; RUN: llc < %s -O3 -march=x86-64 |FileCheck %s define i64 @foo(i1 %z, i192* %p, i192* %q) { ; If const 128 is hoisted to a variable, then in basic block L_val2 we would ; have %lshr2 = lshr i192 %data2, %const, and the definition of %const would ; be in another basic block. As a result, a very inefficient code might be ; produced. Here we check that this doesn't occur. entry: %data1 = load i192* %p, align 8 %lshr1 = lshr i192 %data1, 128 %val1 = trunc i192 %lshr1 to i64 br i1 %z, label %End, label %L_val2 ; CHECK: movq 16(%rdx), %rax ; CHECK-NEXT: retq L_val2: %data2 = load i192* %q, align 8 %lshr2 = lshr i192 %data2, 128 %val2 = trunc i192 %lshr2 to i64 br label %End End: %p1 = phi i64 [%val1,%entry], [%val2,%L_val2] ret i64 %p1 }