1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple thumbv7-windows-coff -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-COFF 2*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple thumbv7-elf -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-OTHER 3*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple thumbv7-macho -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-OTHER 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workerdeclare i8* @f() 6*9880d681SAndroid Build Coastguard Workerdeclare extern_weak i8* @g(i8*) 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker; weak symbol resolution occurs statically in PE/COFF, ensure that we permit 9*9880d681SAndroid Build Coastguard Worker; tail calls on weak externals when targeting a COFF environment. 10*9880d681SAndroid Build Coastguard Workerdefine void @test() { 11*9880d681SAndroid Build Coastguard Worker %call = tail call i8* @f() 12*9880d681SAndroid Build Coastguard Worker %call1 = tail call i8* @g(i8* %call) 13*9880d681SAndroid Build Coastguard Worker ret void 14*9880d681SAndroid Build Coastguard Worker} 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Worker; CHECK-COFF: b g 17*9880d681SAndroid Build Coastguard Worker; CHECK-OTHER: bl {{_?}}g 18*9880d681SAndroid Build Coastguard Worker 19