[PATCH] D30038: [ADMGPU] SDWA peephole optimization pass.

Stanislav Mekhanoshin via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Mar 16 16:40:23 PDT 2017


rampitec added inline comments.


================
Comment at: lib/Target/AMDGPU/SIPeepholeSDWA.cpp:384
+  for (MachineInstr &MI : MBB) {
+    unsigned Opcode = MI.getOpcode();
+    switch (Opcode) {
----------------
What will happen if instruction already comes to the pass with either SDWA or DPP in it? There can be only one such operand per instruction.


https://reviews.llvm.org/D30038





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