Commit Graph

9 Commits

Author SHA1 Message Date
Craig Topper 3acd890efb [X86] Allow masks with more than 6 bits set on the x << (y & mask) optimization for the 64-bit memory shifts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308657 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-20 19:29:58 +00:00
Craig Topper f64188b1bf [X86] Add test case to demonstrate that we don't allow masks wider than 6 bits in the (shift x, (and y, mask)) patterns for the 64-bit memory form.
We allow wider than 5 bits in the 16 and 32 bit store forms. And we allow wider than 6 bits on the 64-bit regsiter form.:w

I'm assuming this was a mistake made back in r148024.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308656 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-20 19:29:56 +00:00
Craig Topper 8189a89625 [X86] Regenerate shift-and.ll and shift-bmi2.ll using update_llc_test_checks.py.
I've stripped the checks for 64-bit types in 32-bit mode to match the existing tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308589 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-20 06:19:53 +00:00
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
Stephen Lin 8b2b8a1835 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00
Evan Cheng afb24cecff Add test case for r160387
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160389 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17 19:40:05 +00:00
Benjamin Kramer fb418bab97 X86: Generalize the x << (y & const) optimization to also catch masks with more set bits set than 31 or 63.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148024 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12 12:41:34 +00:00
Dan Gohman 36a0947820 Eliminate more uses of llvm-as and llvm-dis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 23:54:48 +00:00
Evan Cheng eb9f89287e Transform (x << (y&31)) -> (x << y). This takes advantage of the fact x86 shift instructions 2nd operand (shift count) is limited to 0 to 31 (or 63 in the x86-64 case).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55558 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-30 02:03:58 +00:00