Sanjay Patel a8eaa856b6 [InstCombine] fold lshr (sext X), C1 --> zext (lshr X, C2) ... This was discussed in D33338. We have larger pattern-matching ending in a truncate that we can reduce or remove by handling these smaller patterns first. Further motivation is that narrower shift ops are easier for value tracking and zext is better than sext. http://rise4fun.com/Alive/rhh Name: boolshift %sext = sext i1 %x to i8 %r = lshr i8 %sext, 7 => %r = zext i1 %x to i8 Name: noboolshift %sext = sext i3 %x to i8 %r = lshr i8 %sext, 7 => %sh = lshr i3 %x, 2 %r = zext i3 %sh to i8 Differential Revision: https://reviews.llvm.org/D33879 llvm-svn: 304939		2017-06-07 20:32:08 +00:00
..
Analysis	[LVI Printer] Rely on the LVI analysis functions rather than the LVI cache	2017-06-06 19:25:31 +00:00
Assembler
Bindings	[LLVM-C] [OCaml] Expose Type::subtypes.	2017-06-05 11:49:52 +00:00
Bitcode	[X86] Replace 'REQUIRES: x86' in tests with 'REQUIRES: x86-registered-target' which seems to be the correct way to make them run on an x86 build.	2017-06-04 08:21:58 +00:00
BugPoint
CodeGen	[Hexagon] Generate 'inbounds' GEPs in HexagonCommonGEP	2017-06-07 20:04:33 +00:00
DebugInfo	[DWARF] Adding support for the DWARF v5 string offsets table (consumer/reader part only).	2017-06-06 01:22:34 +00:00
Examples
ExecutionEngine	[RuntimeDyld, PowerPC] Fix check for external symbols when detecting reloction overflow	2017-05-23 14:51:18 +00:00
Feature	Add constrained intrinsics for some libm-equivalent operations	2017-05-25 21:31:00 +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	Revert "[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet."	2017-06-05 07:35:52 +00:00
Integer
JitListener
LibDriver
Linker	[Linker] Remove llc usage from link-arm-and-thumb.ll test case.	2017-06-07 09:59:22 +00:00
LTO	[Linker] Remove warning when linking ARM and Thumb IR modules.	2017-06-07 09:17:01 +00:00
MC	[AMDGPU][MC] Corrected error message for s_waitcnt helpers	2017-06-07 16:08:02 +00:00
Object	test: fix hexagon build	2017-06-05 21:45:25 +00:00
ObjectYAML
Other	[PM/ThinLTO] Port the ThinLTO pipeline (both components) to the new PM.	2017-06-01 11:39:39 +00:00
SymbolRewriter
TableGen	[globalisel][tablegen] Add support for (set $dst, 1) and test X86's OptForSize predicate.	2017-05-23 19:33:16 +00:00
ThinLTO/X86	Move summary dead stripping before regular LTO.	2017-06-02 18:24:17 +00:00
tools	Introduce -brief command line option to llvm-dwarfdump	2017-06-06 23:28:45 +00:00
Transforms	[InstCombine] fold lshr (sext X), C1 --> zext (lshr X, C2)	2017-06-07 20:32:08 +00:00
Unit
Verifier	Add constrained intrinsics for some libm-equivalent operations	2017-05-25 21:31:00 +00:00
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg	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
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
TestRunner.sh