Diego Novillo 418d0cf1c1 Support using sample profiles with partial debug info. ...

Summary:
When using a profile, we used to require the use -gmlt so that we could
get access to the line locations. This is used to match line numbers in
the input profile to the line numbers in the function's IR.

But this is actually not necessary. The driver can provide source
location tracking without the emission of debug information. In these
cases, the annotation 'llvm.dbg.cu' is missing from the IR, but the
actual line location annotations are still present.

This patch adds a new way of looking for the start of the current
function. Instead of looking through the compile units in llvm.dbg.cu,
we can walk up the scope for the first instruction in the function with
a debug loc. If that describes the function, we use it. Otherwise, we
keep looking until we find one.

If no such instruction is found, we then give up and produce an error.

Reviewers: echristo, dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5887

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220382 91177308-0d34-0410-b5e6-96231b3b80d8

2014-10-22 12:59:00 +00:00

..

ADCE.cpp

…

AlignmentFromAssumptions.cpp

[AlignmentFromAssumptions] Don't crash just because the target is 32-bit

2014-09-11 08:40:17 +00:00

CMakeLists.txt

Add an AlignmentFromAssumptions Pass

2014-09-07 20:05:11 +00:00

ConstantHoisting.cpp

Remove unnecessary copying or replace it with moves in a bunch of places.

2014-10-04 16:55:56 +00:00

ConstantProp.cpp

…

CorrelatedValuePropagation.cpp

Make use of @llvm.assume from LazyValueInfo

2014-09-07 20:29:59 +00:00

DCE.cpp

…

DeadStoreElimination.cpp

[DSE] Remove no-data-layout-only type-based overlap checking

2014-10-17 11:56:00 +00:00

EarlyCSE.cpp

Using a deque to manage the stack of nodes is faster here.

2014-09-20 13:29:20 +00:00

FlattenCFGPass.cpp

…

GVN.cpp

Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)

2014-09-07 18:57:58 +00:00

IndVarSimplify.cpp

[BUG][INDVAR] Fix for PR21014: wrong SCEV operands commuting for non-commutative instructions

2014-10-02 13:01:15 +00:00

JumpThreading.cpp

Revert "Teach the load analysis to allow finding available values which require" (r220277)

2014-10-21 23:49:52 +00:00

LICM.cpp

Introduce enum values for previously defined metadata types. (NFC)

2014-10-21 00:13:20 +00:00

LLVMBuild.txt

ScalarOpts/LLVMBuild.txt: Prune unused dependency to IPA.

2014-09-09 15:00:38 +00:00

LoadCombine.cpp

Fixing a few -Woverloaded-virtual warnings by exposing the hidden virtual function as well. No functional changes intended.

2014-07-30 19:23:59 +00:00

LoopDeletion.cpp

Use range based for loops to avoid needing to re-mention SmallPtrSet size.

2014-08-24 23:23:06 +00:00

LoopIdiomRecognize.cpp

…

LoopInstSimplify.cpp

Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)

2014-09-07 18:57:58 +00:00

LoopRerollPass.cpp

Feeding isSafeToSpeculativelyExecute its DataLayout pointer

2014-07-10 14:41:31 +00:00

LoopRotation.cpp

Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)

2014-09-07 18:57:58 +00:00

LoopStrengthReduce.cpp

Use range based for loops to avoid needing to re-mention SmallPtrSet size.

2014-08-24 23:23:06 +00:00

LoopUnrollPass.cpp

[SCEV] Add some asserts to the recently improved trip count computation

2014-10-11 00:12:11 +00:00

LoopUnswitch.cpp

Add functions for finding ephemeral values

2014-09-07 13:49:57 +00:00

LowerAtomic.cpp

…

Makefile

…

MemCpyOptimizer.cpp

Allow call-slop optzn for destinations with a suitable dereferenceable attribute

2014-10-16 19:43:08 +00:00

MergedLoadStoreMotion.cpp

[MergedLoadStoreMotion] Move pass enabling option to PassManagerBuilder

2014-09-10 19:55:29 +00:00

PartiallyInlineLibCalls.cpp

PartiallyInlineLibCalls: Check sqrt result type before transforming it.

2014-08-01 23:21:21 +00:00

Reassociate.cpp

[Reassociate] Don't canonicalize X - undef to X + (-undef).

2014-10-09 20:06:29 +00:00

Reg2Mem.cpp

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SampleProfile.cpp

Support using sample profiles with partial debug info.

2014-10-22 12:59:00 +00:00

Scalar.cpp

[C API] Make the 'lower switch' pass available via the C API.

2014-09-11 21:32:32 +00:00

Scalarizer.cpp

Fixing the build failure due to compiler warnings and unnecessary disambiguation.

2014-10-15 23:11:35 +00:00

ScalarReplAggregates.cpp

Move the complex address expression out of DIVariable and into an extra

2014-10-01 18:55:02 +00:00

SCCP.cpp

Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.

2014-08-27 05:25:25 +00:00

SeparateConstOffsetFromGEP.cpp

Partially revert r210444 due to performance regression

2014-07-16 23:25:00 +00:00

SimplifyCFGPass.cpp

[SimplifyCFG] threshold for folding branches with common destination

2014-09-30 22:23:38 +00:00

Sink.cpp

Use range based for loops to avoid needing to re-mention SmallPtrSet size.

2014-08-24 23:23:06 +00:00

SROA.cpp

[SROA] Change how SROA does vector-based promotion of allocas to handle

2014-10-18 00:44:02 +00:00

StructurizeCFG.cpp

Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."

2014-07-21 17:06:51 +00:00

TailRecursionElimination.cpp

Fix a long-standing miscompile in the load analysis that was uncovered

2014-10-19 08:17:50 +00:00