xref: /llvm-project/llvm/test/Transforms/SLPVectorizer/RISCV/getpointerschaincost.ll (revision 38fffa630ee80163dc65e759392ad29798905679)

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt -S -mtriple=riscv64 -mattr=+v -riscv-v-slp-max-vf=0 -passes=slp-vectorizer -pass-remarks-output=%t < %s | FileCheck %s
; RUN: FileCheck --input-file=%t --check-prefix=YAML %s

; Because all of these addresses are foldable, the scalar cost should be 0 when
; computing the pointers chain cost.
;
; TODO: These are currently costed as free the indices are all constants, but we
; should check if the constants are actually foldable
define void @f(ptr %dest, i64 %i) {
; CHECK-LABEL: define void @f
; CHECK-SAME: (ptr [[DEST:%.*]], i64 [[I:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[P1:%.*]] = getelementptr i32, ptr [[DEST]], i32 0
; CHECK-NEXT:    store <4 x i32> splat (i32 1), ptr [[P1]], align 4
; CHECK-NEXT:    ret void
;
entry:
; YAML:      Pass:            slp-vectorizer
; YAML-NEXT: Name:            StoresVectorized
; YAML-NEXT: Function:        f
; YAML-NEXT: Args:
; YAML-NEXT:   - String:          'Stores SLP vectorized with cost '
; YAML-NEXT:   - Cost:            '-2'
; YAML-NEXT:   - String:          ' and with tree size '
; YAML-NEXT:   - TreeSize:        '2'
  %p1 = getelementptr i32, ptr %dest, i32 0
  store i32 1, ptr %p1
  %p2 = getelementptr i32, ptr %dest, i32 1
  store i32 1, ptr %p2
  %p3 = getelementptr i32, ptr %dest, i32 2
  store i32 1, ptr %p3
  %p4 = getelementptr i32, ptr %dest, i32 3
  store i32 1, ptr %p4
  ret void
}

; When computing the scalar pointers chain cost here, there is a cost of 1 for
; the base pointer, and the rest can be folded in, so the scalar cost should be
; 1.
;
; TODO: These are currently costed as free the indices are all constants, but we
; should check if the constants are actually foldable
define void @g(ptr %dest, i64 %i) {
; CHECK-LABEL: define void @g
; CHECK-SAME: (ptr [[DEST:%.*]], i64 [[I:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[P1:%.*]] = getelementptr i32, ptr [[DEST]], i32 2048
; CHECK-NEXT:    store <4 x i32> splat (i32 1), ptr [[P1]], align 4
; CHECK-NEXT:    ret void
;
entry:
; YAML:      Pass:            slp-vectorizer
; YAML-NEXT: Name:            StoresVectorized
; YAML-NEXT: Function:        g
; YAML-NEXT: Args:
; YAML-NEXT:   - String:          'Stores SLP vectorized with cost '
; YAML-NEXT:   - Cost:            '-2'
; YAML-NEXT:   - String:          ' and with tree size '
; YAML-NEXT:   - TreeSize:        '2'
  %p1 = getelementptr i32, ptr %dest, i32 2048
  store i32 1, ptr %p1
  %p2 = getelementptr i32, ptr %dest, i32 2049
  store i32 1, ptr %p2
  %p3 = getelementptr i32, ptr %dest, i32 2050
  store i32 1, ptr %p3
  %p4 = getelementptr i32, ptr %dest, i32 2051
  store i32 1, ptr %p4
  ret void
}

; When computing the scalar pointers chain cost here, there is a cost of
; 1 for the base pointer, and the rest can be folded in, so the scalar cost
; should be 1.
define void @h(ptr %dest, i32 %i) {
; CHECK-LABEL: define void @h
; CHECK-SAME: (ptr [[DEST:%.*]], i32 [[I:%.*]]) #[[ATTR0]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[P1:%.*]] = getelementptr [4 x i32], ptr [[DEST]], i32 [[I]], i32 0
; CHECK-NEXT:    store <4 x i32> splat (i32 1), ptr [[P1]], align 4
; CHECK-NEXT:    ret void
;
entry:
; YAML:      Pass:            slp-vectorizer
; YAML-NEXT: Name:            StoresVectorized
; YAML-NEXT: Function:        h
; YAML-NEXT: Args:
; YAML-NEXT:   - String:          'Stores SLP vectorized with cost '
; YAML-NEXT:   - Cost:            '-2'
; YAML-NEXT:   - String:          ' and with tree size '
; YAML-NEXT:   - TreeSize:        '2'
  %p1 = getelementptr [4 x i32], ptr %dest, i32 %i, i32 0
  store i32 1, ptr %p1
  %p2 = getelementptr [4 x i32], ptr %dest, i32 %i, i32 1
  store i32 1, ptr %p2
  %p3 = getelementptr [4 x i32], ptr %dest, i32 %i, i32 2
  store i32 1, ptr %p3
  %p4 = getelementptr [4 x i32], ptr %dest, i32 %i, i32 3
  store i32 1, ptr %p4
  ret void
}