Hal Finkel 033e0a94cb Don't crash in SE dealing with ashr x, -1 ...

ScalarEvolution::getSignedRange uses ComputeNumSignBits from ValueTracking on
ashr instructions. ComputeNumSignBits can return zero, but this case was not
handled correctly by the code in getSignedRange which was calling:
  APInt::getSignedMinValue(BitWidth).ashr(NS - 1)
with NS = 0, resulting in an assertion failure in APInt::ashr.

Now, we just return the conservative result (as with NS == 1).

Another bug found by llvm-stress.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185955 91177308-0d34-0410-b5e6-96231b3b80d8

2013-07-09 18:16:16 +00:00

..

Analysis

Add the nearbyint -> FNEARBYINT mapping to BasicTargetTransformInfo

2013-07-08 03:24:07 +00:00

Archive

Fix an ordering problem in the test.

2013-06-21 07:23:14 +00:00

Assembler

Fix test: It was missing run lines and llvm-dis has no -disable-verify option.

2013-07-03 16:27:55 +00:00

Bindings/Ocaml

Convert an OCaml binding grep test to FileCheck

2013-07-08 14:14:22 +00:00

Bitcode

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BugPoint

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CodeGen

Don't crash in SE dealing with ashr x, -1

2013-07-09 18:16:16 +00:00

DebugInfo

DebugInfo: Consider global variables without locations to be valid

2013-07-04 23:15:18 +00:00

ExecutionEngine

Enable mcjit tests on ppc64 when building with cmake.

2013-06-03 19:17:21 +00:00

Feature

Add a new function attribute 'cold' to functions.

2013-05-24 12:26:52 +00:00

FileCheck

Prefix failing commands with not to make clear they are expected to fail.

2013-07-03 16:41:29 +00:00

Instrumentation

[msan] Unpoison stack allocations and undef values in blacklisted functions.

2013-07-03 14:39:14 +00:00

Integer

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JitListener

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Linker

Extend RemapInstruction and friends to take an optional new parameter, a ValueMaterializer.

2013-05-28 15:17:05 +00:00

MC

[PowerPC] Revert r185476 and fix up TLS variant kinds

2013-07-09 16:41:09 +00:00

Object

Don't create an archive if, for example, we are asked to print the index.

2013-07-05 13:03:07 +00:00

Other

llvm/test/Other/llvm-cov.test: It requires +Asserts to let XFAILed.

2013-07-08 08:44:24 +00:00

TableGen

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tools

Revert: Fix wrong code offset for unwind code SET_FPREG.

2013-07-08 04:48:34 +00:00

Transforms

ValueTracking: Fix bugs in isKnownToBeAPowerOfTwo

2013-07-09 18:11:10 +00:00

Unit

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Verifier

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YAMLParser

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CMakeLists.txt

llvm/test/CMakeLists.txt: Add llvm-cov in "check-clang".

2013-07-08 08:44:36 +00:00

lit.cfg

Suppress llvm/test/Other/can-execute.txt on msys bash.

2013-06-26 10:56:44 +00:00

lit.site.cfg.in

Allow host triple to be correctly overridden in CMake builds

2013-05-04 07:36:23 +00:00

Makefile

add polly to check-all

2013-05-20 18:49:15 +00:00

Makefile.tests

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TestRunner.sh

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