[flang-commits] [flang] [llvm] [flang][PPC] Implement ieee_set_status and ieee_get_status for AIX (PR #215618)

[Kelvin Li via flang-commits]

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@@ -142,3 +142,19 @@ TEST(Exceptions, ClearOneLeavesOthersAlone) {
   GTEST_SKIP() << "FE_OVERFLOW and FE_INVALID required for this test";
 #endif
 }
+
+TEST(Exceptions, GetStatusTypeSizeMatchesPlatformLayout) {
+  const std::size_t sz{RTNAME(GetStatusTypeSize)()};
+#if defined(_AIX)
+  EXPECT_EQ(sz, sizeof(std::fenv_t) + sizeof(double))
+      << "expected sizeof(fenv_t)+sizeof(double)="
+      << sizeof(std::fenv_t) + sizeof(double);
+#else
+  EXPECT_EQ(sz, sizeof(std::fenv_t))
+      << "expected sizeof(fenv_t)=" << sizeof(std::fenv_t);
+#endif
+  // The size must fit in ieee_status_type.__data as integer(4) with
+  // extent _FORTRAN_RUNTIME_IEEE_FENV_T_EXTENT.
+  EXPECT_LE(sz, 32u)
+      << "GetStatusTypeSize exceeds the 32-byte ieee_status_type.__data field";
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kkwli wrote:

I move the `EXPECT_LE` check in the `#if defined(_AIX)` block.

https://github.com/llvm/llvm-project/pull/215618