minix/external/bsd/llvm/dist/clang/test/Analysis/idempotent-operations-limited-loops.c
Lionel Sambuc f4a2713ac8 Importing netbsd clang -- pristine
Change-Id: Ia40e9ffdf29b5dab2f122f673ff6802a58bc690f
2014-07-28 17:05:57 +02:00

21 lines
1.1 KiB
C

// RUN: %clang_cc1 -analyze -analyzer-store=region -analyzer-constraints=range -fblocks -analyzer-opt-analyze-nested-blocks -analyzer-checker=core,alpha.deadcode.IdempotentOperations -analyzer-max-loop 3 -verify %s
// RUN: %clang_cc1 -analyze -analyzer-store=region -analyzer-constraints=range -fblocks -analyzer-opt-analyze-nested-blocks -analyzer-checker=core,alpha.deadcode.IdempotentOperations -analyzer-max-loop 4 -verify %s
// RUN: %clang_cc1 -analyze -analyzer-store=region -analyzer-constraints=range -fblocks -analyzer-opt-analyze-nested-blocks -analyzer-checker=core,alpha.deadcode.IdempotentOperations %s -verify
void always_warning() { int *p = 0; *p = 0xDEADBEEF; } // expected-warning{{Dereference of null pointer (loaded from variable 'p')}}
// This test case previously caused a bogus idempotent operation warning
// due to us not properly culling warnings due to incomplete analysis of loops.
int pr8403()
{
int i;
for(i=0; i<10; i++)
{
int j;
for(j=0; j+1<i; j++)
{
}
}
return 0;
}