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; RUN: opt < %s -instcombine -S | FileCheck %s
define i32 @t1(i16 zeroext %x, i32 %y) nounwind {
entry:
; CHECK: t1
; CHECK-NOT: sdiv
; CHECK: lshr i32 %conv
%conv = zext i16 %x to i32
%s = shl i32 2, %y
%d = sdiv i32 %conv, %s
ret i32 %d
}
; rdar://11721329
define i64 @t2(i64 %x, i32 %y) nounwind {
; CHECK: t2
; CHECK-NOT: udiv
; CHECK: lshr i64 %x
%1 = shl i32 1, %y
%2 = zext i32 %1 to i64
%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
}
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