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Commit 72a7024a authored by Matt Arsenault's avatar Matt Arsenault Committed by Matt Arsenault
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AMDGPU: Correctly lower llvm.sqrt.f32 

Make codegen emit correctly rounded sqrt by default.

Emit the fast but only kind of fast expansion in AMDGPUCodeGenPrepare
based on !fpmath, like the fdiv case. Hack around visitation ordering
problems from AMDGPUCodeGenPrepare using forward iteration instead of
a well behaved combiner.

https://reviews.llvm.org/D158129
parent 64751ea2
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