[llvm] [APFloat] Fix `IEEEFloat::addOrSubtractSignificand` and `IEEEFloat::normalize` (PR #98721)
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Mon Jul 15 02:51:31 PDT 2024
================
@@ -560,6 +560,17 @@ TEST(APFloatTest, FMA) {
EXPECT_EQ(-8.85242279E-41f, f1.convertToFloat());
}
+ // Regression test for failing the `assert(!carry)` in
+ // `addOrSubtractSignificand` and normalizing the exponent even when the
+ // significand is zero if there is a lost fraction.
+ {
+ APFloat f1(-1.4728589E-38f);
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arsenm wrote:
I assume more test values are required to hit the cmpGreaterThan, capLessThan, and cmpEqual cases
https://github.com/llvm/llvm-project/pull/98721
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