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John Brawn cd73fe8989 [BasicAA] Use PhiValuesAnalysis if available when handling phi alias 
By using PhiValuesAnalysis we can get all the values reachable from a phi, so
we can be more precise instead of giving up when a phi has phi operands. We
can't make BaseicAA directly use PhiValuesAnalysis though, as the user of
BasicAA may modify the function in ways that PhiValuesAnalysis can't cope with.

For this optional usage to work correctly BasicAAWrapperPass now needs to be not
marked as CFG-only (i.e. it is now invalidated even when CFG is preserved) due
to how the legacy pass manager handles dependent passes being invalidated,
namely the depending pass still has a pointer to the now-dead dependent pass.

Differential Revision: https://reviews.llvm.org/D44564

llvm-svn: 338242
 		2018-07-30 11:52:08 +00:00
clang [mips64][clang] Provide the signext attribute for i32 return values 2018-07-30 10:44:46 +00:00
clang-tools-extra [clangd] Fix a comment. NFC 2018-07-30 11:46:25 +00:00
compiler-rt [XRay][compiler-rt] FDR Mode: Use mmap instead of internal allocator 2018-07-30 05:56:42 +00:00
debuginfo-tests [DebugInfo] LowerDbgDeclare: Add derefs when handling CallInst users 2018-07-26 20:56:53 +00:00
libclc atom: Use volatile pointers for cl_khr_{global,local}_int32_{base,extended}_atomics 2018-06-21 19:27:39 +00:00
libcxx [libc++] Exclude posix_l/strtonum fallback inclusion for newlib > 2.4 2018-07-27 20:02:58 +00:00
libcxxabi [demangler] Fix an oss-fuzz bug from r338138 2018-07-28 04:06:30 +00:00
libunwind [CMake] Include CMakeDependentOption in libunwind 2018-07-24 23:42:51 +00:00
lld [ELF][HEXAGON] Add R_HEX_32_6_X and R_HEX_12_X 2018-07-29 11:59:38 +00:00
lldb Remove friend class declarations from DWARFUnit and DWARFCompileUnit 2018-07-29 19:32:36 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm [BasicAA] Use PhiValuesAnalysis if available when handling phi alias 2018-07-30 11:52:08 +00:00
openmp [OMPT] Fix OMPT callbacks for the taskloop construct and add testcase 2018-07-27 18:13:24 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [test] Remove non-JSPON comments in JSCOP file. NFC. 2018-07-28 01:11:45 +00:00
README.md
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README.md

Low Level Virtual Machine (LLVM)

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