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Diffstat (limited to 'test/Transforms/InstCombine/add-shrink.ll')
| -rw-r--r-- | test/Transforms/InstCombine/add-shrink.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/add-shrink.ll b/test/Transforms/InstCombine/add-shrink.ll new file mode 100644 index 0000000..cc57478 --- /dev/null +++ b/test/Transforms/InstCombine/add-shrink.ll @@ -0,0 +1,14 @@ +; RUN: opt < %s -instcombine -S | grep {add nsw i32} +; RUN: opt < %s -instcombine -S | grep sext | count 1 + +; Should only have one sext and the add should be i32 instead of i64. + +define i64 @test1(i32 %A) { + %B = ashr i32 %A, 7 ; <i32> [#uses=1] + %C = ashr i32 %A, 9 ; <i32> [#uses=1] + %D = sext i32 %B to i64 ; <i64> [#uses=1] + %E = sext i32 %C to i64 ; <i64> [#uses=1] + %F = add i64 %D, %E ; <i64> [#uses=1] + ret i64 %F +} + |