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1; Test 32-bit atomic XORs.2;3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s4 5; Check XORs of a variable.6define i32 @f1(i32 %dummy, ptr %src, i32 %b) {7; CHECK-LABEL: f1:8; CHECK: l %r2, 0(%r3)9; CHECK: [[LABEL:\.[^ ]*]]:10; CHECK: lr %r0, %r211; CHECK: xr %r0, %r412; CHECK: cs %r2, %r0, 0(%r3)13; CHECK: jl [[LABEL]]14; CHECK: br %r1415 %res = atomicrmw xor ptr %src, i32 %b seq_cst16 ret i32 %res17}18 19; Check the lowest useful constant.20define i32 @f2(i32 %dummy, ptr %src) {21; CHECK-LABEL: f2:22; CHECK: l %r2, 0(%r3)23; CHECK: [[LABEL:\.[^ ]*]]:24; CHECK: lr %r0, %r225; CHECK: xilf %r0, 126; CHECK: cs %r2, %r0, 0(%r3)27; CHECK: jl [[LABEL]]28; CHECK: br %r1429 %res = atomicrmw xor ptr %src, i32 1 seq_cst30 ret i32 %res31}32 33; Check an arbitrary constant.34define i32 @f3(i32 %dummy, ptr %src) {35; CHECK-LABEL: f3:36; CHECK: xilf %r0, 300000000037; CHECK: br %r1438 %res = atomicrmw xor ptr %src, i32 3000000000 seq_cst39 ret i32 %res40}41 42; Check bitwise negation.43define i32 @f4(i32 %dummy, ptr %src) {44; CHECK-LABEL: f4:45; CHECK: xilf %r0, 429496729546; CHECK: br %r1447 %res = atomicrmw xor ptr %src, i32 -1 seq_cst48 ret i32 %res49}50