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AssumptionCache can be null in SimplifyCFGOptions. However, FoldCondBranchOnPHI() was not properly handling that when passing a null AssumptionCache to simplifyCFG.
Patch by Rodrigo Caetano Rocha <rcor.cs@gmail.com>
Reviewers: fhahn, lebedev.ri, spatel
Reviewed By: spatel
Differential Revision: https://reviews.llvm.org/D69963
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Summary:
Related bug: https://bugs.llvm.org/show_bug.cgi?id=40648
Static helper function rewriteDebugUsers in Local.cpp deletes dbg.value
intrinsics when it cannot move or rewrite them, or salvage the deleted
instruction's value. It should instead undef them in this case.
This patch fixes that and I've added a test which covers the failing test
case in bz40648. I've updated the unit test Local.ReplaceAllDbgUsesWith
to check for this behaviour (and fixed a typo in the test which would
cause the old test to always pass).
Reviewers: aprantl, vsk, djtodoro, probinson
Reviewed By: vsk
Subscribers: hiraditya, llvm-commits
Tags: #debug-info, #llvm
Differential Revision: https://reviews.llvm.org/D70604
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Terminators like invoke can have users outside the current basic block.
We have to replace those users with undef, before replacing the
terminator.
This fixes a crash exposed by rL373430.
Reviewers: brzycki, asbirlea, davide, spatel
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D68327
llvm-svn: 373513
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There are no users that pass in LazyValueInfo, so we can simplify the
function a bit.
Reviewers: brzycki, asbirlea, davide
Reviewed By: davide
Differential Revision: https://reviews.llvm.org/D68297
llvm-svn: 373488
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Refactor DIExpression::With* into a flag enum in order to be less
error-prone to use (as discussed on D60866).
Patch by Djordje Todorovic.
Differential Revision: https://reviews.llvm.org/D61943
llvm-svn: 361137
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Introduce a DW_OP_LLVM_convert Dwarf expression pseudo op that allows
for a convenient way to perform type conversions on the Dwarf expression
stack. As an additional bonus it paves the way for using other Dwarf
v5 ops that need to reference a base_type.
The new DW_OP_LLVM_convert is used from lib/Transforms/Utils/Local.cpp
to perform sext/zext on debug values but mainly the patch is about
preparing terrain for adding other Dwarf v5 ops that need to reference a
base_type.
For Dwarf v5 the op maps to DW_OP_convert and for earlier versions a
complex shift & mask pattern is generated to emulate sext/zext.
This is a recommit of r356442 with trivial fixes for the failing tests.
Differential Revision: https://reviews.llvm.org/D56587
llvm-svn: 356451
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This reverts commit 1cf4b593a7ebd666fc6775f3bd38196e8e65fafe.
Build bots found failing tests not detected locally.
Failing Tests (3):
LLVM :: DebugInfo/Generic/convert-debugloc.ll
LLVM :: DebugInfo/Generic/convert-inlined.ll
LLVM :: DebugInfo/Generic/convert-linked.ll
llvm-svn: 356444
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Introduce a DW_OP_LLVM_convert Dwarf expression pseudo op that allows
for a convenient way to perform type conversions on the Dwarf expression
stack. As an additional bonus it paves the way for using other Dwarf
v5 ops that need to reference a base_type.
The new DW_OP_LLVM_convert is used from lib/Transforms/Utils/Local.cpp
to perform sext/zext on debug values but mainly the patch is about
preparing terrain for adding other Dwarf v5 ops that need to reference a
base_type.
For Dwarf v5 the op maps to DW_OP_convert and for earlier versions a
complex shift & mask pattern is generated to emulate sext/zext.
Differential Revision: https://reviews.llvm.org/D56587
llvm-svn: 356442
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DomTreeUpdater depends on headers from Analysis, but is in IR. This is a
layering violation since Analysis depends on IR. Relocate this code from IR
to Analysis to fix the layering violation.
llvm-svn: 353265
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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llvm-svn: 342344
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The convention for unit test sources is that they're called FooTest.cpp.
No behavior change.
https://reviews.llvm.org/D51579
llvm-svn: 341313
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