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7 Commits

Author SHA1 Message Date
Sanjay Patel
5703d9f0b8 use update_llc_test_checks.py to tighten checking 
remove redundant and unnecessary test parameters


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234022 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-04-03 17:02:48 +00:00
Sanjay Patel
1b10376319 [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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233724 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-03-31 18:43:43 +00:00
Sanjay Patel
7ea151449d [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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233704 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-03-31 16:32:11 +00:00
Craig Topper
62eaac6087 [X86] Use vmovss to handle inserting an element into index 0 of a v8f32 vector of zeros. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231354 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-03-05 06:38:42 +00:00
Stephen Lin
cf2ab764db 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186624 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-18 22:47:09 +00:00
Nadav Rotem
394a1f53b9 Fix a bug in the lowering of BUILD_VECTOR for AVX. SCALAR_TO_VECTOR does not zero untouched elements. Use INSERT_VECTOR_ELT instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147948 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-11 14:07:51 +00:00
Nadav Rotem
6c0366cb25 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147851 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-10 14:28:46 +00:00