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Simon Pilgrim 858303b827 [SelectionDAG] Add FoldBUILD_VECTOR to simplify new BUILD_VECTOR nodes 
Similar to FoldCONCAT_VECTORS, this patch adds FoldBUILD_VECTOR to simplify cases that can avoid the creation of the BUILD_VECTOR - if all the operands are UNDEF or if the BUILD_VECTOR simplifies to a copy.

This exposed an assumption in some AMDGPU code that getBuildVector was guaranteed to be a BUILD_VECTOR node that I've tried to handle.	
	
Differential Revision: https://reviews.llvm.org/D53760

llvm-svn: 345578
 		2018-10-30 10:32:11 +00:00
..
Analysis [AliasSetTracker] Cleanup addPointer interface. [NFCI] 2018-10-29 22:25:59 +00:00
AsmParser Emit template type and value parameter DIEs for template variables. 2018-10-03 18:44:53 +00:00
BinaryFormat Revert r343317 2018-09-28 17:01:50 +00:00
Bitcode Revert "[ThinLTO] Fix a crash in lazy loading of Metadata" 2018-10-23 23:00:29 +00:00
CodeGen [SelectionDAG] Add FoldBUILD_VECTOR to simplify new BUILD_VECTOR nodes 2018-10-30 10:32:11 +00:00
DebugInfo [DWARF][NFC] Refactor range list extraction and dumping 2018-10-29 22:16:47 +00:00
Demangle Port libcxxabi r344607 into llvm 2018-10-17 18:50:25 +00:00
ExecutionEngine [ORC] Re-apply r345077 with fixes to remove ambiguity in lookup calls. 2018-10-23 23:01:39 +00:00
FuzzMutate [New PM] Introducing PassInstrumentation framework 2018-09-20 17:08:45 +00:00
Fuzzer
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IR [Intrinsic] Signed and Unsigned Saturation Subtraction Intirnsics 2018-10-29 16:54:37 +00:00
IRReader
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LTO [NewPM] teach -passes= to emit meaningful error messages 2018-10-17 10:36:23 +00:00
LineEditor
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Linker llvm-link: Improve diagnostic for module-level metadata mismatch 2018-10-09 01:17:27 +00:00
MC [ARM64][Windows] MCLayer support for exception handling 2018-10-27 06:13:06 +00:00
Object llvm-ar: Darwin archive format fixes. 2018-10-10 21:07:02 +00:00
ObjectYAML [AMDGPU] Defined gfx909 Raven Ridge 2 2018-10-24 08:14:07 +00:00
OptRemarks Reland: [OptRemarks] Add library for parsing optimization remarks 2018-10-10 18:43:42 +00:00
Option [opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>" 2018-10-10 00:15:31 +00:00
Passes Revert "[PassManager/Sanitizer] Enable usage of ported AddressSanitizer passes with -fsanitize=address" 2018-10-26 22:51:51 +00:00
ProfileData Support for remapping profile data when symbols change, for sample-based 2018-10-10 21:31:01 +00:00
Support Add parens to fix incorrect assert check. 2018-10-29 21:21:55 +00:00
TableGen [TableGen] fix assert in !cast when used out of definition in a multiclass 2018-10-10 10:52:57 +00:00
Target [SelectionDAG] Add FoldBUILD_VECTOR to simplify new BUILD_VECTOR nodes 2018-10-30 10:32:11 +00:00
Testing Fix error with SmallString implicit conversion. 2018-09-06 22:47:32 +00:00
ToolDrivers [opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>" 2018-10-10 00:15:31 +00:00
Transforms [HotColdSplitting] Allow outlining single-block cold regions 2018-10-29 19:15:39 +00:00
WindowsManifest
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XRay [XRay] Use std::errc::invalid_argument instead of std::errc::bad_message 2018-10-26 18:25:27 +00:00
CMakeLists.txt Reland: [OptRemarks] Add library for parsing optimization remarks 2018-10-10 18:43:42 +00:00
LLVMBuild.txt Reland: [OptRemarks] Add library for parsing optimization remarks 2018-10-10 18:43:42 +00:00