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9f7df0c068
Also add testcases for a bunch of expression forms that cause our evaluator to crash. See PR33140 and PR32864 for crashes that this was causing. This reverts r305287, which reverted r305239, which reverted r301742. The previous revert claimed that buildbots were broken, but did not add any testcases and the buildbots have lost all memory of what was wrong here. Changes to test/OpenMP are not reverted; another change has triggered those tests to change their output in the same way that r301742 did. llvm-svn: 306346
188 lines
8.0 KiB
C
188 lines
8.0 KiB
C
// RUN: %clang_cc1 %s -verify -fsyntax-only -triple x86_64-pc-linux-gnu
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typedef unsigned long long uint64_t;
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typedef unsigned int uint32_t;
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// Check integer sizes.
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int array64[sizeof(uint64_t) == 8 ? 1 : -1];
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int array32[sizeof(uint32_t) == 4 ? 1 : -1];
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int arrayint[sizeof(int) < sizeof(uint64_t) ? 1 : -1];
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uint64_t f0(uint64_t);
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uint64_t f1(uint64_t, uint32_t);
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uint64_t f2(uint64_t, ...);
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static const uint64_t overflow = 1 * 4608 * 1024 * 1024; // expected-warning {{overflow in expression; result is 536870912 with type 'int'}}
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uint64_t check_integer_overflows(int i) {
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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uint64_t overflow = 4608 * 1024 * 1024,
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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overflow2 = (uint64_t)(4608 * 1024 * 1024),
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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overflow3 = (uint64_t)(4608 * 1024 * 1024 * i),
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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overflow4 = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL),
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// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
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multi_overflow = (uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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overflow += overflow2 = overflow3 = (uint64_t)(4608 * 1024 * 1024);
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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overflow += overflow2 = overflow3 = 4608 * 1024 * 1024;
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uint64_t not_overflow = 4608 * 1024 * 1024ULL;
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uint64_t not_overflow2 = (1ULL * ((uint64_t)(4608) * (1024 * 1024)) + 2ULL);
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// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
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overflow = 4608 * 1024 * 1024 ? 4608 * 1024 * 1024 : 0;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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overflow = 0 ? 0 : 4608 * 1024 * 1024;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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if (4608 * 1024 * 1024)
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return 0;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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if ((uint64_t)(4608 * 1024 * 1024))
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return 1;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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if ((uint64_t)(4608 * 1024 * 1024))
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return 2;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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if ((uint64_t)(4608 * 1024 * 1024 * i))
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return 3;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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if ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL))
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return 4;
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// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
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if ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)))
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return 5;
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switch (i) {
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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case 4608 * 1024 * 1024:
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return 6;
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// expected-warning@+1 {{overflow in expression; result is 537919488 with type 'int'}}
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case (uint64_t)(4609 * 1024 * 1024):
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return 7;
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// expected-error@+1 {{expression is not an integer constant expression}}
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case ((uint64_t)(4608 * 1024 * 1024 * i)):
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return 8;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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case ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL)):
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return 9;
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// expected-warning@+2 2{{overflow in expression; result is 536870912 with type 'int'}}
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// expected-warning@+1 {{overflow converting case value to switch condition type (288230376151711744 to 0)}}
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case ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024))):
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return 10;
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}
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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while (4608 * 1024 * 1024);
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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while ((uint64_t)(4608 * 1024 * 1024));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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while ((uint64_t)(4608 * 1024 * 1024));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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while ((uint64_t)(4608 * 1024 * 1024 * i));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
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// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
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while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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do { } while (4608 * 1024 * 1024);
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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do { } while ((uint64_t)(4608 * 1024 * 1024));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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do { } while ((uint64_t)(4608 * 1024 * 1024));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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do { } while ((uint64_t)(4608 * 1024 * 1024 * i));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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do { } while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
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// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
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do { } while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
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// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
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// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
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// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
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for (uint64_t i = 4608 * 1024 * 1024;
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(uint64_t)(4608 * 1024 * 1024);
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i += (uint64_t)(4608 * 1024 * 1024 * i));
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// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
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// expected-warning@+3 2{{overflow in expression; result is 536870912 with type 'int'}}
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// expected-warning@+3 2{{overflow in expression; result is 536870912 with type 'int'}}
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for (uint64_t i = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL);
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((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
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i = ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024))));
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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_Complex long long x = 4608 * 1024 * 1024;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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(__real__ x) = 4608 * 1024 * 1024;
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// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
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(__imag__ x) = 4608 * 1024 * 1024;
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// expected-warning@+4 {{overflow in expression; result is 536870912 with type 'int'}}
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// expected-warning@+3 {{array index 536870912 is past the end of the array (which contains 10 elements)}}
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// expected-note@+1 {{array 'a' declared here}}
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uint64_t a[10];
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a[4608 * 1024 * 1024] = 1i;
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// expected-warning@+2 {{overflow in expression; result is 536870912 with type 'int'}}
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uint64_t *b;
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uint64_t b2 = b[4608 * 1024 * 1024] + 1;
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// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
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(void)((i ? (4608 * 1024 * 1024) : (4608 * 1024 * 1024)) + 1);
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// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
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return ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024)));
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}
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struct s {
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unsigned x;
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unsigned y;
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} s = {
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.y = 5,
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.x = 4 * 1024 * 1024 * 1024 // expected-warning {{overflow in expression; result is 0 with type 'int'}}
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};
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struct s2 {
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unsigned a0;
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struct s3 {
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unsigned a2;
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struct s4 {
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unsigned a4;
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} a3;
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} a1;
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} s2 = {
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.a0 = 4 * 1024 * 1024 * 1024, // expected-warning {{overflow in expression; result is 0 with type 'int'}}
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{
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.a2 = 4 * 1024 * 1024 * 1024, // expected-warning {{overflow in expression; result is 0 with type 'int'}}
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{
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.a4 = 4 * 1024 * 1024 * 1024 // expected-warning {{overflow in expression; result is 0 with type 'int'}}
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}
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}
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};
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