llvm/test/Transforms/InstCombine/insert-element-shuffle-vector-debugloc.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -S -passes=instcombine %s | FileCheck %s

;; InstCombine replaces the extract->insert pair with a pair of shufflevector
;; instructions, which first widen the %load vector and then replace the
;; extract->insert with a shufflevector of the widened vector and the insert
;; vector.
;; The first shufflevector, since it is materializing the same value as the
;; %load in a different form, should use %load's debug location, and the
;; second shufflevector, since it replaces a chain of instructions ending with
;; the insert, should use the insert's debug location.

define <4 x float> @widget(ptr %arg) !dbg !5 {
; CHECK-LABEL: define <4 x float> @widget(
; CHECK-SAME: ptr [[ARG:%.*]]) !dbg [[DBG5:![0-9]+]] {
; CHECK-NEXT:  [[BB:.*:]]
; CHECK-NEXT:    [[LOAD:%.*]] = load <2 x float>, ptr [[ARG]], align 4, !dbg [[DBG8:![0-9]+]]
; CHECK-NEXT:    [[TMP0:%.*]] = shufflevector <2 x float> [[LOAD]], <2 x float> poison, <4 x i32> <i32 0, i32 poison, i32 poison, i32 poison>, !dbg [[DBG8]]
; CHECK-NEXT:    [[INSERTELEMENT:%.*]] = shufflevector <4 x float> <float 0.000000e+00, float poison, float poison, float poison>, <4 x float> [[TMP0]], <4 x i32> <i32 4, i32 0, i32 0, i32 0>, !dbg [[DBG9:![0-9]+]]
; CHECK-NEXT:    ret <4 x float> [[INSERTELEMENT]], !dbg [[DBG10:![0-9]+]]
;
bb:
  %load = load <2 x float>, ptr %arg, align 4, !dbg !8
  %extractelement = extractelement <2 x float> %load, i32 0, !dbg !9
  %insertelement = insertelement <4 x float> zeroinitializer, float %extractelement, i32 0, !dbg !10
  ret <4 x float> %insertelement, !dbg !11
}

!llvm.dbg.cu = !{!0}
!llvm.debugify = !{!2, !3}
!llvm.module.flags = !{!4}

!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
!1 = !DIFile(filename: "reduced.ll", directory: "/")
!2 = !{i32 4}
!3 = !{i32 0}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = distinct !DISubprogram(name: "widget", linkageName: "widget", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
!6 = !DISubroutineType(types: !7)
!7 = !{}
!8 = !DILocation(line: 1, column: 1, scope: !5)
!9 = !DILocation(line: 2, column: 1, scope: !5)
!10 = !DILocation(line: 3, column: 1, scope: !5)
!11 = !DILocation(line: 4, column: 1, scope: !5)
;.
; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C, file: [[META1:![0-9]+]], producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
; CHECK: [[META1]] = !DIFile(filename: "{{.*}}reduced.ll", directory: {{.*}})
; CHECK: [[DBG5]] = distinct !DISubprogram(name: "widget", linkageName: "widget", scope: null, file: [[META1]], line: 1, type: [[META6:![0-9]+]], scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: [[META0]])
; CHECK: [[META6]] = !DISubroutineType(types: [[META7:![0-9]+]])
; CHECK: [[META7]] = !{}
; CHECK: [[DBG8]] = !DILocation(line: 1, column: 1, scope: [[DBG5]])
; CHECK: [[DBG9]] = !DILocation(line: 3, column: 1, scope: [[DBG5]])
; CHECK: [[DBG10]] = !DILocation(line: 4, column: 1, scope: [[DBG5]])
;.