Commit Graph

15 Commits

Author SHA1 Message Date
Sanjay Patel d3173740fd [x86] auto-generate complete checks for tests; NFC
These all used 'CHECK-NOT' which isn't necessary if we have complete checks.
There were also several over-specifications in the RUN params such as CPU model or OS requirement

llvm-svn: 307028
2017-07-03 15:04:05 +00:00
Sanjay Patel 19792fb270 [X86, AVX] replace vinsertf128 intrinsics with generic shuffles
We want to replace as much custom x86 shuffling via intrinsics
as possible because pushing the code down the generic shuffle
optimization path allows for better codegen and less complexity
in LLVM.

This is the sibling patch for the Clang half of this change:
http://reviews.llvm.org/D8088

Differential Revision: http://reviews.llvm.org/D8086

llvm-svn: 231794
2015-03-10 16:08:36 +00:00
David Blaikie a79ac14fa6 [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

llvm-svn: 230794
2015-02-27 21:17:42 +00:00
David Blaikie 79e6c74981 [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.

This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.

* This doesn't modify gep operators, only instructions (operators will be
  handled separately)

* Textual IR changes only. Bitcode (including upgrade) and changing the
  in-memory representation will be in separate changes.

* geps of vectors are transformed as:
    getelementptr <4 x float*> %x, ...
  ->getelementptr float, <4 x float*> %x, ...
  Then, once the opaque pointer type is introduced, this will ultimately look
  like:
    getelementptr float, <4 x ptr> %x
  with the unambiguous interpretation that it is a vector of pointers to float.

* address spaces remain on the pointer, not the type:
    getelementptr float addrspace(1)* %x
  ->getelementptr float, float addrspace(1)* %x
  Then, eventually:
    getelementptr float, ptr addrspace(1) %x

Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.

update.py:
import fileinput
import sys
import re

ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile(       r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")

def conv(match, line):
  if not match:
    return line
  line = match.groups()[0]
  if len(match.groups()[5]) == 0:
    line += match.groups()[2]
  line += match.groups()[3]
  line += ", "
  line += match.groups()[1]
  line += "\n"
  return line

for line in sys.stdin:
  if line.find("getelementptr ") == line.find("getelementptr inbounds"):
    if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
      line = conv(re.match(ibrep, line), line)
  elif line.find("getelementptr ") != line.find("getelementptr ("):
    line = conv(re.match(normrep, line), line)
  sys.stdout.write(line)

apply.sh:
for name in "$@"
do
  python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
  rm -f "$name.tmp"
done

The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh

After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).

The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7636

llvm-svn: 230786
2015-02-27 19:29:02 +00:00
Benjamin Kramer 5e5fd6bb4f Move testcase, this is testing extraction not inserting.
llvm-svn: 176635
2013-03-07 18:51:02 +00:00
Benjamin Kramer 2c3d0df8ee X86: Fold EXTRACT_SUBVECTORs of a BUILD_VECTOR into a smaller BUILD_VECTOR.
That can usually be lowered efficiently and is common in sandybridge code.
It would be nice to do this in DAGCombiner but we can't insert arbitrary
BUILD_VECTORs this late.

Fixes PR15462.

llvm-svn: 176634
2013-03-07 18:48:40 +00:00
Chad Rosier 58a7c9fd3e Fix test.
llvm-svn: 153095
2012-03-20 17:20:46 +00:00
Chad Rosier 07a4cb9382 [avx] Adjust the VINSERTF128rm pattern to allow for unaligned loads.
This results in things such as

	vmovups	16(%rdi), %xmm0
	vinsertf128	$1, %xmm0, %ymm0, %ymm0

to be combined to

    vinsertf128	$1, 16(%rdi), %ymm0, %ymm0

rdar://11076953

llvm-svn: 153092
2012-03-20 17:08:51 +00:00
Chad Rosier b9b73170e3 [avx] Add patterns for VINSERTF128rm.
This results in things such as

	vmovaps	-96(%rbx), %xmm1
	vinsertf128	$1, %xmm1, %ymm0, %ymm0

to be combined to
         
	vinsertf128	$1, -96(%rbx), %ymm0, %ymm0

rdar://10643481

llvm-svn: 152762
2012-03-15 00:45:30 +00:00
Pete Cooper 682c76b7d4 Turn avx insert intrinsic calls into INSERT_SUBVECTOR DAG nodes and remove duplicate patterns for selecting the intrinsics
llvm-svn: 151342
2012-02-24 03:51:49 +00:00
Bruno Cardoso Lopes 6cb23f6e7f Add a DAGCombine for subvector extracts to remove useless chains of
subvector inserts and extracts. Initial patch by Rackover, Zvi with
some tweak done by me.

llvm-svn: 140204
2011-09-20 23:19:33 +00:00
Bruno Cardoso Lopes 8058234b32 Revert r140097, working on a better approach
llvm-svn: 140203
2011-09-20 23:19:29 +00:00
Bruno Cardoso Lopes 51792dcc4d Based on the small opt Zvi's patch was trying to achieve, eliminate
128-bit undef subvector insertion into a 256-bit vector

llvm-svn: 140097
2011-09-19 23:36:50 +00:00
Bruno Cardoso Lopes cbe7feeab9 Fix PR10656. It's only profitable to use 128-bit inserts and extracts
when AVX mode is one. Otherwise is just more work for the type
legalizer.

llvm-svn: 137661
2011-08-15 21:45:54 +00:00
Bruno Cardoso Lopes 8fbf023c9b Add a dag combine to xform 256-bit shuffles into simple vector
inserts and extracts. This simple combine makes us generate only 1
instruction instead of 11 in the v8 case.

llvm-svn: 137362
2011-08-11 21:50:44 +00:00