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