llvm-project/llvm/test
Chandler Carruth 1964078936 [x86] Teach the new vector shuffle lowering to aggressively form MOVSS
and MOVSD nodes for single element vector inserts.

This is particularly important because a number of patterns in the
backend detect these patterns and leverage them to simplify things. It
also fixes quite a few of the insertion bad code examples. However, it
regresses a specific area: when available, blendps and blendpd are
*dramatically* faster than movss and movsd respectively. But it doesn't
really work to form the blend logic first because the blends *aren't* as
crazy efficient when the data is coming from memory anyways, and thus
will have a movss or movsd regardless. Also, doing that would block
a bunch of the patterns that this is designed to hit.

So my plan is to go into the patterns for lowering MOVSS and MOVSD and
lower them via blends when available. However that's a pretty invasive
restructuring so it will need to be a follow-up patch.

I have already gone into the patterns to lower MOVSS and MOVSD from
memory using MOVLPD, etc. Without that, several of the test cases
I already have regress.

llvm-svn: 218985
2014-10-03 13:11:13 +00:00
..
Analysis [BasicAA] Revert r218714 - Make better use of zext and sign information. 2014-10-03 01:33:47 +00:00
Assembler Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
Bindings Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
Bitcode Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
BugPoint Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
CodeGen [x86] Teach the new vector shuffle lowering to aggressively form MOVSS 2014-10-03 13:11:13 +00:00
DebugInfo Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
ExecutionEngine [mips] Remove XFAIL from two XPASS'ing tests on the llvm-mips-linux builder 2014-10-03 08:49:44 +00:00
Feature Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
FileCheck FileCheck: Add a flag to allow checking empty input 2014-08-07 18:40:37 +00:00
Instrumentation Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
Integer
JitListener Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
LTO LTO: Add missing target triple from r218784 2014-10-01 18:49:58 +00:00
Linker Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
MC Revert "DI: Fold constant arguments into a single MDString" 2014-10-02 22:15:31 +00:00
Object Nuke MCAnalysis. 2014-09-02 22:32:20 +00:00
Other [lit] Parse all strings as UTF-8 rather than ASCII. 2014-09-12 16:46:05 +00:00
TableGen [AVX512] Added intrinsics for VPCMPEQB and VPCMPEQW. 2014-09-30 11:32:22 +00:00
Transforms Revert r215343. 2014-10-03 09:29:24 +00:00
Unit Let test/Unit/lit.cfg add config.shlibdir to $PATH on DLL platforms like cygming. 2014-07-04 05:11:55 +00:00
Verifier Verifier: Don't reject varargs callee cleanup functions 2014-08-29 21:25:28 +00:00
YAMLParser
tools llvm-readobj: print COFF delay-load import table 2014-10-03 00:41:58 +00:00
.clang-format
CMakeLists.txt Add LLVMgold target to test dependencies. 2014-09-10 22:20:49 +00:00
Makefile Delete support for AuroraUX. 2014-08-14 15:15:09 +00:00
Makefile.tests
TestRunner.sh
lit.cfg pass environment when invoking llvm-config from lit.cfg 2014-09-24 18:37:48 +00:00
lit.site.cfg.in Add missing Interpreter intrinsic lowering for sin, cos and ceil 2014-08-08 15:00:12 +00:00