[pull] master from llvm:master #45

pull · 2019-08-29T15:44:58Z

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…t from -phi-node-folding-threshold=3 This is the naive implementation of x86 BZHI/BEXTR instruction: it takes input and bit count, and extracts low nbits up to bit width. I.e. unlike shift it does not have any UB when nbits >= bitwidth. Which means we don't need a while PHI here, simple select will do. And if it's a select, it should then be trivial to fix codegen to select it to BEXTR/BZHI. See https://bugs.llvm.org/show_bug.cgi?id=34704 llvm-svn: 370369

llvm-svn: 370371

…extracted parameters llvm-svn: 370372

Summary: The only reason for this function's existance is so that we could pass the correct size into the DWARFExpression constructor. However, there is no harm in passing the entire data extractor into the DWARFExpression, since the same code is performing the size determination as well as the subsequent parse. So, if we get malformed input or there's a bug in the parser, we'd compute the wrong size anyway. Additionally, reducing the number of entry points into the location list parsing machinery makes it easier to switch the llvm debug_loc(lists) parsers. While inside, I added a couple of tests for invalid location list handling. Reviewers: JDevlieghere, clayborg Subscribers: aprantl, javed.absar, kristof.beyls, lldb-commits Differential Revision: https://reviews.llvm.org/D66789 llvm-svn: 370373

…ided context Currently, we return all the entries such that their decl_ctx pointer >= decl_ctx provided. Instead, we should return only the ones that decl_ctx pointer == decl_ctx provided. Differential Revision: https://reviews.llvm.org/D66357 Patch by Guilherme Andrade <guiandrade@google.com>. llvm-svn: 370374

Also add -ppc-asm-full-reg-names,-ppc-vsr-nums-as-vr. llvm-svn: 370375

@font-face

) In clang there are two options `-f[no]cx-limited-range` and `-f[no]cx-fortran-rules` that control the range of complex multiplication and division. However, it is unclear how these options interact with one another. For instance, what should happen when the users compile with `-fcx-fortran-rules -fno-cx-limited-range` or `-fcx-limited-range -fno-cx-fortran-rules`? In this patch we are introducing a new option to solve the issue and give a greater flexibility to the user to control the behavior of the compiler when performing multiplication and division of complex floating-point values. `-fcomplex-arihmetic=[full|improved|promoted|basic]` `full`: Implementation of complex division and multiplication using a call to runtime library functions (generally the case, but the BE might sometimes replace the library call if it knows enough about the potential range of the inputs). Overflow and non-finite values are handled by the library implementation. For the case of multiplication overflow will occur in accordance with normal floating-point rules. This is the default value. `improved`: Implementation of complex division using the Smith algorithm at source precision. Smith's algorithm for complex division. See SMITH, R. L. Algorithm 116: Complex division. Commun. ACM 5, 8 (1962). This value offers improved handling for overflow in intermediate calculations, but overflow may occur. NaN and infinite values are not handled in some cases. `promoted`: Implementation of complex division using algebraic formulas at higher precision. Overflow is handled. Non-finite values are handled in some cases. If the target does not have native support for a higher precision data type, the implementation for the complex operation using the Smith algorithm will be used. Overflow may still occur in some cases. NaN and infinite values are not handled. `basic`: Implementation of complex division and multiplication using algebraic formulas at source precision. No special handling to avoid overflow. NaN and infinite values are not handled. `fcx-limited-range` will alias `-fcomplex-arithmetic=basic` `-fcx-fortran-rules` will alias `-fcomplex-arithmetic=improved` `-fno-cx-limited-range` and `-fno-cx-fortran-rules` will alias `-fcomplex-arithmetic=full` The complex division and multiplication will be implemented as follows depending on the option used. <html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 15"> <meta name=Originator content="Microsoft Word 15"> <link rel=File-List href="file:///C:/Users/zahiraam/AppData/Local/Temp/msohtmlclip1/01/clip_filelist.xml">  <link rel=themeData href="file:///C:/Users/zahiraam/AppData/Local/Temp/msohtmlclip1/01/clip_themedata.thmx"> <link rel=colorSchemeMapping href="file:///C:/Users/zahiraam/AppData/Local/Temp/msohtmlclip1/01/clip_colorschememapping.xml">  <style>  </style>  </head> <body lang=EN-US style='tab-interval:.5in;word-wrap:break-word'>  -fcomplex-arithmetic | div | mul -- | -- | -- basic | algebraic form | algebraic form improved | smith's algorithm | algebraic form full | libcall | libcall + nan processing promoted | algebraic form + higher precision | algebraic form  </body> </html>

LebedevRI and others added 6 commits August 29, 2019 14:46

[clangd] Update out-of-date links in readme, NFC.

1a28e11

llvm-svn: 370371

[Clangd] NFC: Added fixme for checking for local/anonymous types for …

6a80145

…extracted parameters llvm-svn: 370372

[PowerPC][NFC] Update fp-int-conversions-direct-moves.ll using script

8b0317a

Also add -ppc-asm-full-reg-names,-ppc-vsr-nums-as-vr. llvm-svn: 370375

pull bot added the ⤵️ pull label Aug 29, 2019

pull bot merged commit 8b0317a into Ericsson:master Aug 29, 2019

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[pull] master from llvm:master #45

[pull] master from llvm:master #45

pull bot commented Aug 29, 2019 •

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[pull] master from llvm:master #45

[pull] master from llvm:master #45

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