1; Test LOCR and LOCGR. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s 4 5; Test LOCR. 6define i32 @f1(i32 %a, i32 %b, i32 %limit) { 7; CHECK-LABEL: f1: 8; CHECK: clfi %r4, 42 9; CHECK: locrhe %r2, %r3 10; CHECK: br %r14 11 %cond = icmp ult i32 %limit, 42 12 %res = select i1 %cond, i32 %a, i32 %b 13 ret i32 %res 14} 15 16; Test LOCGR. 17define i64 @f2(i64 %a, i64 %b, i64 %limit) { 18; CHECK-LABEL: f2: 19; CHECK: clgfi %r4, 42 20; CHECK: locgrhe %r2, %r3 21; CHECK: br %r14 22 %cond = icmp ult i64 %limit, 42 23 %res = select i1 %cond, i64 %a, i64 %b 24 ret i64 %res 25} 26 27; Test LOCR in a case that could use COMPARE AND BRANCH. We prefer using 28; LOCR if possible. 29define i32 @f3(i32 %a, i32 %b, i32 %limit) { 30; CHECK-LABEL: f3: 31; CHECK: chi %r4, 42 32; CHECK: locrlh %r2, %r3 33; CHECK: br %r14 34 %cond = icmp eq i32 %limit, 42 35 %res = select i1 %cond, i32 %a, i32 %b 36 ret i32 %res 37} 38 39; ...and again for LOCGR. 40define i64 @f4(i64 %a, i64 %b, i64 %limit) { 41; CHECK-LABEL: f4: 42; CHECK: cghi %r4, 42 43; CHECK: locgrlh %r2, %r3 44; CHECK: br %r14 45 %cond = icmp eq i64 %limit, 42 46 %res = select i1 %cond, i64 %a, i64 %b 47 ret i64 %res 48} 49