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annotate gcc/testsuite/gcc.dg/attr-aligned-2.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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145
1830386684a0 gcc-9.2.0
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1 /* PR c/88172 - attribute aligned of zero silently accepted but ignored
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2 Verify that valid alignment on functions is accepted for all targets
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3 and that alignment of zero is ignored with a warning.
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4 { dg-do compile }
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5 { dg-options "-Wno-pedantic" } */
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6
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7 #define ASSERT(expr) _Static_assert (expr, #expr)
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8 #define ALIGN(n) __attribute__ ((aligned (n)))
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9 #define alignof(expr) __alignof__ (expr)
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10
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11 ALIGN (0) void f0 (void) { } /* { dg-warning "requested alignment .0. is not a positive power of 2" } */
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12 ALIGN (1) void f1 (void) { }
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13 ALIGN (2) void f2 (void) { }
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14 ALIGN (3) void f3 (void) { } /* { dg-error "requested alignment '3' is not a positive power of 2" } */
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15 ALIGN (4) void f4 (void) { }
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16
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17 ASSERT (alignof (f0) > 0);
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18 ASSERT (alignof (f1) >= 1);
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19 ASSERT (alignof (f2) >= 2);
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20 ASSERT (alignof (f3) >= 1);
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21 ASSERT (alignof (f4) >= 4);