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Sam Parker 42350cd893 [ARM][MVE] Tail Predicate IsSafeToRemove 
Introduce a method to walk through use-def chains to decide whether
it's possible to remove a given instruction and its users. These
instructions are then stored in a set until the end of the transform
when they're erased. This is now used to perform checks on the
iteration count (LoopDec chain), element count (VCTP chain) and the
possibly redundant iteration count.

As well as being able to remove chains of instructions, we know also
check that the sub feeding the vctp is producing the expected value.

Differential Revision: https://reviews.llvm.org/D71837
 		2020-01-17 13:19:14 +00:00
..
Analysis [IR] Mark memset.* intrinsics as IntrWriteMem. 2020-01-16 10:35:46 +00:00
Assembler Revert "[Support] make report_fatal_error `abort` instead of `exit`" 2020-01-15 17:52:25 -08:00
Bindings
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Bitcode Revert "[Support] make report_fatal_error `abort` instead of `exit`" 2020-01-15 17:52:25 -08:00
BugPoint Migrate function attribute "no-frame-pointer-elim-non-leaf" to "frame-pointer"="non-leaf" as cleanups after D56351 2019-12-24 16:05:15 -08:00
CodeGen [ARM][MVE] Tail Predicate IsSafeToRemove 2020-01-17 13:19:14 +00:00
DebugInfo Revert "[Support] make report_fatal_error `abort` instead of `exit`" 2020-01-15 17:52:25 -08:00
Demangle
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Examples Re-apply "[Examples] Add IRTransformations directory to examples." 2020-01-04 15:47:23 +00:00
ExecutionEngine [ORC] Fix argv handling in runAsMain / lli. 2020-01-11 13:03:38 -08:00
Feature Mark the test/Feature/load_extension.ll test as unsupported on Darwin. 2020-01-10 20:18:36 -08:00
FileCheck
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Instrumentation Migrate function attribute "no-frame-pointer-elim"="false" to "frame-pointer"="none" as cleanups after D56351 2019-12-24 16:27:51 -08:00
Integer
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JitListener Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351 2019-12-24 15:57:33 -08:00
LTO Revert "[Support] make report_fatal_error `abort` instead of `exit`" 2020-01-15 17:52:25 -08:00
Linker Migrate function attribute "no-frame-pointer-elim"="false" to "frame-pointer"="none" as cleanups after D56351 2019-12-24 16:27:51 -08:00
MC [AsmParser] Make generic directives and aliases case insensitive. 2020-01-17 11:02:56 +00:00
MachineVerifier Revert "[Support] make report_fatal_error `abort` instead of `exit`" 2020-01-15 17:52:25 -08:00
Object Revert "[Support] make report_fatal_error `abort` instead of `exit`" 2020-01-15 17:52:25 -08:00
ObjectYAML
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Other [VectorUtils] Rework the Vector Function Database (VFDatabase). 2020-01-16 15:08:26 +00:00
Reduce
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SafepointIRVerifier
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Support
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SymbolRewriter
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TableGen TableGen/GlobalISel: Fix srcvalue inputs 2020-01-16 13:49:43 -05:00
ThinLTO/X86 [ThinLTO] Always import constants 2020-01-15 19:29:01 +03:00
Transforms [BasicBlock] fix looping in getPostdominatingDeoptimizeCall 2020-01-17 15:40:02 +03:00
Unit
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Verifier [AArch64] Add function attribute "patchable-function-entry" to add NOPs at function entry 2020-01-10 09:55:51 -08:00
YAMLParser
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tools [xray] add --no-demangle cli opt for llvm-xray extract to output mangled names 2020-01-16 16:37:00 -08:00
.clang-format
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CMakeLists.txt Use llvm_canonicalize_cmake_booleans where intended 2020-01-03 15:42:35 +01:00
TestRunner.sh
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lit.cfg.py Fix several issues with compiler extensions 2020-01-10 10:10:20 +01:00
lit.site.cfg.py.in Use llvm_canonicalize_cmake_booleans where intended 2020-01-03 15:42:35 +01:00