David Majnemer af6be11a60 InstCombine: Fix miscompile in X % -Y -> X % Y transform ...

We assumed that negation operations of the form (0 - %Z) resulted in a
negative number.  This isn't true if %Z was originally negative.
Substituting the negative number into the remainder operation may result
in undefined behavior because the dividend might be INT_MIN.

This fixes PR21256.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219639 91177308-0d34-0410-b5e6-96231b3b80d8

2014-10-13 22:37:51 +00:00

..

Analysis

This patch teaches ScalarEvolution to pick and use !range metadata.

2014-10-10 21:22:34 +00:00

Assembler

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

Bindings

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

Bitcode

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

BugPoint

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

CodeGen

Fix a broadcast related regression on the vector shuffle lowering.

2014-10-13 16:16:16 +00:00

DebugInfo

[dwarfdump] Prettyprint DW_AT_APPLE_property_attribute bitfield values.

2014-10-10 15:51:10 +00:00

ExecutionEngine

[mips] Remove XFAIL from two XPASS'ing tests on the llvm-mips-linux builder

2014-10-03 08:49:44 +00:00

Feature

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

FileCheck

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Instrumentation

[asan-asm-instrumentation] Fixed memory references which includes %rsp as a base or an index register.

2014-10-13 09:37:47 +00:00

Integer

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JitListener

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

Linker

[dwarfdump] Print the name for referenced specification of abstract_origin DIEs.

2014-10-06 03:36:31 +00:00

LTO

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MC

[mips][microMIPS] Implement ADDIUSP instruction

2014-10-10 14:37:30 +00:00

Object

Suppress llvm-ar's MRI tests for now on win32, since line_iterator is incompatible to CRLF.

2014-10-11 22:21:27 +00:00

Other

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TableGen

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tools

Add VS2012-generated test inputs for test/tools/llvm-readobj/codeview-linetables.test

2014-10-13 17:03:13 +00:00

Transforms

InstCombine: Fix miscompile in X % -Y -> X % Y transform

2014-10-13 22:37:51 +00:00

Unit

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Verifier

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YAMLParser

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.clang-format

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CMakeLists.txt

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lit.cfg

llvm/test/lit.cfg: Suppress dwarf stuff for targeting x86_64-mingw32 while investigating since r219108.

2014-10-06 23:29:06 +00:00

lit.site.cfg.in

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Makefile

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Makefile.tests

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TestRunner.sh

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