[PATCH] D55030: [AMDGPU] Fold brcond (setcc zext(i1 x), 1, ne) -> brcond x

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec marked an inline comment as done.
rampitec added inline comments.


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Comment at: lib/Target/AMDGPU/SIISelLowering.cpp:8664
+  if (OrigCC.getValueType() != MVT::i1)
+    return SDValue();
+
----------------
mareko wrote:
> How do you know OrigCC is setcc? It could also be any bitwise op.
I do not need to kbow it, it can be anything producing i1. An i1 value will become sreg64 and will be directly used. In fact in the testcase it is not setcc, it is CopyFromReg.


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  https://reviews.llvm.org/D55030/new/

https://reviews.llvm.org/D55030