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[InstSimplify] fold copysign with negated operand, part 2

Authored by spatel on Dec 8 2019, 7:13 AM.

Description

[InstSimplify] fold copysign with negated operand, part 2

This is another transform suggested in PR44153:
https://bugs.llvm.org/show_bug.cgi?id=44153

Unlike rG12f39e0fede9, it doesn't look like the
backend matches this variant.

Details

Committed
spatelDec 8 2019, 7:16 AM
Parents
rGa05d7c278ee2: Fix typo in the AST Matcher Reference doc Closes: #54
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