diff options
Diffstat (limited to 'test/Analysis/inline.c')
-rw-r--r-- | test/Analysis/inline.c | 65 |
1 files changed, 63 insertions, 2 deletions
diff --git a/test/Analysis/inline.c b/test/Analysis/inline.c index 2aac156..0827d93 100644 --- a/test/Analysis/inline.c +++ b/test/Analysis/inline.c @@ -1,5 +1,4 @@ -// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-inline-call -analyzer-store region -verify %s -// XFAIL: * +// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-ipa=inlining -analyzer-store region -verify %s int test1_f1() { int y = 1; @@ -29,3 +28,65 @@ void test2_f3() { test2_f1(test2_f2()); // expected-warning{{too many arguments in call to 'test2_f1'}} } +// Test that inlining works with recursive functions. + +unsigned factorial(unsigned x) { + if (x <= 1) + return 1; + return x * factorial(x - 1); +} + +void test_factorial() { + if (factorial(3) == 6) { + int *p = 0; + *p = 0xDEADBEEF; // expected-warning {{null}} + } + else { + int *p = 0; + *p = 0xDEADBEEF; // no-warning + } +} + +void test_factorial_2() { + unsigned x = factorial(3); + if (x == factorial(3)) { + int *p = 0; + *p = 0xDEADBEEF; // expected-warning {{null}} + } + else { + int *p = 0; + *p = 0xDEADBEEF; // no-warning + } +} + +// Test that returning stack memory from a parent stack frame does +// not trigger a warning. +static char *return_buf(char *buf) { + return buf + 10; +} + +void test_return_stack_memory_ok() { + char stack_buf[100]; + char *pos = return_buf(stack_buf); + (void) pos; +} + +char *test_return_stack_memory_bad() { + char stack_buf[100]; + char *x = stack_buf; + return x; // expected-warning {{stack memory associated}} +} + +// Test that passing a struct value with an uninitialized field does +// not trigger a warning if we are inlining and the body is available. +struct rdar10977037 { int x, y; }; +int test_rdar10977037_aux(struct rdar10977037 v) { return v.y; } +int test_rdar10977037_aux_2(struct rdar10977037 v); +int test_rdar10977037() { + struct rdar10977037 v; + v.y = 1; + v. y += test_rdar10977037_aux(v); // no-warning + return test_rdar10977037_aux_2(v); // expected-warning {{Passed-by-value struct argument contains uninitialized data}} +} + + |