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Diffstat (limited to 'test/Analysis/misc-ps-region-store.m')
-rw-r--r-- | test/Analysis/misc-ps-region-store.m | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/test/Analysis/misc-ps-region-store.m b/test/Analysis/misc-ps-region-store.m index d10b9fa5ded7..42551417a2a5 100644 --- a/test/Analysis/misc-ps-region-store.m +++ b/test/Analysis/misc-ps-region-store.m @@ -955,3 +955,62 @@ void pr6288_b(void) { *(px[0]) = 0; // no-warning } +// <rdar://problem/7817800> - A bug in RemoveDeadBindings was causing instance variable bindings +// to get prematurely pruned from the state. +@interface Rdar7817800 { + char *x; +} +- (void) rdar7817800_baz; +@end + +char *rdar7817800_foobar(); +void rdar7817800_qux(void*); + +@implementation Rdar7817800 +- (void) rdar7817800_baz { + if (x) + rdar7817800_qux(x); + x = rdar7817800_foobar(); + // Previously this triggered a bogus null dereference warning. + x[1] = 'a'; // no-warning +} +@end + +// PR 6036 - This test case triggered a crash inside StoreManager::CastRegion because the size +// of 'unsigned long (*)[0]' is 0. +struct pr6036_a { int pr6036_b; }; +struct pr6036_c; +void u132monitk (struct pr6036_c *pr6036_d) { + (void) ((struct pr6036_a *) (unsigned long (*)[0]) ((char *) pr6036_d - 1))->pr6036_b; // expected-warning{{Casting a non-structure type to a structure type and accessing a field can lead to memory access errors or data corruption}} +} + +// <rdar://problem/7813989> - ?-expressions used as a base of a member expression should be treated as an lvalue +typedef struct rdar7813989_NestedVal { int w; } rdar7813989_NestedVal; +typedef struct rdar7813989_Val { rdar7813989_NestedVal nv; } rdar7813989_Val; + +int rdar7813989(int x, rdar7813989_Val *a, rdar7813989_Val *b) { + // This previously crashed with an assertion failure. + int z = (x ? a->nv : b->nv).w; + return z + 1; +} + +// PR 6844 - Don't crash on vaarg expression. +typedef __builtin_va_list va_list; +void map(int srcID, ...) { + va_list ap; + int i; + for (i = 0; i < srcID; i++) { + int v = __builtin_va_arg(ap, int); + } +} + +// PR 6854 - crash when casting symbolic memory address to a float +// Handle casting from a symbolic region to a 'float'. This isn't +// really all that intelligent, but previously this caused a crash +// in SimpleSValuator. +void pr6854(void * arg) { + void * a = arg; + *(void**)a = arg; + float f = *(float*) a; +} + |