test/Feature/ubsan/ubsan_float_cast_overflow.c


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// RUN: %clang %s -fsanitize=float-cast-overflow -emit-llvm -g %O0opt -c -o %t.bc
// RUN: rm -rf %t.klee-out
// RUN: %klee --output-dir=%t.klee-out --emit-all-errors --ubsan-runtime %t.bc 2>&1 | FileCheck %s
// RUN: ls %t.klee-out/ | grep .ktest | wc -l | grep 1
// RUN: ls %t.klee-out/ | grep .overflow.err | wc -l | grep 1

#include "klee/klee.h"

int main() {
  float f = 0x7fffff80;
  volatile int result;

  // TODO: uncomment when support for floating points is integrated

  //  klee_make_symbolic(&f, sizeof(f), "f");

  // CHECK: KLEE: ERROR: {{.*}}runtime/Sanitizer/ubsan/ubsan_handlers.cpp:{{[0-9]+}}: float-cast-overflow
  result = f + 0x80;
  return 0;
}