[PATCH] D99174: [ARM] Enable UpperBound unrolling for all loops
Sjoerd Meijer via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Mar 23 05:02:54 PDT 2021
SjoerdMeijer added inline comments.
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Comment at: llvm/test/Transforms/LoopUnroll/ARM/upperbound.ll:78
+; CHECK-NEXT: [[SWITCH:%.*]] = icmp ult i32 [[L86_OFF]], 24
+; CHECK-NEXT: br i1 [[SWITCH]], label [[FOR_END_I_IF_END8_I_CRIT_EDGE_I:%.*]], label [[FOR_INC_I_3_I_5:%.*]]
; CHECK: for.end.i.if.end8.i_crit_edge.i:
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I find this test change a bit difficult to read. What exactly is changing here?
This first check here s just a check to see if the loop executes at all, but from the other changes below I find it difficult to see if this gets now unrolled or if there are other changes.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D99174/new/
https://reviews.llvm.org/D99174
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