[llvm] [SLP][REVEC] Expand getelementptr into vector form. (PR #103704)

[Alexey Bataev via llvm-commits]

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@@ -0,0 +1,43 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -mtriple=riscv64 -mcpu=sifive-x280 -passes=slp-vectorizer -S -slp-revec -slp-max-reg-size=1024 -slp-threshold=-100 %s | FileCheck %s
+
+define i32 @test() {
+; CHECK-LABEL: @test(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br label [[IF_END_I87:%.*]]
+; CHECK:       if.end.i87:
+; CHECK-NEXT:    [[TMP0:%.*]] = call <4 x i32> @llvm.masked.gather.v4i32.v4p0(<4 x ptr> getelementptr (i32, <4 x ptr> <ptr inttoptr (i64 64036 to ptr), ptr inttoptr (i64 64036 to ptr), ptr inttoptr (i64 64064 to ptr), ptr inttoptr (i64 64064 to ptr)>, <4 x i64> <i64 0, i64 1, i64 0, i64 1>), i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> poison)
+; CHECK-NEXT:    [[TMP1:%.*]] = call <4 x i32> @llvm.vector.insert.v4i32.v2i32(<4 x i32> poison, <2 x i32> poison, i64 0)
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alexey-bataev wrote:

Why inserting poison here?

https://github.com/llvm/llvm-project/pull/103704