test/MC/AsmParser/altmacro_expression.s

   1 # RUN: llvm-mc -triple i386-linux-gnu %s | FileCheck %s
   2
   3 # Checking that the '%' was evaluated as a string first
   4 # In a fail scenario: The asmprint will print: addl $%(1+4), %eax
   5
   6 # CHECK:  addl $5, %eax
   7 .altmacro
   8 .macro percent_expr arg
   9     addl $\arg, %eax
  10 .endm
  11
  12 percent_expr %(1+4)
  13
  14
  15 # Checking that the second '%' acts as modulo operator
  16 # The altmacro percent '%' must be located before the first argument
  17 # If a percent is located in the middle of the estimated argument without any
  18 # '%' in the beginning , error will be generated.
  19 # The second percent '%' after the first altmacro percent '%' is a regular operator.
  20
  21 # CHECK:  addl $1, %eax
  22 .macro inner_percent arg
  23     addl $\arg, %eax
  24 .endm
  25
  26 inner_percent %(1%4)
  27
  28
  29 # Checking for nested macro
  30 # The first argument use is for the calling function and the second use is for the evaluation.
  31
  32 # CHECK:  addl    $1, %eax
  33 .macro macro_call_0 number
  34     addl $\number, %eax
  35 .endm
  36
  37 .macro macro_call_1 number
  38     macro_call_\number %(\number + 1)
  39 .endm
  40
  41 macro_call_1 %(1-1)
  42
  43
  44 # Checking the ability to pass a number of arguments.
  45 # The arguments can be separated by ',' or not.
  46
  47 # CHECK: label013:
  48 # CHECK:  addl $0, %eax
  49 # CHECK:  addl $1, %eax
  50 # CHECK:  addl $3, %eax
  51
  52 # CHECK: label014:
  53 # CHECK:  addl $0, %eax
  54 # CHECK:  addl $1, %eax
  55 # CHECK:  addl $4, %eax
  56
  57 .macro multi_args_macro arg1 arg2 arg3
  58     label\arg1\arg2\arg3:
  59         addl $\arg1, %eax
  60         addl $\arg2, %eax
  61         addl $\arg3, %eax
  62 .endm
  63
  64 multi_args_macro %(1+4-5) 1 %2+1
  65 multi_args_macro %(1+4-5),1,%4%10