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Current implementation of estimating divisions loses precision since it
estimates reciprocal first and does multiplication. This patch is to re-order
arithmetic operations in the last iteration in DAGCombiner to improve the
accuracy.
Reviewed By: Sanjay Patel, Jinsong Ji
Differential Revision: https://reviews.llvm.org/D66050
llvm-svn: 371713
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Immediates can be folded as long as the immediate is a vreg.
Also undo commuting instructions if it didn't fold an immediate.
llvm-svn: 307575
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Differential revision: https://reviews.llvm.org/D34407
llvm-svn: 307097
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It broke a testcase.
Failing Tests (1):
LLVM :: CodeGen/AMDGPU/alignbit-pat.ll
llvm-svn: 307054
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Differential revision: https://reviews.llvm.org/D34407
llvm-svn: 307026
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Currently the default C calling convention functions are treated
the same as compute kernels. Make this explicit so the default
calling convention can be changed to a non-kernel.
Converted with perl -pi -e 's/define void/define amdgpu_kernel void/'
on the relevant test directories (and undoing in one place that actually
wanted a non-kernel).
llvm-svn: 298444
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llvm-svn: 277535
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When the memory vectorizer is enabled, these tests break.
These tests don't really care about the memory instructions,
and it's easier to write check lines with the unmerged loads.
llvm-svn: 266071
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llvm-svn: 260493
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llvm-svn: 239657
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