a06ad18669
Summary: This is the compiler-rt part. The clang part is D54589. This is a second commit, the original one was r351106, which was mass-reverted in r351159 because 2 compiler-rt tests were failing. Now, i have fundamentally changed the testing approach: i malloc a few bytes, intentionally mis-align the pointer (increment it by one), and check that. Also, i have decreased the expected alignment. This hopefully should be enough to pacify all the bots. If not, i guess i might just drop the two 'bad' tests. Reviewers: filcab, vsk, #sanitizers, vitalybuka, rsmith, morehouse Reviewed By: morehouse Subscribers: rjmccall, krytarowski, rsmith, kcc, srhines, kubamracek, dberris, llvm-commits Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D54590 llvm-svn: 351178
18 lines
648 B
C++
18 lines
648 B
C++
// RUN: %clangxx -fsanitize=alignment %s -o %t
|
|
// RUN: %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NOTYPE
|
|
// RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TYPE
|
|
// REQUIRES: !ubsan-standalone && !ubsan-standalone-static
|
|
|
|
#include <stdlib.h>
|
|
|
|
int main(int argc, char* argv[]) {
|
|
char *ptr = (char *)malloc(2);
|
|
|
|
__builtin_assume_aligned(ptr + 1, 0x8000);
|
|
// CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:32
|
|
// CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: alignment-assumption {{.*}}summary.cpp:[[@LINE-2]]:32
|
|
free(ptr);
|
|
|
|
return 0;
|
|
}
|