1; Test float atomic exchange. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5define float @f1(ptr %src, float %b) { 6; CHECK-LABEL: f1: 7; CHECK: l [[RI:%r[0-9]+]], 0(%r2) 8; CHECK: lgdr [[RO:%r[0-9]+]], %f0 9; CHECK: [[LABEL:\.[^:]*]]: 10; CHECK: cs [[RI]], [[RO]], 0(%r2) 11; CHECK: jl [[LABEL]] 12; CHECK: sllg [[RI]], [[RI]], 32 13; CHECK: ldgr %f0, [[RI]] 14; CHECK: br %r14 15 %res = atomicrmw xchg ptr %src, float %b seq_cst 16 ret float %res 17} 18