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# b284414a 10-May-2019 Michael Liao <[email protected]>

[InferAddressSpaces] Enhance the handling of cosntexpr.

Summary:
- Constant expressions may not be added in strict postorder as the
forward instruction scan order. Thus, for a constant express (CE

[InferAddressSpaces] Enhance the handling of cosntexpr.

Summary:
- Constant expressions may not be added in strict postorder as the
forward instruction scan order. Thus, for a constant express (CE0), if
its operand (CE1) is used in an previous instruction, they are not in
postorder. However, different from
`cloneInstructionWithNewAddressSpace`,
`cloneConstantExprWithNewAddressSpace` doesn't bookkeep uninferred
instructions for later resolving. That results in failure of inferring
constant address.
- This patch adds the support to infer constant expression operand
recursively, since there won't be loop, if that operand is another
constant expression.

Reviewers: arsenm

Subscribers: jholewinski, jvesely, wdng, nhaehnle, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61760

llvm-svn: 360431

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# cee313d2 17-Apr-2019 Eric Christopher <[email protected]>

Revert "Temporarily Revert "Add basic loop fusion pass.""

The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552


Revision tags: llvmorg-8.0.0, llvmorg-8.0.0-rc5, llvmorg-8.0.0-rc4, llvmorg-8.0.0-rc3, llvmorg-7.1.0, llvmorg-7.1.0-rc1, llvmorg-8.0.0-rc2, llvmorg-8.0.0-rc1, llvmorg-7.0.1, llvmorg-7.0.1-rc3, llvmorg-7.0.1-rc2, llvmorg-7.0.1-rc1, llvmorg-7.0.0, llvmorg-7.0.0-rc3, llvmorg-7.0.0-rc2, llvmorg-7.0.0-rc1, llvmorg-6.0.1, llvmorg-6.0.1-rc3, llvmorg-6.0.1-rc2, llvmorg-6.0.1-rc1, llvmorg-5.0.2, llvmorg-5.0.2-rc2, llvmorg-5.0.2-rc1, llvmorg-6.0.0, llvmorg-6.0.0-rc3, llvmorg-6.0.0-rc2
# 2a22c5de 02-Feb-2018 Yaxun Liu <[email protected]>

[AMDGPU] Switch to the new addr space mapping by default

This requires corresponding clang change.

Differential Revision: https://reviews.llvm.org/D40955

llvm-svn: 324101


Revision tags: llvmorg-6.0.0-rc1, llvmorg-5.0.1, llvmorg-5.0.1-rc3, llvmorg-5.0.1-rc2, llvmorg-5.0.1-rc1, llvmorg-5.0.0, llvmorg-5.0.0-rc5, llvmorg-5.0.0-rc4, llvmorg-5.0.0-rc3, llvmorg-5.0.0-rc2, llvmorg-5.0.0-rc1, llvmorg-4.0.1, llvmorg-4.0.1-rc3, llvmorg-4.0.1-rc2
# e0f9e984 28-Apr-2017 Matt Arsenault <[email protected]>

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: 30

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

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# a1e73405 28-Apr-2017 Matt Arsenault <[email protected]>

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 expressi

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

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Revision tags: llvmorg-4.0.1-rc1
# c07bda7b 21-Apr-2017 Matt Arsenault <[email protected]>

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 addrspacecas

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

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