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Jeremy Morse a06b163d5c [DebugInfo] Don't drop dbg.value's of nullptr

Currently, dbg.value's of "nullptr" are dropped when entering a SelectionDAG --
apparently just because of an oversight when recognising Values that are
constant (see PR39787). This patch adds ConstantPointerNull to the list of
constants that can be turned into DBG_VALUEs.

The matter of what bit-value a null pointer constant in LLVM has was raised
in this mailing list thread:

  http://lists.llvm.org/pipermail/llvm-dev/2018-December/128234.html

Where it transpires LLVM relies on (IR) null pointers being zero valued,
thus I've baked this assumption into the patch.

Differential Revision: https://reviews.llvm.org/D55227

llvm-svn: 348753

2018-12-10 12:04:08 +00:00

clang

[OpenCL][CodeGen] Fix replacing memcpy with addrspacecast

2018-12-10 12:03:00 +00:00

clang-tools-extra

[Documentation] Alphabetical order in new checks list.

2018-12-08 00:07:34 +00:00

compiler-rt

Add data types needed for md2(3)/NetBSD interceptors

2018-12-10 09:09:18 +00:00

debuginfo-tests

Set config.lit_tools_dir, which is needed by lit.llvm.initialize.

2018-11-06 21:54:27 +00:00

libclc

travis: Add cmake build

2018-11-27 16:07:21 +00:00

libcxx

Update a couple of vector<bool> tests that were testing libc++-specific bahavior. Thanks to Andrey Maksimov for the catch.

2018-12-07 22:16:26 +00:00

libcxxabi

[libcxx] Remove bad_array_length

2018-11-29 19:44:57 +00:00

libunwind

[CMake] Passthrough CFLAGS when checking the compiler-rt path

2018-11-14 00:09:26 +00:00

lld

[LLD][ELF] - Support discarding the .dynamic section.

2018-12-10 09:24:49 +00:00

lldb

Revert a hunk that shouldn't have been included in the last commit.

2018-12-09 02:38:04 +00:00

llgo

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llvm

[DebugInfo] Don't drop dbg.value's of nullptr

2018-12-10 12:04:08 +00:00

openmp

Add OpenBSD support to OpenMP

2018-12-09 16:46:48 +00:00

parallel-libs

…

polly

[CMake] Fix generation of exported targets in build directory

2018-11-06 15:18:17 +00:00

README.md

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README.md

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