Craig Topper 553ac560aa [X86] Add some custom type legalization rules for truncate with -x86-experimental-vector-widening-legalization. ... This avoids some nasty shuffles when we have avx512. It will also prevent using zmm truncate instructions when a ymm instruction that zeroes part of an xmm register will do. Also avoid using avx512 truncate instructions when the input is 128 bits or less. These instructions are 2 uops on skx so we can probably find a better single uop shuffle like pshufb. llvm-svn: 346936		2018-11-15 08:23:40 +00:00
..
AArch64	[ARM64] [Windows] Handle funclets	2018-11-09 23:33:30 +00:00
AMDGPU	AMDGPU: Fix check lines in fdot2 test:	2018-11-15 02:42:04 +00:00
ARC	…
ARM	[CodeGen] Fix forward scan in MachineBasicBlock::computeRegisterLiveness.	2018-11-14 00:39:29 +00:00
AVR	[AVR] Reorder the CHECK lines in directmem.ll to match current trunk	2018-11-09 23:17:59 +00:00
BPF	[bpf] Test case for symbol information in object file	2018-09-22 17:31:01 +00:00
Generic	[IR] Add a dedicated FNeg IR Instruction	2018-11-13 18:15:47 +00:00
Hexagon	[Hexagon] Implement noreturn optimization	2018-11-09 18:16:24 +00:00
Inputs	…
Lanai	…
MIR	[Power9] Allow gpr callee saved spills in prologue to vectors registers	2018-11-09 16:36:24 +00:00
MSP430	Revert "[MSP430] Add MC layer"	2018-11-08 16:21:29 +00:00
Mips	[DAGCombiner][X86][Mips] Enable combineShuffleOfScalars to run between vector op legalization and DAG legalization. Fix bad one use check in combineShuffleOfScalars	2018-11-09 18:04:34 +00:00
NVPTX	…
Nios2	…
PowerPC	[PowerPC] Enhance the selection(ISD::VSELECT) of vector type	2018-11-14 02:34:45 +00:00
RISCV	[RISCV] Support .option relax and .option norelax	2018-11-12 14:25:07 +00:00
SPARC	Relax fast register allocator related test cases; NFC	2018-10-29 20:10:42 +00:00
SystemZ	[SystemZ] Increase the number of VLREPs	2018-11-13 08:37:09 +00:00
Thumb	[SelectionDAG] swap select_cc operands to enable folding	2018-11-09 11:09:40 +00:00
Thumb2	[ARM] Enable spilling of the hGPR register class in Thumb2	2018-11-08 13:02:10 +00:00
WebAssembly	[WebAssembly] Add support for the event section	2018-11-14 02:46:21 +00:00
WinCFGuard	[COFF] Emit @feat.00 on 64-bit and set the CFG bit when emitting guardcf tables	2018-09-19 09:58:30 +00:00
WinEH	…
X86	[X86] Add some custom type legalization rules for truncate with -x86-experimental-vector-widening-legalization.	2018-11-15 08:23:40 +00:00
XCore	Relax fast register allocator related test cases; NFC	2018-10-29 20:10:42 +00:00