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7 Commits

Author SHA1 Message Date
Michael Berg 005d705d43 Migrate some more fadd and fsub cases away from UnsafeFPMath control to utilize NoSignedZerosFPMath options control 
Summary: Honoring no signed zeroes is also available as a user control through clang separately regardless of fastmath or UnsafeFPMath context, DAG guards should reflect this context.

Reviewers: spatel, arsenm, hfinkel, wristow, craig.topper

Reviewed By: spatel

Subscribers: rampitec, foad, nhaehnle, wuzish, nemanjai, jvesely, wdng, javed.absar, MaskRay, jsji

Differential Revision: https://reviews.llvm.org/D65170

llvm-svn: 367486
 2019-07-31 21:57:28 +00:00
Matt Arsenault 6c29c5acfe AMDGPU: Allow SIShrinkInstructions to work in non-SSA 
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
 2017-07-10 19:53:57 +00:00
Alexander Timofeev 982aee6a38 [AMDGPU] Switch scalarize global loads ON by default 
Differential revision: https://reviews.llvm.org/D34407

llvm-svn: 307097
 2017-07-04 17:32:00 +00:00
NAKAMURA Takumi e4a741376b Revert r307026, "[AMDGPU] Switch scalarize global loads ON by default" 
It broke a testcase.

  Failing Tests (1):
      LLVM :: CodeGen/AMDGPU/alignbit-pat.ll

llvm-svn: 307054
 2017-07-04 02:14:18 +00:00
Alexander Timofeev ea7f08bee5 [AMDGPU] Switch scalarize global loads ON by default 
Differential revision: https://reviews.llvm.org/D34407

llvm-svn: 307026
 2017-07-03 14:54:11 +00:00
Matt Arsenault 3dbeefa978 AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel 
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
 2017-03-21 21:39:51 +00:00
Matt Arsenault 732a531506 DAG: Recognize no-signed-zeros-fp-math attribute 
clang already emits this with -cl-no-signed-zeros, but codegen
doesn't do anything with it. Treat it like the other fast math
attributes, and change one place to use it.

llvm-svn: 293024
 2017-01-25 06:08:42 +00:00