec80672 --- /dev/null +++ b/test/Transforms/TailCallElim/accum_recursion.ll @@ -0,0 +1,15 @@ +; RUN: llvm-as < %s | opt -tailcallelim | llvm-dis | not grep call + +define i32 @factorial(i32 %x) { +entry: + %tmp.1 = icmp sgt i32 %x, 0 ; <i1> [#uses=1] + br i1 %tmp.1, label %then, label %else +then: ; preds = %entry + %tmp.6 = add i32 %x, -1 ; <i32> [#uses=1] + %tmp.4 = call i32 @factorial( i32 %tmp.6 ) ; <i32> [#uses=1] + %tmp.7 = mul i32 %tmp.4, %x ; <i32> [#uses=1] + ret i32 %tmp.7 +else: ; preds = %entry + ret i32 1 +} + |