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Eli Friedman
589b088809
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357214 91177308-0d34-0410-b5e6-96231b3b80d8
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