Andrew Trick 57ddfcf201 Fix SCEV forgetMemoizedResults should search and destroy backedge exprs. ...

Fixes PR15570: SEGV: SCEV back-edge info invalid after dead code removal.

Indvars creates a SCEV expression for the loop's back edge taken
count, then determines that the comparison is always true and
removes it.

When loop-unroll asks for the expression, it contains a NULL
SCEVUnknkown (as a CallbackVH).

forgetMemoizedResults should invalidate the loop back edges expression.

llvm-svn: 177986

2013-03-26 03:14:53 +00:00

..

Analysis

Fix SCEV forgetMemoizedResults should search and destroy backedge exprs.

2013-03-26 03:14:53 +00:00

Archive

Fix auto_ptr is deprecated warnings

2013-02-26 21:20:35 +00:00

AsmParser

Unify clang/llvm attributes for asan/tsan/msan (LLVM part)

2013-02-26 06:58:09 +00:00

Bitcode

Simplify code. No functionality change.

2013-02-19 09:48:30 +00:00

CodeGen

Enhance folding of (extract_subvec (insert_subvec V1, V2, IIdx), EIdx)

2013-03-25 23:47:35 +00:00

DebugInfo

Fix missing std::. Not sure how this compiles for anyone else.

2013-03-21 00:57:21 +00:00

ExecutionEngine

Formatting, grammar

2013-02-20 18:24:34 +00:00

IR

Swap the DIFile in DILexicalBlockFile out for the raw name/directory pair

2013-03-22 20:18:46 +00:00

IRReader

Split out the IRReader header and the utility functions it provides into

2013-03-26 02:25:37 +00:00

Linker

The Linker interface has some dead code after the cleanup in r172749

2013-03-19 15:26:24 +00:00

MC

Dead code.

2013-03-19 22:13:05 +00:00

Object

Move an assert earlier in a file and check that the result of

2013-02-28 20:26:17 +00:00

Option

Resort the #include lines in include/... and lib/... with the

2013-01-02 10:22:59 +00:00

Support

Add missing file to cmake build.

2013-03-26 01:29:15 +00:00

TableGen

Allow TableGen DAG arguments to be just a name.

2013-03-24 19:36:51 +00:00

Target

ARM Scheduler Model: Add resources instructions, map resources in subtargets

2013-03-26 02:01:42 +00:00

Transforms

[ObjCARC Annotations] Added support for displaying the state of pointers at the bottom/top of BBs of the ARC dataflow analysis for both bottomup and topdown analyses.

2013-03-26 00:42:09 +00:00

CMakeLists.txt

Split out the IRReader header and the utility functions it provides into

2013-03-26 02:25:37 +00:00

LLVMBuild.txt

Split out the IRReader header and the utility functions it provides into

2013-03-26 02:25:37 +00:00

Makefile

Split out the IRReader header and the utility functions it provides into

2013-03-26 02:25:37 +00:00