1; RUN: llc -march=ppc64 -mcpu=pwr7 -O2 -relocation-model=pic < %s | FileCheck %s 2 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 no 7; longer overlap. 8 9@__once_callable = external thread_local global i8** 10@__once_call = external thread_local global void ()* 11 12define i64 @call_once(i64 %flag, i8* %ptr) { 13entry: 14 %var = alloca i8*, align 8 15 store i8* %ptr, i8** %var, align 8 16 store i8** %var, i8*** @__once_callable, align 8 17 store void ()* @__once_call_impl, void ()** @__once_call, align 8 18 ret i64 %flag 19} 20 21; CHECK-LABEL: call_once: 22; CHECK: addi 3, {{[0-9]+}}, __once_callable@got@tlsgd@l 23; CHECK: bl __tls_get_addr(__once_callable@tlsgd) 24; CHECK-NEXT: nop 25; FIXME: We could check here for 'std {{[0-9]+}}, 0(3)', but that no longer 26; works because, with new scheduling freedom, we create a copy of R3 based on the 27; initial scheduling, but don't coalesce it again after we move the instructions 28; so that the copy is no longer necessary. 29; CHECK: addi 3, {{[0-9]+}}, __once_call@got@tlsgd@l 30; CHECK: bl __tls_get_addr(__once_call@tlsgd) 31; CHECK-NEXT: nop 32; FIXME: We don't really need the copy here either, we could move the store up. 33; CHECK: mr [[REG1:[0-9]+]], 3 34; CHECK: std {{[0-9]+}}, 0([[REG1]]) 35 36declare void @__once_call_impl() 37