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

   1 // RUN: %clang_cc1 %s -triple arm-apple-darwin  -target-feature +vfp2 -verify -fsyntax-only
   2 // RUN: %clang_cc1 %s -triple thumb-apple-darwin  -target-feature +vfp3 -verify -fsyntax-only
   3 // RUN: %clang_cc1 %s -triple armeb-none-eabi  -target-feature +vfp4 -verify -fsyntax-only
   4 // RUN: %clang_cc1 %s -triple thumbeb-none-eabi  -target-feature +neon -verify -fsyntax-only
   5 // RUN: %clang_cc1 %s -triple thumbeb-none-eabi -target-feature +neon -target-feature +soft-float -DSOFT -verify -fsyntax-only
   6
   7 __attribute__((interrupt(IRQ))) void foo(void) {} // expected-error {{'interrupt' attribute requires a string}}
   8 __attribute__((interrupt("irq"))) void foo1(void) {} // expected-warning {{'interrupt' attribute argument not supported: irq}}
   9
  10 __attribute__((interrupt("IRQ", 1))) void foo2(void) {} // expected-error {{'interrupt' attribute takes no more than 1 argument}}
  11
  12 __attribute__((interrupt("IRQ"))) void foo3(void) {}
  13 __attribute__((interrupt("FIQ"))) void foo4(void) {}
  14 __attribute__((interrupt("SWI"))) void foo5(void) {}
  15 __attribute__((interrupt("ABORT"))) void foo6(void) {}
  16 __attribute__((interrupt("UNDEF"))) void foo7(void) {}
  17
  18 __attribute__((interrupt)) void foo8(void) {}
  19 __attribute__((interrupt())) void foo9(void) {}
  20 __attribute__((interrupt(""))) void foo10(void) {}
  21
  22 #ifndef SOFT
  23 // expected-note@+2 {{'callee1' declared here}}
  24 #endif
  25 void callee1(void);
  26 __attribute__((interrupt("IRQ"))) void callee2(void);
  27 void caller1(void) {
  28   callee1();
  29   callee2();
  30 }
  31
  32 #ifndef SOFT
  33 __attribute__((interrupt("IRQ"))) void caller2(void) {
  34   callee1(); // expected-warning {{call to function without interrupt attribute could clobber interruptee's VFP registers}}
  35   callee2();
  36 }
  37
  38 void (*callee3)(void);
  39 __attribute__((interrupt("IRQ"))) void caller3(void) {
  40   callee3(); // expected-warning {{call to function without interrupt attribute could clobber interruptee's VFP registers}}
  41 }
  42 #else
  43 __attribute__((interrupt("IRQ"))) void caller2(void) {
  44   callee1();
  45   callee2();
  46 }
  47
  48 void (*callee3)(void);
  49 __attribute__((interrupt("IRQ"))) void caller3(void) {
  50   callee3();
  51 }
  52 #endif