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(
  35         '  tail call i64 asm "lang\\09$0,$2,$1\\0A", "=d,=*Q,d,*Q"(i32* elementtype(i32) undef, i32 undef, i32* elementtype(i32) undef)'
  36     )
  37
  38 print("  br label %block")
  39
  40 print("")
  41 print("exit:")
  42 print("  ret void")
  43 print("}")