clang/test/CodeGen/ptrauth-function-lvalue-cast.c

   1 // RUN: %clang_cc1 %s -triple arm64e-apple-ios13 -fptrauth-calls -fptrauth-intrinsics -emit-llvm -o- | FileCheck %s
   2 // RUN: %clang_cc1 %s -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics -emit-llvm -o- | FileCheck %s
   3
   4 typedef void (*fptr_t)(void);
   5
   6 char *cptr;
   7 void (*fptr)(void);
   8
   9 // CHECK: define {{(dso_local )?}}void @test1
  10 void test1() {
  11   // CHECK: [[LOAD:%.*]] = load ptr, ptr @cptr
  12   // CHECK: call void [[LOAD]]() [ "ptrauth"(i32 0, i64 0) ]
  13   // CHECK: ret void
  14
  15   (*(fptr_t)cptr)();
  16 }
  17
  18 // CHECK: define {{(dso_local )?}}i8 @test2
  19 char test2() {
  20   return *(char *)fptr;
  21   // CHECK: [[LOAD:%.*]] = load ptr, ptr @fptr
  22   // CHECK: [[LOAD1:%.*]] = load i8, ptr [[LOAD]]
  23   // CHECK: ret i8 [[LOAD1]]
  24 }