llvm/test/Transforms/SeparateConstOffsetFromGEP/AArch64/scalable-vector-geps.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=separate-const-offset-from-gep < %s | FileCheck %s

target triple = "aarch64-linux-gnu"

; Index is implicitly multiplied by vscale and so not really constant.
define ptr @test1(ptr %base, i64 %idx) #0 {
; CHECK-LABEL: @test1(
; CHECK-NEXT:    [[IDX_NEXT:%.*]] = add nuw nsw i64 [[IDX:%.*]], 1
; CHECK-NEXT:    [[GEP:%.*]] = getelementptr <vscale x 4 x float>, ptr [[BASE:%.*]], i64 [[IDX_NEXT]]
; CHECK-NEXT:    ret ptr [[GEP]]
;
  %idx.next = add nuw nsw i64 %idx, 1
  %gep = getelementptr <vscale x 4 x float>, ptr %base, i64 %idx.next
  ret ptr %gep
}

; Whilst the first index is not constant, the calculation of the second index
; does contain a constant that can be extracted.
define ptr @test2(ptr %base, i64 %idx) {
; CHECK-LABEL: @test2(
; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr <vscale x 4 x float>, ptr [[BASE:%.*]], i64 3, i64 [[IDX:%.*]]
; CHECK-NEXT:    [[GEP2:%.*]] = getelementptr i8, ptr [[TMP1]], i64 4
; CHECK-NEXT:    ret ptr [[GEP2]]
;
  %idx.next = add nuw nsw i64 %idx, 1
  %gep = getelementptr <vscale x 4 x float>, ptr %base, i64 3, i64 %idx.next
  ret ptr %gep
}

; Index is implicitly multiplied by vscale and so not really constant.
define ptr @test3(ptr %base, i64 %idx) #0 {
; CHECK-LABEL: @test3(
; CHECK-NEXT:    [[IDX_NEXT:%.*]] = add nuw nsw i64 [[IDX:%.*]], 1
; CHECK-NEXT:    [[GEP:%.*]] = getelementptr [8 x <vscale x 4 x float>], ptr [[BASE:%.*]], i64 [[IDX_NEXT]]
; CHECK-NEXT:    ret ptr [[GEP]]
;
  %idx.next = add nuw nsw i64 %idx, 1
  %gep = getelementptr [8 x <vscale x 4 x float>], ptr %base, i64 %idx.next
  ret ptr %gep
}

; Indices are implicitly multiplied by vscale and so not really constant.
define ptr @test4(ptr %base, i64 %idx) {
; CHECK-LABEL: @test4(
; CHECK-NEXT:    [[IDX_NEXT:%.*]] = add nuw nsw i64 [[IDX:%.*]], 1
; CHECK-NEXT:    [[GEP:%.*]] = getelementptr [8 x <vscale x 4 x float>], ptr [[BASE:%.*]], i64 3, i64 [[IDX_NEXT]]
; CHECK-NEXT:    ret ptr [[GEP]]
;
  %idx.next = add nuw nsw i64 %idx, 1
  %gep = getelementptr [8 x <vscale x 4 x float>], ptr %base, i64 3, i64 %idx.next
  ret ptr %gep
}

; Whilst the first two indices are not constant, the calculation of the third
; index does contain a constant that can be extracted.
define ptr @test5(ptr %base, i64 %idx) {
; CHECK-LABEL: @test5(
; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr [8 x <vscale x 4 x float>], ptr [[BASE:%.*]], i64 1, i64 3, i64 [[IDX:%.*]]
; CHECK-NEXT:    [[GEP2:%.*]] = getelementptr i8, ptr [[TMP1]], i64 4
; CHECK-NEXT:    ret ptr [[GEP2]]
;
  %idx.next = add nuw nsw i64 %idx, 1
  %gep = getelementptr [8 x <vscale x 4 x float>], ptr %base, i64 1, i64 3, i64 %idx.next
  ret ptr %gep
}

attributes #0 = { "target-features"="+sve" }