llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-10 02:36:06 +00:00

History

Duncan P. N. Exon Smith 85cbe57fc5 IR: Don't track nullptr on metadata RAUW

The RAUW support in `Metadata` supports going to `nullptr` specifically
to handle values being deleted, causing `ValueAsMetadata` to be deleted.

Fix the case where the reference is from a `TrackingMDRef` (as opposed
to an `MDOperand` or a `MetadataAsValue`).

This is surprisingly rare -- metadata tracked by `TrackingMDRef` going
to null -- but it came up in an openSUSE bootstrap during inlining.  The
tracking ref was held by the `ValueMap` because it was referencing a
local, the basic block containing the local became dead after it had
been merged in, and when the local was deleted, the tracking ref
asserted in an `isa`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224146 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-12 19:24:33 +00:00

ADT

Silencing several "multiple copy constructors" warnings from MSVC; NFC.

2014-12-03 14:44:16 +00:00

Analysis

CallGraphTest.cpp: Remove invalid tests. ++S might step over F if S == F.

2014-11-18 12:23:19 +00:00

Bitcode

[Bitcode] AtEndOfStream should only check against the size if it's known.

2014-11-13 00:08:41 +00:00

CodeGen

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