[PATCH] D59712: [APSInt][OpenMP] Fix isNegative, etc. for unsigned types

[Roman Lebedev via Phabricator via cfe-commits]

lebedev.ri requested changes to this revision.
lebedev.ri added inline comments.
This revision now requires changes to proceed.


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Comment at: llvm/unittests/ADT/APSIntTest.cpp:188-194
+  EXPECT_FALSE(CharBoundaryUnder.isNegative());
+  EXPECT_TRUE(CharBoundaryUnder.isNonNegative());
+  EXPECT_TRUE(CharBoundaryUnder.isStrictlyPositive());
+
+  EXPECT_FALSE(CharBoundaryOver.isNegative());
+  EXPECT_TRUE(CharBoundaryOver.isNonNegative());
+  EXPECT_TRUE(CharBoundaryOver.isStrictlyPositive());
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I do not understand.
`0x7f` is 127, it is obviously a maximal positive 8-bit value.
but `0x80` is 128 aka -128, is it not minimal negative 8-bit value?
Is the test correct?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D59712/new/

https://reviews.llvm.org/D59712