Simon Pilgrim 32da2f9245 [DAGCombine] Permit combining of shuffles of equivalent splat BUILD_VECTORs ... combineShuffleOfScalars is very conservative about shuffled BUILD_VECTORs that can be combined together. This patch adds one additional case - if both BUILD_VECTORs represent splats of the same scalar value but with different UNDEF elements, then we should create a single splat BUILD_VECTOR, sharing only the UNDEF elements defined by the shuffle mask. Differential Revision: https://reviews.llvm.org/D38696 llvm-svn: 316331		2017-10-23 15:48:08 +00:00
..
AArch64	GISel: Canonicalize select tests using update_mir_test_checks	2017-10-18 23:33:31 +00:00
AMDGPU	Canonicalize a large number of mir tests using update_mir_test_checks	2017-10-18 23:18:12 +00:00
ARC	[ARC] Add ARC backend.	2017-08-24 15:40:33 +00:00
ARM	[ARM] Dynamic stack alignment for 16-bit Thumb	2017-10-22 11:56:35 +00:00
AVR	[AVR] Fix the select-mbb-placement-bug.ll	2017-10-20 04:17:14 +00:00
BPF	bpf: fix bug on silently truncating 64-bit immediate	2017-10-16 04:14:53 +00:00
Generic	[ARM/AARCH64] Make test MachineBranchProb.ll more robust and re-enable for ARM/AArch64	2017-10-05 18:33:34 +00:00
Hexagon	[Packetizer] Add function to check for aliasing between instructions	2017-10-20 22:08:40 +00:00
Inputs	…
Lanai	…
MIR	Canonicalize a large number of mir tests using update_mir_test_checks	2017-10-18 23:18:12 +00:00
MSP430	…
Mips	Revert "[mips] Reordering callseq* nodes to be linear"	2017-10-20 14:35:41 +00:00
NVPTX	[NVPTX] Implemented wmma intrinsics and instructions.	2017-10-12 18:27:55 +00:00
Nios2	…
PowerPC	Reverting r316270 due to failing build bots.	2017-10-21 20:38:15 +00:00
RISCV	[RISCV] Initial codegen support for ALU operations	2017-10-19 21:37:38 +00:00
SPARC	Revert "Re-enable "[MachineCopyPropagation] Extend pass to do COPY source forwarding""	2017-10-03 16:59:13 +00:00
SystemZ	[SystemZ] Enable machine scheduler.	2017-10-06 13:59:28 +00:00
Thumb	[ARM] Dynamic stack alignment for 16-bit Thumb	2017-10-22 11:56:35 +00:00
Thumb2	[ARM] Call setBooleanContents(ZeroOrOneBooleanContent)	2017-08-22 11:02:37 +00:00
WebAssembly	[WebAssembly] Narrow the scope of WebAssemblyFixFunctionBitcasts	2017-10-10 16:20:18 +00:00
WinEH	Make x86 __ehhandler comdat if parent function is	2017-10-20 17:04:43 +00:00
X86	[DAGCombine] Permit combining of shuffles of equivalent splat BUILD_VECTORs	2017-10-23 15:48:08 +00:00
XCore	[MC] Suppress .Lcfi labels when emitting textual assembly	2017-10-10 00:57:36 +00:00