|  | ; RUN: llc -mtriple thumbv7-windows-coff -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-COFF | 
|  | ; RUN: llc -mtriple thumbv7-elf -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-OTHER | 
|  | ; RUN: llc -mtriple thumbv7-macho -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-OTHER | 
|  |  | 
|  | declare i8* @f() | 
|  | declare extern_weak i8* @g(i8*) | 
|  |  | 
|  | ; weak symbol resolution occurs statically in PE/COFF, ensure that we permit | 
|  | ; tail calls on weak externals when targeting a COFF environment. | 
|  | define void @test() { | 
|  | %call = tail call i8* @f() | 
|  | %call1 = tail call i8* @g(i8* %call) | 
|  | ret void | 
|  | } | 
|  |  | 
|  | ; CHECK-COFF: b g | 
|  | ; CHECK-OTHER: bl {{_?}}g | 
|  |  |