Remove mention of conditional branches in undefined values section. #122980
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This statement is somewhat confusing when paired with the later statement that says "Branching on an undefined value is undefined behavior". Furthermore, this example does not show any conditional branches, so this comment seems to be outdated. See issue llvm#122532 for more details.
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@llvm/pr-subscribers-llvm-ir Author: Calvin Beck (Chobbes) ChangesThis statement is somewhat confusing when paired with the later statement that says "Branching on an undefined value is undefined behavior". Furthermore, this example does not show any conditional branches, so this comment seems to be outdated. See issue #122532 for more details. Full diff: https://github.com/llvm/llvm-project/pull/122980.diff 1 Files Affected:
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index 8cc9036d1b67f6..b922636d6c914b 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -4776,8 +4776,8 @@ allowing the '``or``' to be folded to -1.
%B = undef
%C = undef
-This set of examples shows that undefined '``select``' (and conditional
-branch) conditions can go *either way*, but they have to come from one
+This set of examples shows that undefined '``select``'
+conditions can go *either way*, but they have to come from one
of the two operands. In the ``%A`` example, if ``%X`` and ``%Y`` were
both known to have a clear low bit, then ``%A`` would have to have a
cleared low bit. However, in the ``%C`` example, the optimizer is
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This statement is somewhat confusing when paired with the later statement that says "Branching on an undefined value is undefined behavior". Furthermore, this example does not show any conditional branches, so this comment seems to be outdated.
See issue #122532 for more details.