llvm/test/CodeGen/Thumb/frame-chain-reserved-fp.ll

   1 ; RUN: not llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=all                                2>&1 | FileCheck %s --check-prefix=R7-RESERVED --check-prefix=R11-FREE
   2 ; RUN: not llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=all      -mattr=+aapcs-frame-chain 2>&1 | FileCheck %s --check-prefix=R7-FREE     --check-prefix=R11-RESERVED
   3 ; RUN: not llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=non-leaf                           2>&1 | FileCheck %s --check-prefix=R7-RESERVED --check-prefix=R11-FREE
   4 ; RUN: not llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=non-leaf -mattr=+aapcs-frame-chain 2>&1 | FileCheck %s --check-prefix=R7-FREE     --check-prefix=R11-RESERVED
   5 ; RUN:     llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=none                               2>&1 | FileCheck %s --check-prefix=R7-FREE     --check-prefix=R11-FREE
   6 ; RUN:     llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=none     -mattr=+aapcs-frame-chain 2>&1 | FileCheck %s --check-prefix=R7-FREE     --check-prefix=R11-FREE
   7 ; RUN: not llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=reserved                           2>&1 | FileCheck %s --check-prefix=R7-RESERVED --check-prefix=R11-FREE
   8 ; RUN: not llc -mtriple thumbv6m-arm-none-eabi -filetype asm -o - %s -frame-pointer=reserved -mattr=+aapcs-frame-chain 2>&1 | FileCheck %s --check-prefix=R7-FREE     --check-prefix=R11-RESERVED
   9
  10 declare void @leaf(i32 %input)
  11
  12 define void @reserved_r7(i32 %input) {
  13 ; R7-RESERVED: error: write to reserved register 'R7'
  14 ; R7-FREE-NOT: error: write to reserved register 'R7'
  15   %1 = call i32 asm sideeffect "mov $0, $1", "={r7},r"(i32 %input)
  16   ret void
  17 }
  18
  19 define void @reserved_r11(i32 %input) {
  20 ; R11-RESERVED: error: write to reserved register 'R11'
  21 ; R11-FREE-NOT: error: write to reserved register 'R11'
  22   %1 = call i32 asm sideeffect "mov $0, $1", "={r11},r"(i32 %input)
  23   ret void
  24 }