llvm-project/clang/test/Analysis/addrspace-null.c

48 lines
1.1 KiB
C

// RUN: %clang_analyze_cc1 -triple amdgcn-unknown-unknown \
// RUN: -analyze -analyzer-checker=core -DAMDGCN_TRIPLE \
// RUN: -analyze -analyzer-checker=debug.ExprInspection \
// RUN: -Wno-implicit-int -Wno-int-conversion -verify %s
//
// RUN: %clang_analyze_cc1 -triple amdgcn-unknown-unknown \
// RUN: -analyze -analyzer-checker=core -DDEFAULT_TRIPLE \
// RUN: -analyze -analyzer-checker=debug.ExprInspection \
// RUN: -Wno-implicit-int -Wno-int-conversion -verify %s
// From https://llvm.org/docs/AMDGPUUsage.html#address-spaces,
// select address space 3 (local), since the pointer size is
// different than Generic.
// expected-no-diagnostics
#define DEVICE __attribute__((address_space(3)))
#if defined(AMDGCN_TRIPLE)
// this crashes
int fn1() {
int val = 0;
DEVICE int *dptr = val;
return dptr == (void *)0;
}
// does not crash
int fn2() {
int val = 0;
DEVICE int *dptr = val;
return dptr == (DEVICE void *)0;
}
// this crashes
int fn3() {
int val = 0;
int *dptr = val;
return dptr == (DEVICE void *)0;
}
#endif
// does not crash
int fn4() {
int val = 0;
int *dptr = val;
return dptr == (void *)0;
}