mirror of git://gcc.gnu.org/git/gcc.git
22 lines
850 B
C
22 lines
850 B
C
/* PR c/88172 - attribute aligned of zero silently accepted but ignored
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Verify that valid alignment on functions is accepted for all targets
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and that alignment of zero is ignored with a warning.
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{ dg-do compile }
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{ dg-options "-Wno-pedantic" } */
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#define ASSERT(expr) _Static_assert (expr, #expr)
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#define ALIGN(n) __attribute__ ((aligned (n)))
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#define alignof(expr) __alignof__ (expr)
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ALIGN (0) void f0 (void) { } /* { dg-warning "requested alignment .0. is not a positive power of 2" } */
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ALIGN (1) void f1 (void) { }
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ALIGN (2) void f2 (void) { }
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ALIGN (3) void f3 (void) { } /* { dg-error "requested alignment '3' is not a positive power of 2" } */
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ALIGN (4) void f4 (void) { }
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ASSERT (alignof (f0) > 0);
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ASSERT (alignof (f1) >= 1);
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ASSERT (alignof (f2) >= 2);
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ASSERT (alignof (f3) >= 1);
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ASSERT (alignof (f4) >= 4);
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