[libc-commits] [libc] [libc][math] Fix subtraction of infinity (PR #152017)

[via libc-commits]

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@@ -47,6 +47,8 @@ class SubTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
     EXPECT_FP_EQ(neg_inf, func(in.neg_inf, in.zero));
     EXPECT_FP_EQ(inf, func(in.inf, in.neg_zero));
     EXPECT_FP_EQ(neg_inf, func(in.neg_inf, in.neg_zero));
+    EXPECT_FP_EQ(neg_inf, func(in.zero, in.inf));
+    EXPECT_FP_EQ(inf, func(in.zero, in.neg_inf));
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overmighty wrote:

Should probably add the equivalent tests in `AddTest.h` while we're at it.

https://github.com/llvm/llvm-project/pull/152017