1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=armv7-apple-darwin -verify-machineinstrs | FileCheck %s -check-prefix=ARM 2*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=thumbv7-apple-darwin -verify-machineinstrs | FileCheck %s -check-prefix=T2 3*9880d681SAndroid Build Coastguard Worker; rdar://8964854 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workerdefine i8 @t(i8* %a, i8 %b, i8 %c) nounwind { 6*9880d681SAndroid Build Coastguard Worker; ARM-LABEL: t: 7*9880d681SAndroid Build Coastguard Worker; ARM: ldrexb 8*9880d681SAndroid Build Coastguard Worker; ARM: strexb 9*9880d681SAndroid Build Coastguard Worker; ARM: clrex 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Worker; T2-LABEL: t: 12*9880d681SAndroid Build Coastguard Worker; T2: strexb 13*9880d681SAndroid Build Coastguard Worker; T2: ldrexb 14*9880d681SAndroid Build Coastguard Worker; T2: clrex 15*9880d681SAndroid Build Coastguard Worker %tmp0 = cmpxchg i8* %a, i8 %b, i8 %c monotonic monotonic 16*9880d681SAndroid Build Coastguard Worker %tmp1 = extractvalue { i8, i1 } %tmp0, 0 17*9880d681SAndroid Build Coastguard Worker ret i8 %tmp1 18*9880d681SAndroid Build Coastguard Worker} 19