Dan Gohman 23e8b71526 Teach InstCombine's ComputeMaskedBits what SelectionDAG's ...

ComputeMaskedBits knows about cttz, ctlz, and ctpop. Teach
SelectionDAG's ComputeMaskedBits what InstCombine's knows
about SRem. And teach them both some things about high bits
in Mul, UDiv, URem, and Sub. This allows instcombine and
dagcombine to eliminate sign-extension operations in
several new cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50358 91177308-0d34-0410-b5e6-96231b3b80d8

2008-04-28 17:02:21 +00:00

..

Analysis

rename *.llx -> *.ll, last batch.

2008-04-19 22:32:52 +00:00

Archive

…

Assembler

returning an empty multiple return list is not valid.

2008-04-23 05:29:14 +00:00

Bindings/Ocaml

…

Bitcode

…

BugPoint

…

C++Frontend

…

CFrontend

Make these structs larger to ensure that they

2008-04-21 08:17:05 +00:00

CodeGen

Implement a signficant optimization for inline asm:

2008-04-27 00:37:18 +00:00

DebugInfo

…

ExecutionEngine

rename *.llx -> *.ll, last batch.

2008-04-19 22:32:52 +00:00

Feature

Update test

2008-04-25 17:54:21 +00:00

FrontendAda

…

FrontendObjC

new testcase

2008-04-25 18:11:06 +00:00

Integer

refactor handling of symbolic constant folding, picking up

2008-04-19 21:58:19 +00:00

lib

Fix tests due to llvm2cpp move to llc target

2008-04-23 22:41:53 +00:00

Linker

…

Other

Fix tests due to llvm2cpp move to llc target

2008-04-23 22:41:53 +00:00

Scripts

…

TableGen

…

Transforms

Teach InstCombine's ComputeMaskedBits what SelectionDAG's

2008-04-28 17:02:21 +00:00

Verifier

…

Makefile

Add EXTRA_OPTIONS on the llvmgxx command line.

2008-04-24 17:59:03 +00:00

Makefile.tests

…

TestRunner.sh

…