llvm/test/CodeGen/SystemZ/Large/branch-range-13.py

   1 # Test that inline assembly get the right size value so that a branch across
   2 # a block containing them gets relaxed.
   3
   4 # RUN: %python %s | llc -mtriple=s390x-linux-gnu -mcpu=z196 -enable-post-misched=false \
   5 # RUN:    | FileCheck %s
   6
   7 # Construct:
   8 #
   9 # entry:
  10 #   branch to block
  11 #
  12 # block:
  13 #   sequence of call asm
  14 #   unconditional branch to block
  15 #
  16 # exit:
  17 #   ret void
  18
  19 # CHECK-LABEL: f1
  20 # CHECK: jg
  21 # CHECK-NEXT: .Lfunc_end0:
  22
  23 from __future__ import print_function
  24
  25 num = 11000
  26
  27 print('define void @f1() {')
  28 print('entry:')
  29 print('  br label %block')
  30 print('')
  31 print('block:')
  32
  33 for i in range(num):
  34     print('  tail call i64 asm "lang\\09$0,$2,$1\\0A", "=d,=*Q,d,*Q"(i32* undef, i32 undef, i32* undef)')
  35
  36 print('  br label %block')
  37
  38 print('')
  39 print('exit:')
  40 print('  ret void')
  41 print('}')