1; Test atomic float addition. Expect a compare-and-swap loop. 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: le [[F:%f[0-9]+]], 0(%r2) 8; CHECK: [[L:\.L.+]]: 9; CHECK: lgdr [[RI:%r[0-9]+]], [[F]] 10; CHECK: aebr [[F]], %f0 11; CHECK: lgdr [[RO:%r[0-9]+]], [[F]] 12; CHECK: srlg [[RO]], [[RO]], 32 13; CHECK: srlg [[RI]], [[RI]], 32 14; CHECK: cs [[RI]], [[RO]], 0(%r2) 15; CHECK: sllg [[RI]], [[RI]], 32 16; CHECK: ldgr [[F]], [[RI]] 17; CHECK: jl [[L]] 18; CHECK: ler %f0, [[F]] 19; CHECK: br %r14 20 %res = atomicrmw fadd ptr %src, float %b seq_cst 21 ret float %res 22} 23