test/CodeGen/ARM/subtarget-features-long-calls.ll

; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - | FileCheck -check-prefix=NO-OPTION %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=+long-calls | FileCheck -check-prefix=LONGCALL %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -mattr=-long-calls | FileCheck -check-prefix=NO-LONGCALL %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 | FileCheck -check-prefix=NO-OPTION %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=+long-calls | FileCheck -check-prefix=LONGCALL %s
; RUN: llc -march thumb -mcpu=cortex-a8 -relocation-model=static %s -o - -O0 -mattr=-long-calls | FileCheck -check-prefix=NO-LONGCALL %s

; NO-OPTION-LABEL: {{_?}}caller0
; NO-OPTION: ldr [[R0:r[0-9]+]], [[L0:.*]] 
; NO-OPTION: blx [[R0]]
; NO-OPTION: [[L0]]:
; NO-OPTION: .long {{_?}}callee0

; LONGCALL-LABEL: {{_?}}caller0
; LONGCALL: ldr [[R0:r[0-9]+]], [[L0:.*]]
; LONGCALL: blx [[R0]]
; LONGCALL: [[L0]]:
; LONGCALL: .long {{_?}}callee0

; NO-LONGCALL-LABEL: {{_?}}caller0
; NO-LONGCALL: bl {{_?}}callee0

define i32 @caller0() #0 {
entry:
  tail call void @callee0()
  ret i32 0
}

; NO-OPTION-LABEL: {{_?}}caller1
; NO-OPTION: bl {{_?}}callee0

; LONGCALL-LABEL: {{_?}}caller1
; LONGCALL: ldr [[R0:r[0-9]+]], [[L0:.*]]
; LONGCALL: blx [[R0]]
; LONGCALL: [[L0]]:
; LONGCALL: .long {{_?}}callee0

; NO-LONGCALL-LABEL: {{_?}}caller1
; NO-LONGCALL: bl {{_?}}callee0

define i32 @caller1() {
entry:
  tail call void @callee0()
  ret i32 0
}

declare void @callee0()

attributes #0 = { "target-features"="+long-calls" }