1; RUN: llc < %s -O3 -march=x86-64 |FileCheck %s 2define i64 @foo(i1 %z, i192* %p, i192* %q) 3{ 4; If const 128 is hoisted to a variable, then in basic block L_val2 we would 5; have %lshr2 = lshr i192 %data2, %const, and the definition of %const would 6; be in another basic block. As a result, a very inefficient code might be 7; produced. Here we check that this doesn't occur. 8entry: 9 %data1 = load i192* %p, align 8 10 %lshr1 = lshr i192 %data1, 128 11 %val1 = trunc i192 %lshr1 to i64 12 br i1 %z, label %End, label %L_val2 13 14; CHECK: movq 16(%rdx), %rax 15; CHECK-NEXT: retq 16L_val2: 17 %data2 = load i192* %q, align 8 18 %lshr2 = lshr i192 %data2, 128 19 %val2 = trunc i192 %lshr2 to i64 20 br label %End 21 22End: 23 %p1 = phi i64 [%val1,%entry], [%val2,%L_val2] 24 ret i64 %p1 25} 26