diff options
Diffstat (limited to 'lib/Support/JSON.cpp')
-rw-r--r-- | lib/Support/JSON.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Support/JSON.cpp b/lib/Support/JSON.cpp index d468013fb94a5..07a556814915d 100644 --- a/lib/Support/JSON.cpp +++ b/lib/Support/JSON.cpp @@ -182,6 +182,12 @@ bool operator==(const Value &L, const Value &R) { case Value::Boolean: return *L.getAsBoolean() == *R.getAsBoolean(); case Value::Number: + // Workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=323 + // The same integer must convert to the same double, per the standard. + // However we see 64-vs-80-bit precision comparisons with gcc-7 -O3 -m32. + // So we avoid floating point promotion for exact comparisons. + if (L.Type == Value::T_Integer || R.Type == Value::T_Integer) + return L.getAsInteger() == R.getAsInteger(); return *L.getAsNumber() == *R.getAsNumber(); case Value::String: return *L.getAsString() == *R.getAsString(); |