xref: /llvm-project/llvm/test/Transforms/InstCombine/insert-ext.ll (revision acdc419c897f8a9414c7a00c8908ac32312afee2)

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

declare void @use(i32)
declare void @usevec(<2 x i32>)

define <2 x double> @fpext_fpext(<2 x half> %x, half %y, i32 %index) {
; CHECK-LABEL: @fpext_fpext(
; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <2 x half> [[X:%.*]], half [[Y:%.*]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    [[I:%.*]] = fpext <2 x half> [[TMP1]] to <2 x double>
; CHECK-NEXT:    ret <2 x double> [[I]]
;
  %v = fpext <2 x half> %x to <2 x double>
  %s = fpext half %y to double
  %i = insertelement <2 x double> %v, double %s, i32 %index
  ret <2 x double> %i
}

define <2 x i32> @sext_sext(<2 x i8> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @sext_sext(
; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <2 x i8> [[X:%.*]], i8 [[Y:%.*]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    [[I:%.*]] = sext <2 x i8> [[TMP1]] to <2 x i32>
; CHECK-NEXT:    ret <2 x i32> [[I]]
;
  %v = sext <2 x i8> %x to <2 x i32>
  %s = sext i8 %y to i32
  %i = insertelement <2 x i32> %v, i32 %s, i32 %index
  ret <2 x i32> %i
}

define <2 x i12> @zext_zext(<2 x i8> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @zext_zext(
; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <2 x i8> [[X:%.*]], i8 [[Y:%.*]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    [[I:%.*]] = zext <2 x i8> [[TMP1]] to <2 x i12>
; CHECK-NEXT:    ret <2 x i12> [[I]]
;
  %v = zext <2 x i8> %x to <2 x i12>
  %s = zext i8 %y to i12
  %i = insertelement <2 x i12> %v, i12 %s, i32 %index
  ret <2 x i12> %i
}

; negative test - need same source type

define <2 x double> @fpext_fpext_types(<2 x half> %x, float %y, i32 %index) {
; CHECK-LABEL: @fpext_fpext_types(
; CHECK-NEXT:    [[V:%.*]] = fpext <2 x half> [[X:%.*]] to <2 x double>
; CHECK-NEXT:    [[S:%.*]] = fpext float [[Y:%.*]] to double
; CHECK-NEXT:    [[I:%.*]] = insertelement <2 x double> [[V]], double [[S]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    ret <2 x double> [[I]]
;
  %v = fpext <2 x half> %x to <2 x double>
  %s = fpext float %y to double
  %i = insertelement <2 x double> %v, double %s, i32 %index
  ret <2 x double> %i
}

; negative test - need same source type

define <2 x i32> @sext_sext_types(<2 x i16> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @sext_sext_types(
; CHECK-NEXT:    [[V:%.*]] = sext <2 x i16> [[X:%.*]] to <2 x i32>
; CHECK-NEXT:    [[S:%.*]] = sext i8 [[Y:%.*]] to i32
; CHECK-NEXT:    [[I:%.*]] = insertelement <2 x i32> [[V]], i32 [[S]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    ret <2 x i32> [[I]]
;
  %v = sext <2 x i16> %x to <2 x i32>
  %s = sext i8 %y to i32
  %i = insertelement <2 x i32> %v, i32 %s, i32 %index
  ret <2 x i32> %i
}

; negative test - need same extend opcode

define <2 x i12> @sext_zext(<2 x i8> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @sext_zext(
; CHECK-NEXT:    [[V:%.*]] = sext <2 x i8> [[X:%.*]] to <2 x i12>
; CHECK-NEXT:    [[S:%.*]] = zext i8 [[Y:%.*]] to i12
; CHECK-NEXT:    [[I:%.*]] = insertelement <2 x i12> [[V]], i12 [[S]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    ret <2 x i12> [[I]]
;
  %v = sext <2 x i8> %x to <2 x i12>
  %s = zext i8 %y to i12
  %i = insertelement <2 x i12> %v, i12 %s, i32 %index
  ret <2 x i12> %i
}

; negative test - don't trade scalar extend for vector extend

define <2 x i32> @sext_sext_use1(<2 x i8> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @sext_sext_use1(
; CHECK-NEXT:    [[V:%.*]] = sext <2 x i8> [[X:%.*]] to <2 x i32>
; CHECK-NEXT:    call void @usevec(<2 x i32> [[V]])
; CHECK-NEXT:    [[S:%.*]] = sext i8 [[Y:%.*]] to i32
; CHECK-NEXT:    [[I:%.*]] = insertelement <2 x i32> [[V]], i32 [[S]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    ret <2 x i32> [[I]]
;
  %v = sext <2 x i8> %x to <2 x i32>
  call void @usevec(<2 x i32> %v)
  %s = sext i8 %y to i32
  %i = insertelement <2 x i32> %v, i32 %s, i32 %index
  ret <2 x i32> %i
}

define <2 x i32> @zext_zext_use2(<2 x i8> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @zext_zext_use2(
; CHECK-NEXT:    [[S:%.*]] = zext i8 [[Y:%.*]] to i32
; CHECK-NEXT:    call void @use(i32 [[S]])
; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <2 x i8> [[X:%.*]], i8 [[Y]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    [[I:%.*]] = zext <2 x i8> [[TMP1]] to <2 x i32>
; CHECK-NEXT:    ret <2 x i32> [[I]]
;
  %v = zext <2 x i8> %x to <2 x i32>
  %s = zext i8 %y to i32
  call void @use(i32 %s)
  %i = insertelement <2 x i32> %v, i32 %s, i32 %index
  ret <2 x i32> %i
}

; negative test - don't create an extra extend

define <2 x i32> @zext_zext_use3(<2 x i8> %x, i8 %y, i32 %index) {
; CHECK-LABEL: @zext_zext_use3(
; CHECK-NEXT:    [[V:%.*]] = zext <2 x i8> [[X:%.*]] to <2 x i32>
; CHECK-NEXT:    call void @usevec(<2 x i32> [[V]])
; CHECK-NEXT:    [[S:%.*]] = zext i8 [[Y:%.*]] to i32
; CHECK-NEXT:    call void @use(i32 [[S]])
; CHECK-NEXT:    [[I:%.*]] = insertelement <2 x i32> [[V]], i32 [[S]], i32 [[INDEX:%.*]]
; CHECK-NEXT:    ret <2 x i32> [[I]]
;
  %v = zext <2 x i8> %x to <2 x i32>
  call void @usevec(<2 x i32> %v)
  %s = zext i8 %y to i32
  call void @use(i32 %s)
  %i = insertelement <2 x i32> %v, i32 %s, i32 %index
  ret <2 x i32> %i
}