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Max Kazantsev 80bc4a5554 [IndVars] Canonicalize comparisons between non-negative values and indvars 
-If there is a IndVar which is known to be non-negative, and there is a value which is also non-negative,
then signed and unsigned comparisons between them produce the same result. Both of those can be
seen in the same loop. To allow other optimizations to simplify them, we turn all instructions like

  %c = icmp slt i32 %iv, %b
to

  %c = icmp ult i32 %iv, %b

if both %iv and %b are known to be non-negative.

Differential Revision: https://reviews.llvm.org/D34979

llvm-svn: 307126
 		2017-07-05 06:38:49 +00:00
..
Analysis [IndVars] Canonicalize comparisons between non-negative values and indvars 2017-07-05 06:38:49 +00:00
Assembler Align definition of DW_OP_plus with DWARF spec [3/3] 2017-06-14 13:14:38 +00:00
Bindings [LLVM-C] [OCaml] Expose Type::subtypes. 2017-06-05 11:49:52 +00:00
Bitcode Bitcode: Write the irsymtab to disk. 2017-06-27 23:50:11 +00:00
BugPoint bugpoint: disabling symbolication of bugpoint-executed programs 2017-06-09 07:29:03 +00:00
CodeGen Add the missing triple to the test case added as part of r307120. 2017-07-05 05:14:43 +00:00
DebugInfo [llvm-pdbutil] Output the symbol offset when dumping. 2017-06-30 21:35:00 +00:00
Examples
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ExecutionEngine [RuntimeDyld, PowerPC] Fix check for external symbols when detecting reloction overflow 2017-05-23 14:51:18 +00:00
Feature Remove the BBVectorize pass. 2017-06-30 07:09:08 +00:00
FileCheck [FileCheck] Don't scan past the closing CHECK-DAG for CHECK-NOT inside CHECK-DAG 2017-06-07 12:06:45 +00:00
Instrumentation fix trivial typos, NFC 2017-07-01 07:12:15 +00:00
Integer
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JitListener
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LTO [LTO] Remove values from non-prevailing comdats 2017-06-30 14:03:24 +00:00
LibDriver [llvm-ar] Make llvm-lib behave more like the MSVC archiver 2017-06-12 19:45:35 +00:00
Linker [Linker] Remove llc usage from link-arm-and-thumb.ll test case. 2017-06-07 09:59:22 +00:00
MC [AVR] Remove a bunch of now-obselete tests 2017-07-01 05:23:13 +00:00
Object [YAML] - Teach yaml2obj/obj2yaml to work with numeric relocation values. 2017-06-30 10:31:03 +00:00
ObjectYAML [WebAssembly] Add data size and alignement to linking section 2017-06-27 20:27:59 +00:00
Other Revert "[lit] Clean output directories before running tests." 2017-06-30 16:05:03 +00:00
SafepointIRVerifier [SafepointIRVerifier] Add verifier pass for finding GC relocation bugs 2017-07-05 01:16:29 +00:00
SymbolRewriter
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TableGen [globalisel][tablegen] Partially fix compile-time regressions by converting matcher to state-machine(s) 2017-07-04 14:35:06 +00:00
ThinLTO/X86 Bitcode: Write the irsymtab to disk. 2017-06-27 23:50:11 +00:00
Transforms [IndVars] Canonicalize comparisons between non-negative values and indvars 2017-07-05 06:38:49 +00:00
Unit Revert "[lit] Clean output directories before running tests." 2017-06-30 16:05:03 +00:00
Verifier [Atomics] Rename and change prototype for atomic memcpy intrinsic 2017-06-16 14:43:59 +00:00
YAMLParser
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tools Fix bug in symbol generation for resource COFF 2017-06-30 18:16:35 +00:00
.clang-format
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CMakeLists.txt Rename llvm-pdbdump -> llvm-pdbutil. 2017-06-09 20:46:17 +00:00
TestRunner.sh
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lit.cfg [llvm-pdbdump] Don't fail on PDBs with no ID stream. 2017-06-12 21:34:53 +00:00
lit.site.cfg.in Introduce the new feature "abi-breaking-checks" to satisfy -reverse-iterate in llvm/test/Transforms/Util/PredicateInfo/ 2017-06-07 00:22:52 +00:00