4 Commits

Author	SHA1	Message	Date
Konstantin Pyzhov	72e8754916	[AMDGPU] Disable 'Skip Uniform Regions' optimization by default for AMDGPU. ... Reviewers: sameerds, dstuttard Differential Revision: https://reviews.llvm.org/D77228	2020-04-06 09:05:58 -04:00
Matt Arsenault	5660bb6bc9	AMDGPU: Remove denormal subtarget features ... Switch to using the denormal-fp-math/denormal-fp-math-f32 attributes.	2020-04-02 17:17:12 -04:00
Matt Arsenault	75cf30918f	AMDGPU: Assume f32 denormals are enabled by default ... This will likely introduce catastrophic performance regressions on older subtargets, but should be correct. A follow up change will remove the old fp32-denormals subtarget features, and switch to using the new denormal-fp-math/denormal-fp-math-f32 attributes. Frontends should be making sure to add the denormal-fp-math-f32 attribute when appropriate to avoid performance regressions.	2020-04-02 17:17:12 -04:00
Matt Arsenault	90a36bbd7c	AMDGPU/GlobalISel: Legalize 64-bit G_UDIV/G_UREM ... Mostly ported from the DAG version. This results in much worse code than the DAG version, largely due to a much worse expansion for G_UMULH.	2020-03-30 10:57:37 -04:00