[PATCH] D89170: [AMDGPU] Select flat scratch instructions where available

[Scott Linder via Phabricator via llvm-commits]

scott.linder added a comment.

I haven't done a meaningful review, but I wanted to note that this will require changes to the debug information (which isn't committed yet). I think this could be as simple as scaling the value of the SP/FP in the DWARF expression to recover the unswizzled scratch address.



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Comment at: llvm/lib/Target/AMDGPU/SIFrameLowering.cpp:368
 
+static unsigned getScracthScaleFactor(const GCNSubtarget &ST) {
+  return ST.enableFlatScratch() ? 1 : ST.getWavefrontSize();
----------------
s/Scracth/Scratch/


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  https://reviews.llvm.org/D89170/new/

https://reviews.llvm.org/D89170