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Craig Topper 7bb433c87b [X86] Use MOVSX by default instead of CBW to extend i8 to AX for i8 sdivrem. 
We can use a MOVSX16 here then rely on FixupBWInst to change to
MOVSX32 if the upper bits are dead. With a special case to
not promote if it could be turned into CBW.

Then we can rely on X86MCInstLower to turn the MOVSX into CBW
very late if register allocation worked out.

Using MOVSX gives an opportunity to use the MOVSX as a both a
copy and a sign extend since the input and output register aren't
tied together.

Differential Revision: https://reviews.llvm.org/D67192

llvm-svn: 371243
 		2019-09-06 19:17:02 +00:00
clang [LifetimeAnalysis] don't use raw string literals in macros 2019-09-06 19:15:02 +00:00
clang-tools-extra [clangd] Use override keyword to override the base class method, NFC 2019-09-06 10:24:39 +00:00
compiler-rt Revert "Revert "[builtins] Rounding mode support for addxf3/subxf3"" 2019-09-05 01:05:05 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libclc Revert "Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC" 2019-08-05 17:23:23 +00:00
libcxx Add gdb pretty printers for a wide variety of libc++ data structures (take 2). 2019-09-05 21:35:05 +00:00
libcxxabi Provide a meaningful diagnostic when LLVM_PATH doesn't point to a directory 2019-08-19 23:51:26 +00:00
libunwind [runtimes] Don't depend on libpthread on Android 2019-07-22 20:41:03 +00:00
lld [ELF] Replace error() with errorOrWarn() for the ASSERT command 2019-09-06 16:30:22 +00:00
lldb [lldb] Small optimization of FormatMap::Delete and FormatMap::Get 2019-09-06 17:52:27 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [X86] Use MOVSX by default instead of CBW to extend i8 to AX for i8 sdivrem. 2019-09-06 19:17:02 +00:00
openmp [OpenMP] Change initialization of __kmp_global 2019-09-04 17:47:37 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [DependenceInfo] Compute WAR dependence info using ISL kills. NFC. 2019-08-29 18:55:55 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.git-blame-ignore-revs Add LLDB reformatting to .git-blame-ignore-revs 2019-09-04 09:31:55 +00:00
.gitignore Add a newline at the end of the file 2019-09-04 06:33:46 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.