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7 Commits

Author SHA1 Message Date
Anton Korobeynikov
bb91cffa5a [MSP430] Optimize 'shl x, 8[+ N] -> swpb(zext(x)) [<< N]' for i16
Perform additional simplification to reduce shift amount.

Patch by Kristina Bessonova!

Differential Revision: https://reviews.llvm.org/D56016

llvm-svn: 350712
2019-01-09 13:03:01 +00:00
Anton Korobeynikov
da54467810 [MSP430] Optimize srl/sra in case of A >> (8 + N)
There is no variable-length shifts on MSP430. Therefore
"eat" 8 bits of shift via bswap & ext.

Path by Kristina Bessonova!

Differential Revision: https://reviews.llvm.org/D54623

llvm-svn: 347187
2018-11-19 10:43:02 +00:00
Anton Korobeynikov
dd18739c8d [MSP430] Add MC layer
Reapply r346374 with the fixes for modules build.

Original summary:

This change implements assembler parser, code emitter, ELF object writer
and disassembler for the MSP430 ISA.  Also, more instruction forms are added
to the target description.

Patch by Michael Skvortsov!

llvm-svn: 346948
2018-11-15 12:29:43 +00:00
Davide Italiano
9ce1136789 Revert "[MSP430] Add MC layer"
This commit broke the module buildbots.
Error:

lib/Target/MSP430/MSP430GenAsmMatcher.inc:1027:1: error: redundant
namespace 'llvm' [-Wmodules-import-nested-redundant]
^

llvm-svn: 346410
2018-11-08 16:21:29 +00:00
Anton Korobeynikov
75d19fd3ca [MSP430] Add MC layer
Summary:
This change implements assembler parser, code emitter, ELF object writer
and disassembler for the MSP430 ISA.  Also, more instruction forms are added
to the target description.

Reviewers: asl

Reviewed By: asl

Subscribers: pftbest, krisb, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D53661

llvm-svn: 346374
2018-11-08 00:03:45 +00:00
Stephen Lin
7e501cf4c3 Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
This update was done with the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc.*debug" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP
      done
      sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
      sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
      sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
      sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
      mv $TEMP $NAME
    fi
  done

llvm-svn: 186280
2013-07-14 06:24:09 +00:00
Anton Korobeynikov
953a94cb69 Add variable-width shifts for MSP430
llvm-svn: 93468
2010-01-14 22:09:38 +00:00