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Merge pull request #10626 from maximilianfv/fix/tests-floating-point-enabled-query-rosetta

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fix(tests): compare the enabled exception query with the environment the host keeps
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Dean authored and GitHub committed 2026-10-27 10:30:46 +13:00
2 parents 9021e9b66e 7ce21df27a
commit 82ae582706
1 file changed
+2 -1
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core/libs/tests/GuestFloatingPoint.cpp
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@@ -66,13 +66,14 @@ void CheckEnabledExceptions() {
state.x87[1] = (state.x87[1] & ~0x3fu) | (x87 & 0x15u);
state.sse = (state.sse & ~0x7fbfu) | 0x2000 | (sse << 7) | (sse & 0x2au);
WriteEnvironment(state);
const auto written = ReadEnvironment();
*__error_nid_postfix() = 123;
const int enabled = fegetexcept_nid_postfix();
const int error = *__error_nid_postfix();
const auto after = ReadEnvironment();
WriteEnvironment(seeded);
Require(enabled == static_cast<int>(0x3f ^ x87), "enabled exceptions use the x87 masks independently of SSE");
Require(after.x87[0] == state.x87[0] && after.x87[1] == state.x87[1] && after.sse == state.sse,
Require(after.x87[0] == written.x87[0] && after.x87[1] == written.x87[1] && after.sse == written.sse,
"enabled exception query preserves control modes and flags");
Require(error == 123, "enabled exception query preserves errno");
}