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1; Test atomic float addition. Expect a compare-and-swap loop.2;3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s4 5define float @f1(ptr %src, float %b) {6; CHECK-LABEL: f1:7; CHECK: le [[F:%f[0-9]+]], 0(%r2)8; CHECK: [[L:\.L.+]]:9; CHECK: ler [[COPY_F:%f[0-9]+]], [[F]]10; CHECK-NEXT: aebr [[F]], %f011; CHECK-NEXT: lgdr [[RO:%r[0-9]+]], [[F]]12; CHECK: srlg [[RO]], [[RO]], 3213; CHECK: lgdr [[RI:%r[0-9]+]], [[COPY_F]]14; CHECK: srlg [[RI]], [[RI]], 3215; CHECK: cs [[RI]], [[RO]], 0(%r2)16; CHECK: sllg [[RO]], [[RI]], 3217; CHECK: ldgr [[F]], [[RO]]18; CHECK: jl [[L]]19; CHECK: ler %f0, [[F]]20; CHECK: br %r1421 %res = atomicrmw fadd ptr %src, float %b seq_cst22 ret float %res23}24