llvm-6502/test/CodeGen
Sanjay Patel fe76881930 [X86, AVX] recognize shufflevector with zero input as a vperm2 (PR22984)
vperm2x128 instructions have the special ability (aka free hardware capability)
to shuffle zero values into a vector.

This patch recognizes that type of shuffle and generates the appropriate
control byte.

https://llvm.org/bugs/show_bug.cgi?id=22984

Differential Revision: http://reviews.llvm.org/D8563



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233100 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-24 19:19:07 +00:00
..
AArch64 [AArch64, ARM] Enable GlobalMerge with -O3 rather than -O1. 2015-03-23 21:17:36 +00:00
ARM [AArch64, ARM] Enable GlobalMerge with -O3 rather than -O1. 2015-03-23 21:17:36 +00:00
BPF [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
CPP [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
Generic Unxfail test/CodeGen/Generic/vector.ll now passing on Hexagon 2015-03-19 20:22:17 +00:00
Hexagon [Hexagon] Add support for vector instructions 2015-03-19 16:33:08 +00:00
Inputs DebugInfo: Move new hierarchy into place 2015-03-03 17:24:31 +00:00
Mips [mips] Support 16-bit offsets for 'm' inline assembly memory constraint. 2015-03-24 15:19:14 +00:00
MSP430 [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
NVPTX Add support for __nvvm_reflect changes in libdevice in CUDA-7.0 2015-03-19 17:05:35 +00:00
PowerPC [SDAG] Don't widen VSETCC during type legalization for split operands 2015-03-23 08:22:43 +00:00
R600 R600/SI: Select V_BFE_U32 for and+shift with a non-literal offset 2015-03-24 13:40:34 +00:00
SPARC [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
SystemZ Change SystemZ large tests to use the existing long_tests property 2015-03-02 19:34:11 +00:00
Thumb [ARM] Fix handling of thumb1 out-of-range frame offsets 2015-03-20 17:20:07 +00:00
Thumb2 Fix a nasty bug in DAGCombine of STORE nodes. 2015-03-19 22:48:57 +00:00
WinEH Fixing a bug with WinEH PHI handling 2015-03-20 21:42:54 +00:00
X86 [X86, AVX] recognize shufflevector with zero input as a vperm2 (PR22984) 2015-03-24 19:19:07 +00:00
XCore DebugInfo: Fix testcases that fail -verify-debug-info=true 2015-03-16 21:10:12 +00:00