Adjust documentation for git migration.

This fixes most references to the paths:
 llvm.org/svn/
 llvm.org/git/
 llvm.org/viewvc/
 github.com/llvm-mirror/
 github.com/llvm-project/
 reviews.llvm.org/diffusion/

to instead point to https://github.com/llvm/llvm-project.

This is *not* a trivial substitution, because additionally, all the
checkout instructions had to be migrated to instruct users on how to
use the monorepo layout, setting LLVM_ENABLE_PROJECTS instead of
checking out various projects into various subdirectories.

I've attempted to not change any scripts here, only documentation. The
scripts will have to be addressed separately.

Additionally, I've deleted one document which appeared to be outdated
and unneeded:
  lldb/docs/building-with-debug-llvm.txt

Differential Revision: https://reviews.llvm.org/D57330

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@352514 91177308-0d34-0410-b5e6-96231b3b80d8

docs/CompileCudaWithLLVM.rst

@@ -143,9 +143,9 @@ device side.
 ----------------------------
 
 In clang, ``math.h`` and ``cmath`` are available and `pass
-<https://github.com/llvm-mirror/test-suite/blob/master/External/CUDA/math_h.cu>`_
+<https://github.com/llvm/llvm-test-suite/blob/master/External/CUDA/math_h.cu>`_
 `tests
-<https://github.com/llvm-mirror/test-suite/blob/master/External/CUDA/cmath.cu>`_
+<https://github.com/llvm/llvm-test-suite/blob/master/External/CUDA/cmath.cu>`_
 adapted from libc++'s test suite.
 
 In nvcc ``math.h`` and ``cmath`` are mostly available.  Versions of ``::foof``

docs/LibFuzzer.rst

@@ -544,7 +544,7 @@ Periodically restart both fuzzers so that they can use each other's findings.
 Currently, there is no simple way to run both fuzzing engines in parallel while sharing the same corpus dir.
 
 You may also use AFL on your target function ``LLVMFuzzerTestOneInput``:
-see an example `here <https://github.com/llvm-mirror/compiler-rt/tree/master/lib/fuzzer/afl>`__.
+see an example `here <https://github.com/llvm/llvm-project/tree/master/compiler-rt/lib/fuzzer/afl>`__.
 
 How good is my fuzzer?
 ----------------------
@@ -741,7 +741,7 @@ Trophies
 .. _AddressSanitizer: http://clang.llvm.org/docs/AddressSanitizer.html
 .. _LeakSanitizer: http://clang.llvm.org/docs/LeakSanitizer.html
 .. _Heartbleed: http://en.wikipedia.org/wiki/Heartbleed
-.. _FuzzerInterface.h: https://github.com/llvm-mirror/compiler-rt/blob/master/lib/fuzzer/FuzzerInterface.h
+.. _FuzzerInterface.h: https://github.com/llvm/llvm-project/blob/master/compiler-rt/lib/fuzzer/FuzzerInterface.h
 .. _3.7.0: http://llvm.org/releases/3.7.0/docs/LibFuzzer.html
 .. _building Clang from trunk: http://clang.llvm.org/get_started.html
 .. _MemorySanitizer: http://clang.llvm.org/docs/MemorySanitizer.html

docs/TestSuiteGuide.md

@@ -27,7 +27,7 @@ Quickstart
 2. Check out the `test-suite` module with:
 
    ```bash
-   % svn co http://llvm.org/svn/llvm-project/test-suite/trunk test-suite
+   % git clone https://github.com/llvm/llvm-test-suite.git test-suite
    ```
 
 3. Create a build directory and use CMake to configure the suite. Use the

docs/TestSuiteMakefileGuide.rst

@@ -14,14 +14,14 @@ the test suite creates temporary files during execution.
 
 To run the test suite, you need to use the following steps:
 
-#. ``cd`` into the ``llvm/projects`` directory in your source tree.
 #. Check out the ``test-suite`` module with:
 
    .. code-block:: bash
 
-       % svn co http://llvm.org/svn/llvm-project/test-suite/trunk test-suite
+       % git clone https://github.com/llvm/llvm-test-suite.git test-suite
 
-   This will get the test suite into ``llvm/projects/test-suite``.
+#. FIXME: these directions are outdated and won't work. Figure out
+   what the correct thing to do is, and write it down here.
 
 #. Configure and build ``llvm``.
 

docs/TestingGuide.rst

@@ -165,15 +165,9 @@ or the :doc:`lit man page <CommandGuide/lit>`.
 Debugging Information tests
 ---------------------------
 
-To run debugging information tests simply checkout the tests inside
-clang/test directory.
-
-.. code-block:: bash
-
-    % cd clang/test
-    % svn co http://llvm.org/svn/llvm-project/debuginfo-tests/trunk debuginfo-tests
-
-These tests are already set up to run as part of clang regression tests.
+To run debugging information tests simply add the ``debuginfo-tests``
+project to your ``LLVM_ENABLE_PROJECTS`` define on the cmake
+command-line.
 
 Regression test structure
 =========================

lib/CodeGen/SelectionDAG/TargetLowering.cpp

@@ -4319,7 +4319,7 @@ bool TargetLowering::expandFP_TO_SINT(SDNode *Node, SDValue &Result,
 
   // Expand f32 -> i64 conversion
   // This algorithm comes from compiler-rt's implementation of fixsfdi:
-  // https://github.com/llvm-mirror/compiler-rt/blob/master/lib/builtins/fixsfdi.c
+  // https://github.com/llvm/llvm-project/blob/master/compiler-rt/lib/builtins/fixsfdi.c
   unsigned SrcEltBits = SrcVT.getScalarSizeInBits();
   EVT IntVT = SrcVT.changeTypeToInteger();
   EVT IntShVT = getShiftAmountTy(IntVT, DAG.getDataLayout());

lib/Target/AMDGPU/AMDGPUISelLowering.h

@@ -211,14 +211,14 @@ public:
 
   const char* getTargetNodeName(unsigned Opcode) const override;
 
-  // FIXME: Turn off MergeConsecutiveStores() before Instruction Selection
-  // for AMDGPU.
-  // A commit ( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319036
-  // 91177308-0d34-0410-b5e6-96231b3b80d8 ) turned on
-  // MergeConsecutiveStores() before Instruction Selection for all targets.
-  // Enough AMDGPU compiles go into an infinite loop ( MergeConsecutiveStores()
-  // merges two stores; LegalizeStoreOps() un-merges; MergeConsecutiveStores()
-  // re-merges, etc. ) to warrant turning it off for now.
+  // FIXME: Turn off MergeConsecutiveStores() before Instruction Selection for
+  // AMDGPU.  Commit r319036,
+  // (https://github.com/llvm/llvm-project/commit/db77e57ea86d941a4262ef60261692f4cb6893e6)
+  // turned on MergeConsecutiveStores() before Instruction Selection for all
+  // targets.  Enough AMDGPU compiles go into an infinite loop (
+  // MergeConsecutiveStores() merges two stores; LegalizeStoreOps() un-merges;
+  // MergeConsecutiveStores() re-merges, etc. ) to warrant turning it off for
+  // now.
   bool mergeStoresAfterLegalization() const override { return false; }
 
   bool isFsqrtCheap(SDValue Operand, SelectionDAG &DAG) const override {

test/CodeGen/PowerPC/pr24546.ll

@@ -56,7 +56,7 @@ attributes #3 = { nounwind }
 !llvm.module.flags = !{!29, !30}
 !llvm.ident = !{!31}
 
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (git://github.com/llvm-mirror/clang.git e0848b6353721eb1b278a5bbea257bbf6316251e) (git://github.com/llvm-mirror/llvm.git 8724a428dfd5e78d7865bb01783708e83f9ed128)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !23)
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !23)
 !1 = !DIFile(filename: "testcase.i", directory: "/tmp/glibc.build")
 !2 = !{}
 !3 = !{!4}
@@ -86,7 +86,7 @@ attributes #3 = { nounwind }
 !28 = !DISubrange(count: 23)
 !29 = !{i32 2, !"Dwarf Version", i32 4}
 !30 = !{i32 2, !"Debug Info Version", i32 3}
-!31 = !{!"clang version 3.8.0 (git://github.com/llvm-mirror/clang.git e0848b6353721eb1b278a5bbea257bbf6316251e) (git://github.com/llvm-mirror/llvm.git 8724a428dfd5e78d7865bb01783708e83f9ed128)"}
+!31 = !{!"clang version 3.8.0"}
 !32 = !DILocation(line: 21, column: 32, scope: !33)
 !33 = distinct !DILexicalBlock(scope: !6, file: !1, line: 21, column: 6)
 !34 = !DILocation(line: 22, column: 15, scope: !35)

utils/lit/setup.py

@@ -52,8 +52,8 @@ Command Guide: http://llvm.org/cmds/lit.html.
 Source
 ======
 
-The *lit* source is available as part of LLVM, in the LLVM SVN repository:
-http://llvm.org/svn/llvm-project/llvm/trunk/utils/lit.
+The *lit* source is available as part of LLVM, in the LLVM source repository:
+https://github.com/llvm/llvm-project/tree/master/llvm/utils/lit
 """,
 
     classifiers=[