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Diffstat (limited to 'test/Transforms/InstCombine/div-shift.ll')
-rw-r--r-- | test/Transforms/InstCombine/div-shift.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/div-shift.ll b/test/Transforms/InstCombine/div-shift.ll index a07f3ea..e0372eb 100644 --- a/test/Transforms/InstCombine/div-shift.ll +++ b/test/Transforms/InstCombine/div-shift.ll @@ -21,3 +21,17 @@ define i64 @t2(i64 %x, i32 %y) nounwind { %3 = udiv i64 %x, %2 ret i64 %3 } + +; PR13250 +define i64 @t3(i64 %x, i32 %y) nounwind { +; CHECK: t3 +; CHECK-NOT: udiv +; CHECK-NEXT: %1 = add i32 %y, 2 +; CHECK-NEXT: %2 = zext i32 %1 to i64 +; CHECK-NEXT: %3 = lshr i64 %x, %2 +; CHECK-NEXT: ret i64 %3 + %1 = shl i32 4, %y + %2 = zext i32 %1 to i64 + %3 = udiv i64 %x, %2 + ret i64 %3 +} |