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11 Commits

Author SHA1 Message Date
Puyan Lotfi 14b6637edc [MIR-Canon] Adding ISA-Agnostic COPY Folding. 
Transforms the following:

    %vreg1234:gpr32 = COPY %42
    %vreg1235:gpr32 = COPY %vreg1234
    %vreg1236:gpr32 = COPY %vreg1235
    $w0 = COPY %vreg1236

into:

    $w0 = COPY %42

Assuming %42 is also a gpr32

llvm-svn: 330113
 2018-04-16 09:03:03 +00:00
Puyan Lotfi 6ea89b4041 [NFC][MIR-Canon] clang-format cleanup of Mir Canonicalizer Pass. 
llvm-svn: 330111
 2018-04-16 08:12:15 +00:00
Puyan Lotfi 8afc99363b [MIR-Canon] Fixing warnings in Non-assert builds. 
llvm-svn: 329258
 2018-04-05 06:56:44 +00:00
Puyan Lotfi d6f7313c8f [MIR-Canon] Improving performance by switching to named vregs. 
No more skipping thounsands of vregs. Much faster running time.

llvm-svn: 329246
 2018-04-05 00:27:15 +00:00
Puyan Lotfi 26c504fe1e [MIR-Canon] Adding support for multi-def -> user distance reduction. 
llvm-svn: 329243
 2018-04-05 00:08:15 +00:00
Puyan Lotfi 57c4f38c35 [MIR-Canon] Adding support for local idempotent instruction hoisting. 
llvm-svn: 328915
 2018-03-31 05:48:51 +00:00
Michael Zolotukhin c468b648fd Remove redundant includes from lib/CodeGen. 
llvm-svn: 320619
 2017-12-13 21:30:47 +00:00
Benjamin Kramer 51ebcaaf25 Make helpers static. NFC. 
llvm-svn: 318953
 2017-11-24 14:55:41 +00:00
David Blaikie 3f833edc7c Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layering 
This header includes CodeGen headers, and is not, itself, included by
any Target headers, so move it into CodeGen to match the layering of its
implementation.

llvm-svn: 317647
 2017-11-08 01:01:31 +00:00
Craig Topper 666e23b513 [CodeGen] Remove unnecessary semicolons to fix a warning. NFC 
llvm-svn: 317342
 2017-11-03 18:02:46 +00:00
Puyan Lotfi a521c4ac55 mir-canon: First commit. 
mir-canon (MIRCanonicalizerPass) is a pass designed to reorder instructions and
rename operands so that two similar programs will diff more cleanly after being
run through mir-canon than they would otherwise. This project is still a work
in progress and there are ideas still being discussed for improving diff
quality.

M    include/llvm/InitializePasses.h
M    lib/CodeGen/CMakeLists.txt
M    lib/CodeGen/CodeGen.cpp
A    lib/CodeGen/MIRCanonicalizerPass.cpp

llvm-svn: 317285
 2017-11-02 23:37:32 +00:00