1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=ppc64 -mcpu=pwr7 -O2 -relocation-model=pic < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-i64:64-n32:64" 4*9880d681SAndroid Build Coastguard Workertarget triple = "powerpc64le-unknown-linux-gnu" 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; Test back-to-back stores of TLS variables to ensure call sequences no 7*9880d681SAndroid Build Coastguard Worker; longer overlap. 8*9880d681SAndroid Build Coastguard Worker 9*9880d681SAndroid Build Coastguard Worker@__once_callable = external thread_local global i8** 10*9880d681SAndroid Build Coastguard Worker@__once_call = external thread_local global void ()* 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Workerdefine i64 @call_once(i64 %flag, i8* %ptr) { 13*9880d681SAndroid Build Coastguard Workerentry: 14*9880d681SAndroid Build Coastguard Worker %var = alloca i8*, align 8 15*9880d681SAndroid Build Coastguard Worker store i8* %ptr, i8** %var, align 8 16*9880d681SAndroid Build Coastguard Worker store i8** %var, i8*** @__once_callable, align 8 17*9880d681SAndroid Build Coastguard Worker store void ()* @__once_call_impl, void ()** @__once_call, align 8 18*9880d681SAndroid Build Coastguard Worker ret i64 %flag 19*9880d681SAndroid Build Coastguard Worker} 20*9880d681SAndroid Build Coastguard Worker 21*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: call_once: 22*9880d681SAndroid Build Coastguard Worker; CHECK: addi 3, {{[0-9]+}}, __once_callable@got@tlsgd@l 23*9880d681SAndroid Build Coastguard Worker; CHECK: bl __tls_get_addr(__once_callable@tlsgd) 24*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: nop 25*9880d681SAndroid Build Coastguard Worker; FIXME: We could check here for 'std {{[0-9]+}}, 0(3)', but that no longer 26*9880d681SAndroid Build Coastguard Worker; works because, with new scheduling freedom, we create a copy of R3 based on the 27*9880d681SAndroid Build Coastguard Worker; initial scheduling, but don't coalesce it again after we move the instructions 28*9880d681SAndroid Build Coastguard Worker; so that the copy is no longer necessary. 29*9880d681SAndroid Build Coastguard Worker; CHECK: addi 3, {{[0-9]+}}, __once_call@got@tlsgd@l 30*9880d681SAndroid Build Coastguard Worker; CHECK: bl __tls_get_addr(__once_call@tlsgd) 31*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: nop 32*9880d681SAndroid Build Coastguard Worker; FIXME: We don't really need the copy here either, we could move the store up. 33*9880d681SAndroid Build Coastguard Worker; CHECK: mr [[REG1:[0-9]+]], 3 34*9880d681SAndroid Build Coastguard Worker; CHECK: std {{[0-9]+}}, 0([[REG1]]) 35*9880d681SAndroid Build Coastguard Worker 36*9880d681SAndroid Build Coastguard Workerdeclare void @__once_call_impl() 37