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Eli Friedman d78fb504e2 [MC] Fix floating-point literal lexing.
This patch has three related fixes to improve float literal lexing:

1. Make AsmLexer::LexDigit handle floats without a decimal point more
   consistently.
2. Make AsmLexer::LexFloatLiteral print an error for floats which are
   apparently missing an "e".
3. Make APFloat::convertFromString use binutils-compatible exponent
   parsing.

Together, this fixes some cases where a float would be incorrectly
rejected, fixes some cases where the compiler would crash, and improves
diagnostics in some cases.

Patch by Brandon Jones.

Differential Revision: https://reviews.llvm.org/D57321

llvm-svn: 357214
2019-03-28 21:12:28 +00:00
..
2017-05-01 14:00:54 +00:00
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2016-03-01 08:18:28 +00:00
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