llvm-6502/test
David Majnemer 2af441e26e InstCombine: mul to shl shouldn't preserve nsw
consider:
mul i32 nsw %x, -2147483648

this instruction will not result in poison if %x is 1

however, if we transform this into:
shl i32 nsw %x, 31

then we will be generating poison because we just shifted into the sign
bit.

This fixes PR21242.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219566 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-11 10:19:52 +00:00
..
Analysis This patch teaches ScalarEvolution to pick and use !range metadata. 2014-10-10 21:22:34 +00:00
Assembler
Bindings
Bitcode
BugPoint
CodeGen Add basic conditional branches in mips fast-isel 2014-10-11 00:55:18 +00:00
DebugInfo [dwarfdump] Prettyprint DW_AT_APPLE_property_attribute bitfield values. 2014-10-10 15:51:10 +00:00
ExecutionEngine
Feature
FileCheck
Instrumentation DebugInfo+DFSan: Ensure that debug info references to llvm::Functions remain pointing to the underlying function when wrappers are created 2014-10-07 22:59:46 +00:00
Integer
JitListener
Linker [dwarfdump] Print the name for referenced specification of abstract_origin DIEs. 2014-10-06 03:36:31 +00:00
LTO
MC [mips][microMIPS] Implement ADDIUSP instruction 2014-10-10 14:37:30 +00:00
Object llvm-ar: Start adding support for mri scripts. 2014-10-10 18:33:51 +00:00
Other
TableGen
tools llvm-readobj: add test for r219228 2014-10-08 02:06:11 +00:00
Transforms InstCombine: mul to shl shouldn't preserve nsw 2014-10-11 10:19:52 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
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
Makefile
Makefile.tests
TestRunner.sh