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1; RUN: llc -verify-machineinstrs -mcpu=pwr7 -O2 -relocation-model=pic < %s | FileCheck %s2 3target datalayout = "e-m:e-i64:64-n32:64"4target triple = "powerpc64le-unknown-linux-gnu"5 6; Test back-to-back stores of TLS variables to ensure call sequences no7; longer overlap.8 9@__once_callable = external thread_local global ptr10@__once_call = external thread_local global ptr11 12define i64 @call_once(i64 %flag, ptr %ptr) {13entry:14 %var = alloca ptr, align 815 store ptr %ptr, ptr %var, align 816 store ptr %var, ptr @__once_callable, align 817 store ptr @__once_call_impl, ptr @__once_call, align 818 ret i64 %flag19}20 21; CHECK-LABEL: call_once:22; CHECK: addi 3, {{[0-9]+}}, __once_callable@got@tlsgd@l23; CHECK: bl __tls_get_addr(__once_callable@tlsgd)24; CHECK-NEXT: nop25; FIXME: We could check here for 'std {{[0-9]+}}, 0(3)', but that no longer26; works because, with new scheduling freedom, we create a copy of R3 based on the27; initial scheduling, but don't coalesce it again after we move the instructions28; so that the copy is no longer necessary.29; CHECK: addi 3, {{[0-9]+}}, __once_call@got@tlsgd@l30; CHECK: bl __tls_get_addr(__once_call@tlsgd)31; CHECK-NEXT: nop32; CHECK: std {{[0-9]+}}, 0(3)33; CHECK: mr 3, 3034 35declare void @__once_call_impl()36