llvm/Transforms at 35c4e071bef11d3e6d193a1fa337788a99bbce3d - llvm

RPCS3/llvm

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History

Chandler Carruth 35c4e071be Teach the load analysis driving core instcombine logic and other bits of

logic to look through pointer casts, making them trivially stronger in
the face of loads and stores with intervening pointer casts.

I've included a few test cases that demonstrate the kind of folding
instcombine can do without pointer casts and then variations which
obfuscate the logic through bitcasts. Without this patch, the variations
all fail to optimize fully.

This is more important now than it has been in the past as I've started
moving the load canonicialization to more closely follow the value type
requirements rather than the pointer type requirements and thus this
needs to be prepared for more pointer casts. When I made the same change
to stores several test cases regressed without logic along these lines
so I wanted to systematically improve matters first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220178 91177308-0d34-0410-b5e6-96231b3b80d8

2014-10-20 00:24:14 +00:00

Hello

[CMake] Add LLVM_LINK_COMPONENTS to loadable modules, LLVMHello and BugpointPasses, on Win32.

2014-07-13 13:36:48 +00:00

InstCombine

Teach the load analysis driving core instcombine logic and other bits of

2014-10-20 00:24:14 +00:00

Instrumentation

[msan] Fix handling of byval arguments with large alignment.

2014-10-17 23:29:44 +00:00

IPO

Add some optional passes around the vectorizer to both better prepare