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21 Commits

Author SHA1 Message Date
Sanjoy Das e6bca0eecb Rename WeakVH to WeakTrackingVH; NFC 
This relands r301424.

llvm-svn: 301812
 2017-05-01 17:07:49 +00:00
Matt Arsenault e0f9e984fd InferAddressSpaces: Search constant expressions for addrspacecasts 
These are pretty common when using local memory, and the 64-bit generic
addressing is much more expensive to compute.

llvm-svn: 301711
 2017-04-28 22:52:41 +00:00
Matt Arsenault c20ccd2c02 InferAddressSpaces: Avoid looking up deleted values 
While looking at pure addressing expressions, it's possible
for the value to appear later in Postorder.

I haven't been able to come up with a testcase where this
exhibits an actual issue, but if you insert a dump before
the value map lookup, a few testcases crash.

llvm-svn: 301705
 2017-04-28 22:18:19 +00:00
Matt Arsenault a1e734050c InferAddressSpaces: Infer from just addrspacecasts 
Eliminates some more cases where some subset of the addressing
computation remains flat. Some cases with addrspacecasts
in nested constant expressions are still left behind however.

llvm-svn: 301704
 2017-04-28 22:18:08 +00:00
Matt Arsenault 6d7f01e3d8 InferAddressSpaces: Use reference arguments instead of pointers 
llvm-svn: 301276
 2017-04-24 23:42:41 +00:00
Matt Arsenault e8d0539f20 InferAddressSpaces: Remove redundant assert 
This is just asserting all the operations are handled in the
switch, which the unreachable already handles.

llvm-svn: 301270
 2017-04-24 23:02:57 +00:00
Matt Arsenault c07bda7b87 InferAddressSpaces: Infer for just GEPs 
Fixes leaving intermediate flat addressing computations
where a GEP instruction's source is a constant expression.

Still leaves behind a trivial addrspacecast + gep pair that
instcombine is able to handle, which ideally could be folded
here directly.

llvm-svn: 301044
 2017-04-21 21:35:04 +00:00
Matt Arsenault 79f837c254 AMDGPU: Add all atomicrmw fields to atomic.inc/dec 
Add scope, order, isVolatile

llvm-svn: 299122
 2017-03-30 22:21:40 +00:00
Matt Arsenault c18b67745b Bug 31948: Fix assertion when bitcasting constantexpr pointers 
llvm-svn: 295387
 2017-02-17 00:32:19 +00:00
Matt Arsenault 300836098f InferAddressSpaces: Handle more cases with constant select operands 
llvm-svn: 293859
 2017-02-02 03:37:22 +00:00
Matt Arsenault db6e9e89a9 InferAddressSpaces: clang-format some things 
llvm-svn: 293843
 2017-02-02 00:28:25 +00:00
Matt Arsenault bdd59e6879 InferAddressSpaces: Handle select 
This fails to handle some cases where one of the inputs is
a constant to be fixed in a later commit.

llvm-svn: 293723
 2017-02-01 00:08:53 +00:00
Matt Arsenault 864fbacb4a InferAddressSpaces: Remove dead declaration 
llvm-svn: 293720
 2017-01-31 23:57:20 +00:00
Matt Arsenault 517a290e4f InferAddressSpaces: Avoid double map lookup 
llvm-svn: 293719
 2017-01-31 23:48:44 +00:00
Matt Arsenault 2a46d81038 InferAddressSpaces: Fix broken casting of constants 
llvm-svn: 293718
 2017-01-31 23:48:40 +00:00
Matt Arsenault 973c4aebad InferAddressSpaces: Rename constant 
llvm-svn: 293594
 2017-01-31 02:17:41 +00:00
Matt Arsenault 72f259b8eb InferAddressSpaces: Handle icmp 
llvm-svn: 293593
 2017-01-31 02:17:32 +00:00
Matt Arsenault 6d5a8d48fd InferAddressSpaces: Support memory intrinsics 
llvm-svn: 293587
 2017-01-31 01:56:57 +00:00
Matt Arsenault 6c907a9bb3 InferAddressSpaces: Support atomics 
llvm-svn: 293584
 2017-01-31 01:40:38 +00:00
Matt Arsenault d89a6e11a7 InferAddressSpaces: Don't replace volatile users 
llvm-svn: 293582
 2017-01-31 01:30:16 +00:00
Matt Arsenault 850657a439 NVPTX: Move InferAddressSpaces to generic code 
llvm-svn: 293579
 2017-01-31 01:10:58 +00:00