Chandler Carruth c370acdf96 Add a major missing piece to the new SROA pass: aggressive splitting of ... FCAs. This is essential in order to promote allocas that are used in struct returns by frontends like Clang. The FCA load would block the rest of the pass from firing, resulting is significant regressions with the bullet benchmark in the nightly test suite. Thanks to Duncan for repeated discussions about how best to do this, and to both him and Benjamin for review. This appears to have blocked many places where the pass tries to fire, and so I'm expect somewhat different results with this fix added. As with the last big patch, I'm including a change to enable the SROA by default *temporarily*. Ben is going to remove this as soon as the LNT bots pick up the patch. I'm just trying to get a round of LNT numbers from the stable machines in the lab. NOTE: Four clang tests are expected to fail in the brief window where this is enabled. Sorry for the noise! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164119 91177308-0d34-0410-b5e6-96231b3b80d8		2012-09-18 12:57:43 +00:00
..
ADCE	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
ArgumentPromotion	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
BBVectorize	Allow BBVectorize to form non-2^n-length vectors.	2012-06-28 05:42:42 +00:00
BlockPlacement	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
BranchFolding
CodeExtractor	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
CodeGenPrepare	During the CodeGenPrepare we often lower intrinsics (such as objsize)	2012-08-14 05:19:07 +00:00
ConstantMerge	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
ConstProp	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
CorrelatedValuePropagation	make LazyValueInfo analyze the default case of switch statements (we know that in the default branch the value cannot be any of the switch cases)	2012-06-28 16:13:37 +00:00
DeadArgElim	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
DeadStoreElimination	Fix more fallout from r158919, similar to PR13547.	2012-09-03 05:15:15 +00:00
EarlyCSE	Fix regression from r151466: an we can't replace uses of an instruction reachable from the entry block with uses of an instruction not reachable from the entry block. PR12231.	2012-03-13 01:06:07 +00:00
FunctionAttrs	Convert all tests using TCL-style quoting to use shell-style quoting.	2012-07-02 12:47:22 +00:00
GlobalDCE	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
GlobalOpt	Add testcases for GlobalOpt changes in r160693 and r160757.	2012-07-29 01:15:37 +00:00
GVN	Make MemoryBuiltins aware of TargetLibraryInfo.	2012-08-29 15:32:21 +00:00
IndVarSimplify	indvars: Linear function test replace should avoid reusing undef.	2012-07-18 04:35:10 +00:00
Inline	Fix broken check lines.	2012-08-17 12:28:26 +00:00
InstCombine	Fix instcombine to obey requested alignment when merging allocas.	2012-09-18 09:31:44 +00:00
InstSimplify	Revert r153521 as it's causing large regressions on the nightly testers.	2012-03-28 18:42:50 +00:00
Internalize	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
IPConstantProp	Convert all tests using TCL-style quoting to use shell-style quoting.	2012-07-02 12:47:22 +00:00
JumpThreading	JumpThreading: when default destination is the destination of some cases in a	2012-09-05 23:45:58 +00:00
LCSSA	Convert all tests using TCL-style quoting to use shell-style quoting.	2012-07-02 12:47:22 +00:00
LICM	LICM may hoist an instruction with undefined behavior above a trap.	2012-09-04 10:25:04 +00:00
LoopDeletion	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
LoopIdiom	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
LoopRotate	LoopRotation: Make the brute force DomTree update more brute force.	2012-09-02 11:57:22 +00:00
LoopSimplify	Convert all tests using TCL-style quoting to use shell-style quoting.	2012-07-02 12:47:22 +00:00
LoopStrengthReduce	During the CodeGenPrepare we often lower intrinsics (such as objsize)	2012-08-14 05:19:07 +00:00
LoopUnroll	Fix 12513: Loop unrolling breaks with indirect branches.	2012-04-10 05:14:42 +00:00
LoopUnswitch	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00
LowerAtomic	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
LowerExpectIntrinsic	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
LowerInvoke	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
LowerSwitch	PR1255 related changes (case ranges):	2012-05-24 09:33:20 +00:00
Mem2Reg	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
MemCpyOpt	MemCpyOpt: When forming a memset from stores also take GEP constexprs into account.	2012-09-13 16:29:49 +00:00
MergeFunc	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
MetaRenamer	Review feedback from Duncan Sands. Alphabetize includes and simplify	2012-09-14 19:19:57 +00:00
ObjCARC	Detect overflow in the path count computation. rdar://12277446.	2012-09-12 20:45:17 +00:00
PhaseOrdering	Reapply r155136 after fixing PR12599.	2012-04-23 17:39:52 +00:00
PruneEH	The normal edge of an invoke is not allowed to branch to a block with a	2012-08-10 20:55:20 +00:00
Reassociate	Stop reassociate from looking through expressions of arbitrary complexity. This	2012-07-26 09:26:40 +00:00
ScalarRepl	Port the global copy optimization from the SROA pass to InstCombine.	2012-08-21 08:39:44 +00:00
SCCP	Fix the remaining TCL-style quotes found in the testsuite. This is	2012-07-02 19:09:46 +00:00
SimplifyCFG	PGO: preserve branch-weight metadata when simplifying Switch to a sub, an icmp	2012-09-18 00:47:33 +00:00
SimplifyLibCalls	SimplifyLibCalls: Give all safely-shrinkable libcalls the same treatment.	2012-08-22 19:39:15 +00:00
Sink	Enhance the sinking code to handle diamond patterns. Patch by	2012-05-31 08:09:49 +00:00
SROA	Add a major missing piece to the new SROA pass: aggressive splitting of	2012-09-18 12:57:43 +00:00
StripSymbols	Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.	2012-02-16 06:28:33 +00:00
TailCallElim	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00
TailDup	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00