1; Test use of RISBG vs RISBGN on zEC12. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 | FileCheck %s 4 5; On zEC12, we generally prefer RISBGN. 6define i64 @f1(i64 %a, i64 %b) { 7; CHECK-LABEL: f1: 8; CHECK: risbgn %r2, %r3, 60, 62, 0 9; CHECK: br %r14 10 %anda = and i64 %a, -15 11 %andb = and i64 %b, 14 12 %or = or i64 %anda, %andb 13 ret i64 %or 14} 15 16; But we may fall back to RISBG if we can use the condition code. 17define i64 @f2(i64 %a, i64 %b, i32* %c) { 18; CHECK-LABEL: f2: 19; CHECK: risbg %r2, %r3, 60, 62, 0 20; CHECK-NEXT: ipm 21; CHECK: br %r14 22 %anda = and i64 %a, -15 23 %andb = and i64 %b, 14 24 %or = or i64 %anda, %andb 25 %cmp = icmp sgt i64 %or, 0 26 %conv = zext i1 %cmp to i32 27 store i32 %conv, i32* %c, align 4 28 ret i64 %or 29} 30 31