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LLVM backend for 6502
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e53dbeb2ad
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Sanjay Patel e53dbeb2ad [X86, AVX] improve insertion into zero element of 256-bit vector 
This patch allows AVX blend instructions to handle insertion into the low
element of a 256-bit vector for the appropriate data types.

For f32, instead of:

   vblendps	$1, %xmm1, %xmm0, %xmm1 ## xmm1 = xmm1[0],xmm0[1,2,3]
   vblendps	$15, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]

we get:

   vblendps	$1, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0],ymm0[1,2,3,4,5,6,7]

For f64, instead of:

   vmovsd	%xmm1, %xmm0, %xmm1     ## xmm1 = xmm1[0],xmm0[1]
   vblendpd	$3, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0,1],ymm0[2,3]

we get:

   vblendpd	$1, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0],ymm0[1,2,3]

For the hardware-neglected integer data types, I left a TODO comment in the
code and added regression tests for a follow-on patch.

Differential Revision: http://reviews.llvm.org/D8609



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233199 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-25 17:36:01 +00:00
autoconf [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
bindings Go bindings: use MDNode::replaceAllUsesWith instead of MDTuple::replaceAllUsesWith. 2015-03-05 22:55:38 +00:00
cmake Disabling warnings for MSVC build to enable /W4 use. 2015-03-24 23:37:10 +00:00
docs docs: Update llvm-cov docs for the -use-color flag 2015-03-19 18:22:46 +00:00
examples Fix build. 2015-03-25 04:36:20 +00:00
include [APInt] Add an isSplat helper and use it in some places. 2015-03-25 16:49:59 +00:00
lib [X86, AVX] improve insertion into zero element of 256-bit vector 2015-03-25 17:36:01 +00:00
projects Reverse the order libc++ and libc++abi are added in CMake. 2015-03-04 01:16:43 +00:00
test [X86, AVX] improve insertion into zero element of 256-bit vector 2015-03-25 17:36:01 +00:00
tools llvm-jitlistener: Add missing include. 2015-03-25 17:12:36 +00:00
unittests [APInt] Add an isSplat helper and use it in some places. 2015-03-25 16:49:59 +00:00
utils Revert "Use std::bitset for SubtargetFeatures" 2015-03-24 12:56:59 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt test: Fix the dependencies for the check-llvm-* targets 2015-03-25 08:07:47 +00:00
CODE_OWNERS.TXT Tom is also responsible for the 3.6 branch. 2015-03-16 18:15:27 +00:00
configure [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +00:00

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