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| -rw-r--r-- | test/Transforms/InstCombine/bittest.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/bittest.ll b/test/Transforms/InstCombine/bittest.ll new file mode 100644 index 0000000000..db386f39d9 --- /dev/null +++ b/test/Transforms/InstCombine/bittest.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | opt -instcombine -simplifycfg -disable-output && +; RUN: llvm-as < %s | opt -instcombine -simplifycfg | llvm-dis | not grep 'call void %abort' + +%b_rec.0 = external global int + +void %_Z12h000007_testv(uint *%P) { +entry: + %tmp.2 = load int* %b_rec.0 ; <int> [#uses=1] + %tmp.9 = or int %tmp.2, -989855744 ; <int> [#uses=2] + %tmp.16 = and int %tmp.9, -805306369 ; <int> [#uses=2] + %tmp.17 = and int %tmp.9, -973078529 ; <int> [#uses=1] + store int %tmp.17, int* %b_rec.0 + %tmp.17.shrunk = cast int %tmp.16 to uint ; <uint> [#uses=1] + %tmp.22 = and uint %tmp.17.shrunk, 3221225472 ; <uint> [#uses=1] + %tmp.23 = seteq uint %tmp.22, 3221225472 ; <bool> [#uses=1] + br bool %tmp.23, label %endif.0, label %then.0 + +then.0: ; preds = %entry + tail call void %abort( ) + unreachable + +endif.0: ; preds = %entry + %tmp.17.shrunk2 = cast int %tmp.16 to uint ; <uint> [#uses=1] + %tmp.27.mask = and uint %tmp.17.shrunk2, 100663295 ; <uint> [#uses=1] + store uint %tmp.27.mask, uint* %P + ret void +} + +declare void %abort() |