1; Test incrementing up to a maximum value. Expect a compare-and-swap loop. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5define i64 @f1(ptr %src, i64 %b) { 6; CHECK-LABEL: f1: 7; CHECK: lgr [[SRC:%r[0-9]+]], %r2 8; CHECK: lg [[RI:%r[0-9]+]], 0(%r2) 9; CHECK: j [[L2:\.L.+]] 10; CHECK: [[L1:\.L.+]]: 11; CHECK: csg [[RI]], [[RO:%r[0-9]+]], 0([[SRC]]) 12; CHECK: je [[L3:\.L.+]] 13; CHECK: [[L2]]: 14; CHECK: lghi [[RO]], 0 15; CHECK: clgrjhe [[RI]], %r3, [[L1]] 16; CHECK: la [[RO]], 1([[RI]]) 17; CHECK: j [[L1]] 18; CHECK: [[L3]]: 19; CHECK: br %r14 20 %res = atomicrmw uinc_wrap ptr %src, i64 %b seq_cst 21 ret i64 %res 22} 23