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Fix LIT failure on native aix

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On AIX, char bitfields have the same alignment as unsigned int.
Reference: https://reviews.llvm.org/D87029

Differential Revision: https://reviews.llvm.org/D102715
This commit is contained in:
Xiangling Liao 2021-05-20 08:58:53 -04:00
parent 80c1adfd18
commit d74b6635ef
1 changed files with 10 additions and 7 deletions
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17
clang/test/Sema/struct-packed-align.c
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@ -146,18 +146,17 @@ extern int n2[__alignof(struct nS) == 1 ? 1 : -1];
// GCC 4.4 but the change can lead to differences in the structure layout.
// See the documentation of -Wpacked-bitfield-compat for more information.
struct packed_chars {
char a:4;
char a : 8, b : 8, c : 8, d : 4;
#ifdef __ORBIS__
// Test for pre-r254596 clang behavior on the PS4 target. PS4 must maintain
// ABI backwards compatibility.
char b:8 __attribute__ ((packed));
char e : 8 __attribute__((packed));
// expected-warning@-1 {{'packed' attribute ignored for field of type 'char'}}
char c:4;
#else
char b:8 __attribute__ ((packed));
char e : 8 __attribute__((packed));
// expected-warning@-1 {{'packed' attribute was ignored on bit-fields with single-byte alignment in older versions of GCC and Clang}}
char c:4;
#endif
char f : 4, g : 8, h : 8, i : 8;
};
#if (defined(_WIN32) || defined(__ORBIS__)) && !defined(__declspec) // _MSC_VER is unavailable in cc1.
@ -165,9 +164,13 @@ struct packed_chars {
//
// Additionally, test for pre-r254596 clang behavior on the PS4 target. PS4
// must maintain ABI backwards compatibility.
extern int o1[sizeof(struct packed_chars) == 3 ? 1 : -1];
extern int o1[sizeof(struct packed_chars) == 9 ? 1 : -1];
extern int o2[__alignof(struct packed_chars) == 1 ? 1 : -1];
#elif defined(_AIX)
// On AIX, char bitfields have the same alignment as unsigned int.
extern int o1[sizeof(struct packed_chars) == 8 ? 1 : -1];
extern int o2[__alignof(struct packed_chars) == 4 ? 1 : -1];
#else
extern int o1[sizeof(struct packed_chars) == 2 ? 1 : -1];
extern int o1[sizeof(struct packed_chars) == 8 ? 1 : -1];
extern int o2[__alignof(struct packed_chars) == 1 ? 1 : -1];
#endif