llvm-6502/test/CodeGen
Simon Pilgrim 34630b6ea9 [X86][SSE] Avoid vector byte shuffles with zero by using pshufb to create zeros
pshufb can shuffle in zero bytes as well as bytes from a source vector - we can use this to avoid having to shuffle 2 vectors and ORing the result when the used inputs from a vector are all zeroable.

Differential Revision: http://reviews.llvm.org/D6878



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225551 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-09 22:03:19 +00:00
..
AArch64 Revert r225165 and r225169 2015-01-07 06:34:34 +00:00
ARM Fix large stack alignment codegen for ARM and Thumb2 targets 2015-01-08 15:09:14 +00:00
CPP
Generic CodeGen: do not attempt to invalidate virtual registers for zero-sized phis. 2014-12-19 20:50:07 +00:00
Hexagon [Hexagon] Adding dealloc_return encoding and absolute address stores. 2015-01-06 16:15:15 +00:00
Inputs IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
Mips [mips] Add support for accessing $gp as a named register. 2015-01-09 17:21:30 +00:00
MSP430
NVPTX [NVPTX] Fix bugs related to isSingleValueType 2014-12-17 17:59:04 +00:00
PowerPC [PowerPC] Fold [sz]ext with fp_to_int lowering where possible 2015-01-09 01:34:30 +00:00
R600 R600/SI: Remove SIISelLowering::legalizeOperands() 2015-01-08 15:08:17 +00:00
SPARC IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
SystemZ IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
Thumb IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
Thumb2 [ARM] Fix a bug in constant island pass that was triggering an assertion. 2015-01-08 20:44:50 +00:00
X86 [X86][SSE] Avoid vector byte shuffles with zero by using pshufb to create zeros 2015-01-09 22:03:19 +00:00
XCore IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00