Benjamin Kramer 98d6d2372f SimplifyCFG: If we have a PHI node that can evaluate to NULL and do a load or store to the address returned by the PHI node then we can consider this incoming value as dead and remove the edge pointing there, unless there are instructions that can affect control flow executed in between. ... In theory this could be extended to other instructions, eg. division by zero, but it's likely that it will "miscompile" some code because people depend on div by zero not trapping. NULL pointer dereference usually leads to a crash so we should be on the safe side. This shrinks the size of a Release clang by 16k on x86_64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138618 91177308-0d34-0410-b5e6-96231b3b80d8		2011-08-26 01:22:29 +00:00
..
ADCE	stop accepting begin/end around function bodies in the .ll parser, this isn't pascal anymore.	2011-06-17 06:42:57 +00:00
ArgumentPromotion	fix PR8932, a case where arg promotion could infinitely promote.	2011-01-16 08:09:24 +00:00
BlockPlacement
BranchFolding
CodeExtractor	manually upgrade a bunch of tests to modern syntax, and remove some that	2011-06-17 03:14:27 +00:00
CodeGenPrepare	Roll r127459 back in:	2011-03-11 21:52:04 +00:00
ConstantMerge	Teach the ConstantMerge pass about alignment. Fixes PR10514!	2011-07-27 19:47:34 +00:00
ConstProp	Land the long talked about "type system rewrite" patch. This	2011-07-09 17:41:24 +00:00
CorrelatedValuePropagation	Test for lazy value info's ability to prove the absense of NULLs in pointers.	2011-01-16 21:57:20 +00:00
DeadArgElim	Move "atomic" and "volatile" designations on instructions after the opcode	2011-08-12 22:50:01 +00:00
DeadStoreElimination	Atomic load/store handling for the passes using memdep (GVN, DSE, memcpyopt).	2011-08-17 22:22:24 +00:00
EarlyCSE	Move "atomic" and "volatile" designations on instructions after the opcode	2011-08-12 22:50:01 +00:00
FunctionAttrs	Fix test.	2011-08-16 01:42:56 +00:00
GlobalDCE
GlobalOpt	Move "atomic" and "volatile" designations on instructions after the opcode	2011-08-12 22:50:01 +00:00
GVN	Atomic load/store handling for the passes using memdep (GVN, DSE, memcpyopt).	2011-08-17 22:22:24 +00:00
IndVarSimplify	Made SCEV's UDiv expressions more canonical. When dividing a	2011-08-06 07:00:37 +00:00
Inline	rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is	2011-06-18 06:05:24 +00:00
InstCombine	Implement Constant::isAllOnesValue(). Fix ConstantFolding to use the new api.	2011-08-24 20:18:38 +00:00
InstSimplify	Remove bogus test: for all possible inputs of %X, the 'sub nsw' is guaranteed	2011-07-19 08:22:57 +00:00
Internalize	Add test for r127138.	2011-03-07 21:28:14 +00:00
IPConstantProp	Add an ipsccp test. Migrated from test/FrontendC++.	2011-08-15 20:50:36 +00:00
JumpThreading	Move "atomic" and "volatile" designations on instructions after the opcode	2011-08-12 22:50:01 +00:00
LCSSA	Do not add PHIs with no users when creating LCSSA form. Patch by Andrew Clinton.	2011-03-15 07:41:25 +00:00
LICM	Atomic load/store support in LICM.	2011-08-15 20:52:09 +00:00
LoopDeletion	Add a reduced test case for the buildbot failure (clang self-hosted	2011-06-21 08:33:49 +00:00
LoopIdiom	A real testcase for r135286.	2011-07-15 20:58:38 +00:00
LoopRotate	remove asmparser support for the old getresult instruction, which has been subsumed by extractvalue.	2011-06-17 06:57:15 +00:00
LoopSimplify	SCEV: Use AssertingVH to catch dangling BasicBlock* when passes forget	2011-08-03 18:32:11 +00:00
LoopStrengthReduce	LSR, correct fix for rdar://9786536. Silly casting bug.	2011-07-21 01:45:54 +00:00
LoopUnroll	A slew of unit tests for the recent LoopInfo::updateUnloop feature	2011-08-11 23:38:09 +00:00
LoopUnswitch	Bail on unswitching a switch statement for a case with a critical edge. We name	2011-06-03 06:27:15 +00:00
LowerAtomic	Add an atomic lowering pass	2010-08-03 16:19:16 +00:00
LowerExpectIntrinsic	Introduce "expect" intrinsic instructions.	2011-07-06 18:22:43 +00:00
LowerInvoke
LowerSwitch
Mem2Reg	Add comments and test for atomic load/store and mem2reg.	2011-08-15 23:55:52 +00:00
MemCpyOpt	Atomic load/store handling for the passes using memdep (GVN, DSE, memcpyopt).	2011-08-17 22:22:24 +00:00
MergeFunc	When removing a function from the function set and adding it to deferred, we	2011-02-09 06:32:02 +00:00
ObjCARC	Constant pointers to objects don't need reference counting.	2011-08-22 17:29:11 +00:00
PhaseOrdering	Add file.	2011-08-19 21:21:20 +00:00
PruneEH	manually upgrade a bunch of tests to modern syntax, and remove some that	2011-06-17 03:14:27 +00:00
Reassociate	Remove empty test.	2011-08-02 02:47:45 +00:00
ScalarRepl	Move "atomic" and "volatile" designations on instructions after the opcode	2011-08-12 22:50:01 +00:00
SCCP	Silly mistake from r137777; restore significant isStructTy() checks. While here, be a bit more defensive	2011-08-17 18:10:43 +00:00
SimplifyCFG	SimplifyCFG: If we have a PHI node that can evaluate to NULL and do a load or store to the address returned by the PHI node then we can consider this incoming value as dead and remove the edge pointing there, unless there are instructions that can affect control flow executed in between.	2011-08-26 01:22:29 +00:00
SimplifyLibCalls	Move "atomic" and "volatile" designations on instructions after the opcode	2011-08-12 22:50:01 +00:00
Sink	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
StripSymbols	fix PR10286, a problem with the .ll printer handling block addresses that are out-of-scope.	2011-08-03 06:15:41 +00:00
TailCallElim	make the asmparser reject function and type redefinitions. 'Merging' hasn't been	2011-06-17 07:06:44 +00:00
TailDup	Move few target-dependant tests to appropriate directories.	2011-05-06 18:24:46 +00:00