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[AIX] Suppress -Waix-compat warning with SmallVector class 

When building LLVM with Open XL and -Werror is specified, the -Waix-compat warning becomes an error. This patch updates the SmallVector class to suppress the -Waix-compat warning/error on AIX.

Reviewed By: daltenty

Differential Revision: https://reviews.llvm.org/D108577
This commit is contained in:
Jake Egan 2021-08-30 10:42:59 -04:00
parent 2e5c17d19e
commit 57b46056b9
1 changed files with 9 additions and 0 deletions
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9
llvm/lib/Support/SmallVector.cpp
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@ -19,12 +19,21 @@ using namespace llvm;
// Check that no bytes are wasted and everything is well-aligned.
namespace {
// These structures may cause binary compat warnings on AIX. Suppress the
// warning since we are only using these types for the static assertions below.
#if defined(_AIX)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waix-compat"
#endif
struct Struct16B {
alignas(16) void *X;
};
struct Struct32B {
alignas(32) void *X;
};
#if defined(_AIX)
#pragma GCC diagnostic pop
#endif
}
static_assert(sizeof(SmallVector<void *, 0>) ==
sizeof(unsigned) * 2 + sizeof(void *),