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Craig Topper 9d88bde411 [X86FixupLEAs] Turn optIncDec into a generic two address LEA optimizer. Support LEA64_32r properly. 
INC/DEC is really a special case of a more generic issue. We should also turn leas into add reg/reg or add reg/imm regardless of the slow lea flags.

This also supports LEA64_32 which has 64 bit input registers and 32 bit output registers. So we need to convert the 64 bit inputs to their 32 bit equivalents to check if they are equal to base reg.

One thing to note, the original code preserved the kill flags by adding operands to the new instruction instead of using addReg. But I think tied operands aren't supposed to have the kill flag set. I dropped the kill flags, but I could probably try to preserve it in the add reg/reg case if we think its important. Not sure which operand its supposed to go on for the LEA64_32r instruction due to the super reg implicit uses. Though I'm also not sure those are needed since they were probably just created by an INSERT_SUBREG from a 32-bit input.

Differential Revision: https://reviews.llvm.org/D61472

llvm-svn: 361691
2019-05-25 06:17:47 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [OCaml] Update api to account for FNeg and CallBr instructions 2019-04-16 15:00:19 +00:00
cmake Revert "[Analysis] Link library dependencies to Analysis plugins" 2019-05-25 00:50:03 +00:00
docs Clarify how musttail can be used to create forwarding thunks 2019-05-24 01:45:47 +00:00
examples Add a HowToUseLLJIT example project. 2019-05-22 21:38:41 +00:00
include Revert r361644, "[AMDGPU] Divergence driven ISel. Assign register class for cross block values according to the divergence." 2019-05-25 01:52:38 +00:00
lib [X86FixupLEAs] Turn optIncDec into a generic two address LEA optimizer. Support LEA64_32r properly. 2019-05-25 06:17:47 +00:00
projects Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
resources
runtimes [CMake] Fix issues building runtimes 2019-05-24 16:21:38 +00:00
test [X86FixupLEAs] Turn optIncDec into a generic two address LEA optimizer. Support LEA64_32r properly. 2019-05-25 06:17:47 +00:00
tools [dwarfdump] Add flag to limit the number of parents DIEs 2019-05-24 21:11:28 +00:00
unittests Revert [LOOPINFO] Extend Loop object to add utilities to get the loop bounds, step, induction variable, and guard branch. 2019-05-23 20:53:05 +00:00
utils Rename clangToolingRefactor to clangToolingRefactoring for consistency with its directory 2019-05-25 00:27:19 +00:00
.arcconfig
.clang-format
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore [clangd] Store index in '.clangd/index' instead of '.clangd-index' 2019-02-20 19:08:06 +00:00
CMakeLists.txt build: enable CMake policy 0077 2019-05-21 20:28:32 +00:00
CODE_OWNERS.TXT [llvm-mca] Move llvm-mca library to llvm/lib/MCA. 2018-12-17 08:08:31 +00:00
configure
CREDITS.TXT add Qiu Chaofan (qiucf@cn.ibm.com) to the CREDITS.txt 2019-04-23 02:37:48 +00:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
README.txt Testing commit access 2019-02-19 20:38:51 +00:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

The LLVM Compiler Infrastructure
================================

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