Craig Topper 100b9ea58d [X86] Call removeDeadNode when we're done doing custom isel for mul, div and test ... Summary: Once we've done our custom isel for these nodes, I think we should be calling removeDeadNode to prune them out of the DAG. Table driven isel ultimately either calls morphNodeTo which modifies a node and doesn't leave dead nodes. Or it emits new nodes and then calls removeDeadNode as part of Opc_CompleteMatch. If you run a simple multiply test case like this through llc with -debug you'll see a umul_lohi node get printed as part of the dump for Instruction Selection ends. ``` define i64 @foo(i64 %a, i64 %b) local_unnamed_addr #0 { entry: %conv = zext i64 %a to i128 %conv1 = zext i64 %b to i128 %mul = mul nuw nsw i128 %conv1, %conv %shr = lshr i128 %mul, 64 %conv2 = trunc i128 %shr to i64 ret i64 %conv2 } ``` Reviewers: RKSimon, spatel, zvi, guyblank, niravd Reviewed By: niravd Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D37547 llvm-svn: 312857		2017-09-09 05:57:20 +00:00
..
Analysis	[TargetTransformInfo] Add a new public interface getInstructionCost	2017-09-08 22:29:17 +00:00
AsmParser	Canonicalize the representation of empty an expression in DIGlobalVariableExpression	2017-08-30 18:06:51 +00:00
BinaryFormat	[BinaryFormat] Fix out of bounds read.	2017-08-31 12:50:42 +00:00
Bitcode	[Bitcode] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).	2017-09-07 23:28:24 +00:00
CodeGen	RegAllocFast: Fix warning; NFC	2017-09-09 01:16:59 +00:00
DebugInfo	[dwarfdump] Verify line table prologue	2017-09-08 09:48:51 +00:00
Demangle
ExecutionEngine	[ORC] Add a pair of ORC layers that forward object-layer operations via RPC.	2017-09-05 03:34:09 +00:00
Fuzzer
FuzzMutate	Move some CLI utils out of llvm-isel-fuzzer and into the library	2017-09-02 23:43:04 +00:00
IR	Revert r312318, r312325, r312424, r312489	2017-09-07 23:20:35 +00:00
IRReader
LineEditor
Linker
LTO	LTO: Remove unnecessary Windows support code.	2017-09-07 00:55:00 +00:00
MC	[WebAssembly] Update relocation names to match spec	2017-09-01 17:32:01 +00:00
Object	Object: Downgrade invalid weak externals from an assert fail to an llvm::Error when creating an irsymtab.	2017-09-07 01:33:52 +00:00
ObjectYAML	[yaml2obj][ELF] Add support for symbol indexes greater than SHN_LORESERVE	2017-09-07 20:44:16 +00:00
Option	Revert "Revert r311552: [Bash-autocompletion] Add support for static analyzer flags"	2017-08-29 00:09:31 +00:00
Passes
ProfileData	[Coverage] Build sorted and unique segments	2017-09-08 18:44:50 +00:00
Support	Don't call exit from cl::PrintHelpMessage.	2017-09-07 23:30:48 +00:00
TableGen	Untabify.	2017-08-28 06:47:47 +00:00
Target	[X86] Call removeDeadNode when we're done doing custom isel for mul, div and test	2017-09-09 05:57:20 +00:00
Testing
ToolDrivers	[llvm-dlltool] Mention arm64 in the lists of architecture alternatives	2017-09-08 06:49:46 +00:00
Transforms	[sanitizer-coverage] call appendToUsed once per module, not once per function (which is too slow)	2017-09-09 05:30:13 +00:00
WindowsManifest	Fix crbug 759265 by suppressing llvm mt warnings.	2017-09-06 01:50:36 +00:00
XRay
CMakeLists.txt
LLVMBuild.txt