clang/test/Sema/arm-interrupt-attr.c

   1 // RUN: %clang_cc1 %s -triple arm-none-eabi -verify -fsyntax-only
   2 // RUN: %clang_cc1 %s -triple arm-none-eabi -target-feature +vfp2 -verify -fsyntax-only
   3
   4
   5 #ifdef __ARM_FP
   6 __attribute__((interrupt("IRQ"))) void float_irq(void); // expected-warning {{interrupt service routine with vfp enabled may clobber the interruptee's vfp state}}
   7 #else // !defined(__ARM_FP)
   8 __attribute__((interrupt("irq"))) void foo1(void) {} // expected-warning {{'interrupt' attribute argument not supported: irq}}
   9 __attribute__((interrupt(IRQ))) void foo(void) {} // expected-error {{'interrupt' attribute requires a string}}
  10 __attribute__((interrupt("IRQ", 1))) void foo2(void) {} // expected-error {{'interrupt' attribute takes no more than 1 argument}}
  11 __attribute__((interrupt("IRQ"))) void foo3(void) {}
  12 __attribute__((interrupt("FIQ"))) void foo4(void) {}
  13 __attribute__((interrupt("SWI"))) void foo5(void) {}
  14 __attribute__((interrupt("ABORT"))) void foo6(void) {}
  15 __attribute__((interrupt("UNDEF"))) void foo7(void) {}
  16 __attribute__((interrupt)) void foo8(void) {}
  17 __attribute__((interrupt())) void foo9(void) {}
  18 __attribute__((interrupt(""))) void foo10(void) {}
  19
  20 __attribute__((interrupt("IRQ"))) void callee(void) {}
  21
  22 void caller(void)
  23 {
  24     callee(); // expected-error {{interrupt service routine cannot be called directly}}
  25 }
  26 #endif // __ARM_FP