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

   1 // RUN: %clang_cc1 -triple riscv32-unknown-elf -emit-llvm -DCHECK_IR < %s| FileCheck %s
   2 // RUN: %clang_cc1 -triple riscv64-unknown-elf -emit-llvm -DCHECK_IR < %s| FileCheck %s
   3 // RUN: %clang_cc1 %s -triple riscv32-unknown-elf -verify -fsyntax-only
   4 // RUN: %clang_cc1 %s -triple riscv64-unknown-elf -verify -fsyntax-only
   5
   6 #if defined(CHECK_IR)
   7 // CHECK-LABEL:  @foo_user() #0
   8 // CHECK: ret void
   9 __attribute__((interrupt("user"))) void foo_user(void) {}
  10 // CHECK-LABEL:  @foo_supervisor() #1
  11 // CHECK: ret void
  12 __attribute__((interrupt("supervisor"))) void foo_supervisor(void) {}
  13 // CHECK-LABEL:  @foo_machine() #2
  14 // CHECK: ret void
  15 __attribute__((interrupt("machine"))) void foo_machine(void) {}
  16 // CHECK-LABEL:  @foo_default() #2
  17 // CHECK: ret void
  18 __attribute__((interrupt())) void foo_default(void) {}
  19 // CHECK-LABEL:  @foo_default2() #2
  20 // CHECK: ret void
  21 __attribute__((interrupt())) void foo_default2(void) {}
  22 // CHECK: attributes #0
  23 // CHECK: "interrupt"="user"
  24 // CHECK: attributes #1
  25 // CHECK: "interrupt"="supervisor"
  26 // CHECK: attributes #2
  27 // CHECK: "interrupt"="machine"
  28 #else
  29 struct a { int b; };
  30
  31 struct a test __attribute__((interrupt)); // expected-warning {{'interrupt' attribute only applies to functions}}
  32
  33 __attribute__((interrupt("USER"))) void foo1(void) {} // expected-warning {{'interrupt' attribute argument not supported: USER}}
  34
  35 __attribute__((interrupt("user", 1))) void foo2(void) {} // expected-error {{'interrupt' attribute takes no more than 1 argument}}
  36
  37 __attribute__((interrupt)) int foo3(void) {return 0;} // expected-warning {{RISC-V 'interrupt' attribute only applies to functions that have a 'void' return type}}
  38
  39 __attribute__((interrupt())) void foo4(void);
  40 __attribute__((interrupt())) void foo4(void) {}
  41
  42 __attribute__((interrupt())) void foo5(int a) {} // expected-warning {{RISC-V 'interrupt' attribute only applies to functions that have no parameters}}
  43
  44 __attribute__((interrupt("user"), interrupt("supervisor"))) void foo6(void) {} // expected-warning {{repeated RISC-V 'interrupt' attribute}} \
  45   // expected-note {{repeated RISC-V 'interrupt' attribute is here}}
  46
  47 __attribute__((interrupt, interrupt)) void foo7(void) {} // expected-warning {{repeated RISC-V 'interrupt' attribute}} \
  48                                                      // expected-note {{repeated RISC-V 'interrupt' attribute is here}}
  49
  50 __attribute__((interrupt(""))) void foo8(void) {} // expected-warning {{'interrupt' attribute argument not supported}}
  51
  52 __attribute__((interrupt("user"))) void foo9(void);
  53 __attribute__((interrupt("supervisor"))) void foo9(void);
  54 __attribute__((interrupt("machine"))) void foo9(void);
  55
  56 __attribute__((interrupt("user"))) void foo10(void) {}
  57 __attribute__((interrupt("supervisor"))) void foo11(void) {}
  58 __attribute__((interrupt("machine"))) void foo12(void) {}
  59 __attribute__((interrupt())) void foo13(void) {}
  60 __attribute__((interrupt)) void foo14(void) {}
  61 #endif
  62