[PATCH] D95350: [SVE][LoopVectorize] Add gather/scatter support for SVE
Florian Hahn via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jan 27 03:10:34 PST 2021
fhahn edited reviewers, added: fhahn; removed: Florian.
fhahn added inline comments.
================
Comment at: llvm/test/Transforms/LoopVectorize/AArch64/sve-gather-scatter.ll:12
+entry:
+ %cmp10 = icmp sgt i64 %n, 0
+ br i1 %cmp10, label %for.body.preheader, label %for.cond.cleanup
----------------
This shouldn't be necessary, LV will generate a minimum iteration check anyways.
================
Comment at: llvm/test/Transforms/LoopVectorize/AArch64/sve-gather-scatter.ll:15
+
+for.body.preheader: ; preds = %entry
+ br label %for.body
----------------
are those blocks needed?
================
Comment at: llvm/test/Transforms/LoopVectorize/AArch64/sve-gather-scatter.ll:28
+ %0 = load i32, i32* %arrayidx, align 4
+ %idxprom2 = sext i32 %0 to i64
+ %arrayidx3 = getelementptr inbounds float, float* %a, i64 %idxprom2
----------------
Is this necessary? Can we instead just load from a `i64*` or use `i32` in the GEP? Same for the other tests.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D95350/new/
https://reviews.llvm.org/D95350
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