Commit Graph

13 Commits

Author SHA1 Message Date
Craig Topper 36bd247f64 [X86] Add a target-specific DAG combine to combine extract_subvector from all zero/one build_vectors.
llvm-svn: 311841
2017-08-27 05:39:57 +00:00
Dinar Temirbulatov aead31a36f [X86] SET0 to use XMM registers where possible PR26018 PR32862
Differential Revision: https://reviews.llvm.org/D35839

llvm-svn: 309298
2017-07-27 17:47:01 +00:00
Simon Pilgrim d7518896ff [X86][SSE] Fix domains for VZEXT_LOAD type instructions
Add the missing domain equivalences for movss, movsd, movd and movq zero extending loading instructions.

Differential Revision: https://reviews.llvm.org/D27684

llvm-svn: 289825
2016-12-15 16:05:29 +00:00
Simon Pilgrim 8893bd95f0 [X86][SSE] Consistently set MOVD/MOVQ load/store/move instructions to integer domain
We are being inconsistent with these instructions (and all their variants.....) with a random mix of them using the default float domain.

Differential Revision: https://reviews.llvm.org/D27419

llvm-svn: 288902
2016-12-07 12:10:49 +00:00
Craig Topper d788498411 [X86] No need to avoid selecting AVX_SET0 for 256-bit integer types when only AVX1 is supported. AVX_SET0 just expands to 256-bit VXORPS which is legal in AVX1.
llvm-svn: 268871
2016-05-08 07:10:47 +00:00
James Y Knight 7c905063c5 Make utils/update_llc_test_checks.py note that the assertions are
autogenerated.

Also update existing test cases which appear to be generated by it and
weren't modified (other than addition of the header) by rerunning it.

llvm-svn: 253917
2015-11-23 21:33:58 +00:00
Sanjay Patel 54e39fd698 use update_llc_test_checks.py to tighten checking
remove redundant and unnecessary test parameters

llvm-svn: 234022
2015-04-03 17:02:48 +00:00
Sanjay Patel 30d589536a [X86, AVX] fix zero-extending integer operand load patterns to use integer instructions
This is a follow-on to r233704 and another partial fix for PR22685:
https://llvm.org/bugs/show_bug.cgi?id=22685

llvm-svn: 233724
2015-03-31 18:43:43 +00:00
Sanjay Patel 2ae9943881 [X86, AVX] try to lowerVectorShuffleAsElementInsertion() for all 256-bit vector sub-types
I suggested this change in D7898 (http://llvm.org/viewvc/llvm-project?view=revision&revision=231354)

It improves the v4i64 case although not optimally. This AVX codegen:

  vmovq {{.*#+}} xmm0 = mem[0],zero
  vxorpd %ymm1, %ymm1, %ymm1
  vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3]

Becomes:

  vmovsd {{.*#+}} xmm0 = mem[0],zero

Unfortunately, this doesn't completely solve PR22685. There are still at least 2 problems under here:

    We're not handling v32i8 / v16i16.
    We're not getting the FP / int domains right for instruction selection.

But since this patch alone appears to do no harm, reduces code duplication, and helps v4i64, 
I'm submitting this patch ahead of fixing the above.

Differential Revision: http://reviews.llvm.org/D8341

llvm-svn: 233704
2015-03-31 16:32:11 +00:00
Craig Topper 0ee8470a43 [X86] Use vmovss to handle inserting an element into index 0 of a v8f32 vector of zeros.
llvm-svn: 231354
2015-03-05 06:38:42 +00:00
Stephen Lin 6f36b45076 Update to more CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change.
All changes were made by the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    grep -q "^; *RUN: *llc.*debug" $NAME && continue
    grep -q "^; *RUN:.*llvm-objdump" $NAME && continue
    grep -q "^; *RUN: *opt.*" $NAME && continue
    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/;\([A-Za-z0-9_-]*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC[:]* *\$/;\1\2-LABEL:\3$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
  done

This script catches a superset of the cases caught by the script associated with commit r186280. It initially found some false positives due to unusual constructs in a minority of tests; all such cases were disambiguated first in commit r186621.

llvm-svn: 186624
2013-07-18 22:47:09 +00:00
Nadav Rotem baae7e4577 Fix a bug in the lowering of BUILD_VECTOR for AVX. SCALAR_TO_VECTOR does not zero untouched elements. Use INSERT_VECTOR_ELT instead.
llvm-svn: 147948
2012-01-11 14:07:51 +00:00
Nadav Rotem 61bdf79035 Fix a bug in the legalization of shuffle vectors. When we emulate shuffles using BUILD_VECTORS we may be using a BV of different type. Make sure to cast it back.
llvm-svn: 147851
2012-01-10 14:28:46 +00:00