42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* { dg-do run } */
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/* { dg-require-effective-target hard_float } */
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/* { dg-options "-O2 -mhard-float" } */
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#include <stdlib.h>
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/* The MMA types below are enabled for pre-power10 compiles, because the
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built-ins that use them must always be initialized in case the user has
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a target attribute or pragma on a function that uses the MMA built-ins.
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Since the test below doesn't need any other MMA support, we can enable
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this test case on basically any cpu that has hard floating point
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registers. */
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struct
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{
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int __attribute__ ((__aligned__)) ivar;
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__vector_pair pair;
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__vector_quad quad;
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} s;
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int
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main (void)
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{
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/* Verify default alignment is 16-byte aligned (BIGGEST_ALIGNMENT).
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This may change in the future, but that is an ABI break, so this
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hardcoded test case is here to be a noisy FAIL as a warning, in
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case the ABI change was unintended and unwanted. An example of where
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this can break an ABI is in glibc's struct _Unwind_Exception. */
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if (__alignof__ (s.ivar) != 16)
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abort ();
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/* Verify __vector_pair types are 32-byte aligned. */
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if (__alignof__ (s.pair) != 32)
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abort ();
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/* Verify __vector_quad types are 64-byte aligned. */
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if (__alignof__ (s.quad) != 64)
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abort ();
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return 0;
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}
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