1 ; RUN: llc < %s -O3 -march=x86-64 |FileCheck %s 2 define i64 @foo(i1 %z, i64 %data1, i64 %data2) 3 { 4 ; If constant 4294967294 is hoisted to a variable, then we won't be able to use 5 ; the implicit zero extension of 32-bit operations to handle the AND. 6 entry: 7 %val1 = and i64 %data1, 4294967294 8 br i1 %z, label %End, label %L_val2 9 10 ; CHECK: andl $-2, {{.*}} 11 ; CHECK: andl $-2, {{.*}} 12 L_val2: 13 %val2 = and i64 %data2, 4294967294 14 br label %End 15 16 End: 17 %p1 = phi i64 [%val1,%entry], [%val2,%L_val2] 18 ret i64 %p1 19 } 20
