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fix merge problem: struct field alignment in powerpc-macos gcc

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This commit is contained in:
Wolfgang Thaller 2017-10-07 16:04:54 +02:00
parent 82c625ae6f
commit 46c502e5da
1 changed files with 14 additions and 8 deletions
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22
gcc/gcc/config/rs6000/macos.h
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@ -74,13 +74,19 @@
/* Static linking with shared libstdc++ requires libsupc++ as well. */
#define LIBSTDCXX_STATIC "supc++"
/* This now supports a natural alignment mode. */
/* AIX word-aligns FP doubles but doubleword-aligns 64-bit ints. */
#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
((TARGET_ALIGN_NATURAL == 0 \
&& TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode) \
? MIN ((COMPUTED), 32) \
: (COMPUTED))
/* Compute field alignment.
This implements the 'power' alignment rule by pegging the alignment of
items (beyond the first aggregate field) to 32 bits. The pegging is
suppressed for vector and long double items (both 128 in size).
There is a dummy use of the FIELD argument to avoid an unused variable
warning (see PR59496). */
#define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \
((void) (FIELD), \
(TARGET_ALIGN_NATURAL \
? (COMPUTED) \
: (COMPUTED) == 128 \
? 128 \
: MIN ((COMPUTED), 32)))
/* AIX increases natural record alignment to doubleword if the first
field is an FP double while the FP fields remain word aligned. */
@ -235,4 +241,4 @@
#define COLLECT_SHARED_FINI_FUNC(STREAM, FUNC) \
fprintf ((STREAM), "void %s() {\n\t%s();\n}\n", aix_shared_fininame, (FUNC))
#endif
#endif