Ahmed Bougacha 5898fc70ec [ARM] Re-re-apply VLD1/VST1 base-update combine. ... This re-applies r223862, r224198, r224203, and r224754, which were reverted in r228129 because they exposed Clang misalignment problems when self-hosting. The combine caused the crashes because we turned ISD::LOAD/STORE nodes to ARMISD::VLD1/VST1_UPD nodes. When selecting addressing modes, we were very lax for the former, and only emitted the alignment operand (as in "[r1:128]") when it was larger than the standard alignment of the memory type. However, for ARMISD nodes, we just used the MMO alignment, no matter what. In our case, we turned ISD nodes to ARMISD nodes, and this caused the alignment operands to start being emitted. And that's how we exposed alignment problems that were ignored before (but I believe would have been caught with SCTRL.A==1?). To fix this, we can just mirror the hack done for ISD nodes: only take into account the MMO alignment when the access is overaligned. Original commit message: We used to only combine intrinsics, and turn them into VLD1_UPD/VST1_UPD when the base pointer is incremented after the load/store. We can do the same thing for generic load/stores. Note that we can only combine the first load/store+adds pair in a sequence (as might be generated for a v16f32 load for instance), because other combines turn the base pointer addition chain (each computing the address of the next load, from the address of the last load) into independent additions (common base pointer + this load's offset). rdar://19717869, rdar://14062261. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229932 91177308-0d34-0410-b5e6-96231b3b80d8		2015-02-19 23:52:41 +00:00
..
Analysis	[LoopAccesses] Add -analyze support	2015-02-19 19:15:19 +00:00
Assembler	IR: Drop scope from MDTemplateParameter	2015-02-19 00:37:21 +00:00
Bindings
Bitcode
BugPoint
CodeGen	[ARM] Re-re-apply VLD1/VST1 base-update combine.	2015-02-19 23:52:41 +00:00
DebugInfo	DebugInfo: Match Name and DisplayName in testcase	2015-02-19 23:48:17 +00:00
ExecutionEngine	Make frem.ll flush after calling printf.	2015-02-18 19:32:28 +00:00
Feature
FileCheck
Instrumentation
Integer
JitListener
Linker
LTO	Introduce Target::createNullTargetStreamer and use it from IRObjectFile.	2015-02-19 00:45:02 +00:00
MC	MC: Allow multiple comma-separated expressions on the .uleb128 directive.	2015-02-19 20:24:04 +00:00
Object	[Object] Support reading 64-bit MIPS ELF archives	2015-02-17 18:54:22 +00:00
Other
SymbolRewriter
TableGen
tools	[Objdump] Fixing crash when printing symbols in ELF sections with special types.	2015-02-18 23:00:22 +00:00
Transforms	[ARM] Re-re-apply VLD1/VST1 base-update combine.	2015-02-19 23:52:41 +00:00
Unit
Verifier	Implement invoke statepoint verification.	2015-02-19 11:28:47 +00:00
YAMLParser	[Support][YAML] Add support for accessing tags and tag handle substitution.	2013-10-18 22:38:04 +00:00
.clang-format
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh