gas/testsuite/gas/iq2000/q10load-hazards.exp

   1 # Test for warnings when producing load hazards (instructions that
   2 # reference the target of load one stage further down the pipeline.
   3
   4 # Run GAS and check that it emits the desired warning for the test case.
   5 # Arguments:
   6 #   file -- name of the test case to assemble.
   7 #   testname -- a string describing the test.
   8 #   warnpattern -- a regular expression, suitable for use by the Tcl
   9 #     regexp command, to decide if the warning string was emitted by
  10 #     the assembler to stderr.
  11
  12 proc iq2000_warning_test { file testname {warnpattern ""} } {
  13     global comp_output
  14
  15     gas_run $file "-m10" ">/dev/null"
  16     verbose "output was $comp_output" 2
  17
  18     if {$warnpattern == ""} {
  19         if {$comp_output == ""} { pass $testname } else { fail $testname }
  20         return
  21     }
  22
  23     if {[regexp "Warning: $warnpattern" $comp_output]} {
  24         pass $testname
  25     } else {
  26         fail $testname
  27     }
  28 }
  29
  30 if [istarget iq2000*-*-*] {
  31     foreach file [glob -nocomplain -- $srcdir/$subdir/q10hazard*.s] {
  32         set file [file tail $file]
  33         switch -- $file {
  34             "q10hazard0.s" {
  35                 set warnpattern "operand references R10 of previous load"
  36             }
  37             "q10hazard1.s" {
  38                 set warnpattern "operand references R1 of previous load"
  39             }
  40             "q10hazard2.s" {
  41                 set warnpattern "operand references R2 of previous load"
  42             }
  43             "q10hazard3.s" {
  44                 set warnpattern "operand references R31 of previous load"
  45             }
  46             "q10hazard4.s" {
  47                 set warnpattern "operand references R10 of previous load"
  48             }
  49             "q10hazard5.s" {
  50                 set warnpattern "operand references R1 of previous load"
  51             }
  52             default {
  53                 error "no expected result specified for $file"
  54                 return
  55             }
  56         }
  57         iq2000_warning_test $file "assembler emits load hazard warning for $file" $warnpattern
  58     }
  59
  60     set testname "assembler emits no warnings when there are no load hazards"
  61     iq2000_warning_test q10nohazard.s $testname
  62 }