1 ; RUN: opt < %s -instcombine -S > %t1.ll 2 ; RUN: grep udiv %t1.ll | count 2 3 ; RUN: grep zext %t1.ll | count 2 4 ; PR2274 5 6 ; The udiv instructions shouldn't be optimized away, and the 7 ; sext instructions should be optimized to zext. 8 9 define i64 @bar(i32 %x, i32 %g) nounwind { 10 %y = lshr i32 %x, 30 11 %r = udiv i32 %y, %g 12 %z = sext i32 %r to i64 13 ret i64 %z 14 } 15 define i64 @qux(i32 %x, i32 %v) nounwind { 16 %y = lshr i32 %x, 31 17 %r = udiv i32 %y, %v 18 %z = sext i32 %r to i64 19 ret i64 %z 20 } 21
