test/Transforms/InstCombine/unpack-fca.ll

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

target datalayout = "e-i64:64-f80:128-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"

%A__vtbl = type { ptr, ptr }
%A = type { ptr }
%B = type { ptr, i64 }

@A__vtblZ = constant %A__vtbl { ptr null, ptr @A.foo }

declare i32 @A.foo(ptr nocapture %this)

define void @storeA(ptr %a.ptr) {
; CHECK-LABEL: @storeA(
; CHECK-NEXT:    store ptr @A__vtblZ, ptr [[A_PTR:%.*]], align 8
; CHECK-NEXT:    ret void
;
  store %A { ptr @A__vtblZ }, ptr %a.ptr, align 8
  ret void
}

define void @storeB(ptr %b.ptr) {
; CHECK-LABEL: @storeB(
; CHECK-NEXT:    store ptr null, ptr [[B_PTR:%.*]], align 8
; CHECK-NEXT:    [[B_PTR_REPACK1:%.*]] = getelementptr inbounds [[B:%.*]], ptr [[B_PTR]], i64 0, i32 1
; CHECK-NEXT:    store i64 42, ptr [[B_PTR_REPACK1]], align 8
; CHECK-NEXT:    ret void
;
  store %B { ptr null, i64 42 }, ptr %b.ptr, align 8
  ret void
}

define void @storeStructOfA(ptr %sa.ptr) {
; CHECK-LABEL: @storeStructOfA(
; CHECK-NEXT:    store ptr @A__vtblZ, ptr [[SA_PTR:%.*]], align 8
; CHECK-NEXT:    ret void
;
  store { %A } { %A { ptr @A__vtblZ } }, ptr %sa.ptr, align 8
  ret void
}

define void @storeArrayOfA(ptr %aa.ptr) {
; CHECK-LABEL: @storeArrayOfA(
; CHECK-NEXT:    store ptr @A__vtblZ, ptr [[AA_PTR:%.*]], align 8
; CHECK-NEXT:    ret void
;
  store [1 x %A] [%A { ptr @A__vtblZ }], ptr %aa.ptr, align 8
  ret void
}

; UTC_ARGS: --disable
define void @storeLargeArrayOfA(ptr %aa.ptr) {
; CHECK-LABEL: @storeLargeArrayOfA(
; CHECK-NEXT:    store [2000 x %A]
; CHECK-NEXT:    ret void
;
  %i1 = insertvalue [2000 x %A] poison, %A { ptr @A__vtblZ }, 1
  store [2000 x %A] %i1, ptr %aa.ptr, align 8
  ret void
}
; UTC_ARGS: --enable

define void @storeStructOfArrayOfA(ptr %saa.ptr) {
; CHECK-LABEL: @storeStructOfArrayOfA(
; CHECK-NEXT:    store ptr @A__vtblZ, ptr [[SAA_PTR:%.*]], align 8
; CHECK-NEXT:    ret void
;
  store { [1 x %A] } { [1 x %A] [%A { ptr @A__vtblZ }] }, ptr %saa.ptr, align 8
  ret void
}

define void @storeArrayOfB(ptr %ab.ptr, [2 x %B] %ab) {
; CHECK-LABEL: @storeArrayOfB(
; CHECK-NEXT:    [[AB_ELT:%.*]] = extractvalue [2 x %B] [[AB:%.*]], 0
; CHECK-NEXT:    [[AB_ELT_ELT:%.*]] = extractvalue [[B:%.*]] [[AB_ELT]], 0
; CHECK-NEXT:    store ptr [[AB_ELT_ELT]], ptr [[AB_PTR:%.*]], align 8
; CHECK-NEXT:    [[AB_PTR_REPACK3:%.*]] = getelementptr inbounds [[B]], ptr [[AB_PTR]], i64 0, i32 1
; CHECK-NEXT:    [[AB_ELT_ELT4:%.*]] = extractvalue [[B]] [[AB_ELT]], 1
; CHECK-NEXT:    store i64 [[AB_ELT_ELT4]], ptr [[AB_PTR_REPACK3]], align 8
; CHECK-NEXT:    [[AB_PTR_REPACK1:%.*]] = getelementptr inbounds [2 x %B], ptr [[AB_PTR]], i64 0, i64 1
; CHECK-NEXT:    [[AB_ELT2:%.*]] = extractvalue [2 x %B] [[AB]], 1
; CHECK-NEXT:    [[AB_ELT2_ELT:%.*]] = extractvalue [[B]] [[AB_ELT2]], 0
; CHECK-NEXT:    store ptr [[AB_ELT2_ELT]], ptr [[AB_PTR_REPACK1]], align 8
; CHECK-NEXT:    [[AB_PTR_REPACK1_REPACK5:%.*]] = getelementptr inbounds [2 x %B], ptr [[AB_PTR]], i64 0, i64 1, i32 1
; CHECK-NEXT:    [[AB_ELT2_ELT6:%.*]] = extractvalue [[B]] [[AB_ELT2]], 1
; CHECK-NEXT:    store i64 [[AB_ELT2_ELT6]], ptr [[AB_PTR_REPACK1_REPACK5]], align 8
; CHECK-NEXT:    ret void
;
  store [2 x %B] %ab, ptr %ab.ptr, align 8
  ret void
}

define %A @loadA(ptr %a.ptr) {
; CHECK-LABEL: @loadA(
; CHECK-NEXT:    [[DOTUNPACK:%.*]] = load ptr, ptr [[A_PTR:%.*]], align 8
; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue [[A:%.*]] poison, ptr [[DOTUNPACK]], 0
; CHECK-NEXT:    ret [[A]] [[TMP1]]
;
  %1 = load %A, ptr %a.ptr, align 8
  ret %A %1
}

define %B @loadB(ptr %b.ptr) {
; CHECK-LABEL: @loadB(
; CHECK-NEXT:    [[DOTUNPACK:%.*]] = load ptr, ptr [[B_PTR:%.*]], align 8
; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue [[B:%.*]] poison, ptr [[DOTUNPACK]], 0
; CHECK-NEXT:    [[DOTELT1:%.*]] = getelementptr inbounds [[B]], ptr [[B_PTR]], i64 0, i32 1
; CHECK-NEXT:    [[DOTUNPACK2:%.*]] = load i64, ptr [[DOTELT1]], align 8
; CHECK-NEXT:    [[TMP2:%.*]] = insertvalue [[B]] [[TMP1]], i64 [[DOTUNPACK2]], 1
; CHECK-NEXT:    ret [[B]] [[TMP2]]
;
  %1 = load %B, ptr %b.ptr, align 8
  ret %B %1
}

define { %A } @loadStructOfA(ptr %sa.ptr) {
; CHECK-LABEL: @loadStructOfA(
; CHECK-NEXT:    [[DOTUNPACK_UNPACK:%.*]] = load ptr, ptr [[SA_PTR:%.*]], align 8
; CHECK-NEXT:    [[DOTUNPACK1:%.*]] = insertvalue [[A:%.*]] poison, ptr [[DOTUNPACK_UNPACK]], 0
; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { [[A]] } poison, [[A]] [[DOTUNPACK1]], 0
; CHECK-NEXT:    ret { [[A]] } [[TMP1]]
;
  %1 = load { %A }, ptr %sa.ptr, align 8
  ret { %A } %1
}

define [1 x %A] @loadArrayOfA(ptr %aa.ptr) {
; CHECK-LABEL: @loadArrayOfA(
; CHECK-NEXT:    [[DOTUNPACK_UNPACK:%.*]] = load ptr, ptr [[AA_PTR:%.*]], align 8
; CHECK-NEXT:    [[DOTUNPACK1:%.*]] = insertvalue [[A:%.*]] poison, ptr [[DOTUNPACK_UNPACK]], 0
; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue [1 x %A] poison, [[A]] [[DOTUNPACK1]], 0
; CHECK-NEXT:    ret [1 x %A] [[TMP1]]
;
  %1 = load [1 x %A], ptr %aa.ptr, align 8
  ret [1 x %A] %1
}

define { [1 x %A] } @loadStructOfArrayOfA(ptr %saa.ptr) {
; CHECK-LABEL: @loadStructOfArrayOfA(
; CHECK-NEXT:    [[DOTUNPACK_UNPACK_UNPACK:%.*]] = load ptr, ptr [[SAA_PTR:%.*]], align 8
; CHECK-NEXT:    [[DOTUNPACK_UNPACK2:%.*]] = insertvalue [[A:%.*]] poison, ptr [[DOTUNPACK_UNPACK_UNPACK]], 0
; CHECK-NEXT:    [[DOTUNPACK1:%.*]] = insertvalue [1 x %A] poison, [[A]] [[DOTUNPACK_UNPACK2]], 0
; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { [1 x %A] } poison, [1 x %A] [[DOTUNPACK1]], 0
; CHECK-NEXT:    ret { [1 x %A] } [[TMP1]]
;
  %1 = load { [1 x %A] }, ptr %saa.ptr, align 8
  ret { [1 x %A] } %1
}

define { %A } @structOfA(ptr %sa.ptr) {
; CHECK-LABEL: @structOfA(
; CHECK-NEXT:    store ptr @A__vtblZ, ptr [[SA_PTR:%.*]], align 8
; CHECK-NEXT:    ret { [[A:%.*]] } { [[A]] { ptr @A__vtblZ } }
;
  store { %A } { %A { ptr @A__vtblZ } }, ptr %sa.ptr, align 8
  %1 = load { %A }, ptr %sa.ptr, align 8
  ret { %A } %1
}

define %B @structB(ptr %b.ptr) {
; CHECK-LABEL: @structB(
; CHECK-NEXT:    store ptr null, ptr [[B_PTR:%.*]], align 8
; CHECK-NEXT:    [[B_PTR_REPACK1:%.*]] = getelementptr inbounds [[B:%.*]], ptr [[B_PTR]], i64 0, i32 1
; CHECK-NEXT:    store i64 42, ptr [[B_PTR_REPACK1]], align 8
; CHECK-NEXT:    ret [[B]] { ptr null, i64 42 }
;
  store %B { ptr null, i64 42 }, ptr %b.ptr, align 8
  %1 = load %B, ptr %b.ptr, align 8
  ret %B %1
}

define [2 x %B] @loadArrayOfB(ptr %ab.ptr) {
; CHECK-LABEL: @loadArrayOfB(
; CHECK-NEXT:    [[DOTUNPACK_UNPACK:%.*]] = load ptr, ptr [[AB_PTR:%.*]], align 8
; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue [[B:%.*]] poison, ptr [[DOTUNPACK_UNPACK]], 0
; CHECK-NEXT:    [[DOTUNPACK_ELT3:%.*]] = getelementptr inbounds [[B]], ptr [[AB_PTR]], i64 0, i32 1
; CHECK-NEXT:    [[DOTUNPACK_UNPACK4:%.*]] = load i64, ptr [[DOTUNPACK_ELT3]], align 8
; CHECK-NEXT:    [[DOTUNPACK5:%.*]] = insertvalue [[B]] [[TMP1]], i64 [[DOTUNPACK_UNPACK4]], 1
; CHECK-NEXT:    [[TMP2:%.*]] = insertvalue [2 x %B] poison, [[B]] [[DOTUNPACK5]], 0
; CHECK-NEXT:    [[DOTELT1:%.*]] = getelementptr inbounds [2 x %B], ptr [[AB_PTR]], i64 0, i64 1
; CHECK-NEXT:    [[DOTUNPACK2_UNPACK:%.*]] = load ptr, ptr [[DOTELT1]], align 8
; CHECK-NEXT:    [[TMP3:%.*]] = insertvalue [[B]] poison, ptr [[DOTUNPACK2_UNPACK]], 0
; CHECK-NEXT:    [[DOTUNPACK2_ELT6:%.*]] = getelementptr inbounds [2 x %B], ptr [[AB_PTR]], i64 0, i64 1, i32 1
; CHECK-NEXT:    [[DOTUNPACK2_UNPACK7:%.*]] = load i64, ptr [[DOTUNPACK2_ELT6]], align 8
; CHECK-NEXT:    [[DOTUNPACK28:%.*]] = insertvalue [[B]] [[TMP3]], i64 [[DOTUNPACK2_UNPACK7]], 1
; CHECK-NEXT:    [[TMP4:%.*]] = insertvalue [2 x %B] [[TMP2]], [[B]] [[DOTUNPACK28]], 1
; CHECK-NEXT:    ret [2 x %B] [[TMP4]]
;
  %1 = load [2 x %B], ptr %ab.ptr, align 8
  ret [2 x %B] %1
}

define [2000 x %B] @loadLargeArrayOfB(ptr %ab.ptr) {
; CHECK-LABEL: @loadLargeArrayOfB(
; CHECK-NEXT:    [[TMP1:%.*]] = load [2000 x %B], ptr [[AB_PTR:%.*]], align 8
; CHECK-NEXT:    ret [2000 x %B] [[TMP1]]
;
  %1 = load [2000 x %B], ptr %ab.ptr, align 8
  ret [2000 x %B] %1
}

%struct.S = type <{ i8, %struct.T }>
%struct.T = type { i32, i32 }

; Make sure that we do not increase alignment of packed struct element
define i32 @packed_alignment(ptr dereferenceable(9) %s) {
; CHECK-LABEL: @packed_alignment(
; CHECK-NEXT:    [[TV_ELT1:%.*]] = getelementptr inbounds [[STRUCT_S:%.*]], ptr [[S:%.*]], i64 0, i32 1, i32 1
; CHECK-NEXT:    [[TV_UNPACK2:%.*]] = load i32, ptr [[TV_ELT1]], align 1
; CHECK-NEXT:    ret i32 [[TV_UNPACK2]]
;
  %t = getelementptr inbounds %struct.S, ptr %s, i32 0, i32 1
  %tv = load %struct.T, ptr %t, align 1
  %v = extractvalue %struct.T %tv, 1
  ret i32 %v
}

%struct.U = type {i8, i8, i8, i8, i8, i8, i8, i8, i64}

define void @check_alignment(ptr %u, ptr %v) {
; CHECK-LABEL: @check_alignment(
; CHECK-NEXT:    [[DOTUNPACK:%.*]] = load i8, ptr [[U:%.*]], align 8
; CHECK-NEXT:    [[DOTELT1:%.*]] = getelementptr inbounds [[STRUCT_U:%.*]], ptr [[U]], i64 0, i32 1
; CHECK-NEXT:    [[DOTUNPACK2:%.*]] = load i8, ptr [[DOTELT1]], align 1
; CHECK-NEXT:    [[DOTELT3:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[U]], i64 0, i32 2
; CHECK-NEXT:    [[DOTUNPACK4:%.*]] = load i8, ptr [[DOTELT3]], align 2
; CHECK-NEXT:    [[DOTELT5:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[U]], i64 0, i32 3
; CHECK-NEXT:    [[DOTUNPACK6:%.*]] = load i8, ptr [[DOTELT5]], align 1
; CHECK-NEXT:    [[DOTELT7:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[U]], i64 0, i32 4
; CHECK-NEXT:    [[DOTUNPACK8:%.*]] = load i8, ptr [[DOTELT7]], align 4
; CHECK-NEXT:    [[DOTELT9:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[U]], i64 0, i32 5
; CHECK-NEXT:    [[DOTUNPACK10:%.*]] = load i8, ptr [[DOTELT9]], align 1
; CHECK-NEXT:    [[DOTELT11:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[U]], i64 0, i32 6
; CHECK-NEXT:    [[DOTUNPACK12:%.*]] = load i8, ptr [[DOTELT11]], align 2
; CHECK-NEXT:    [[DOTELT13:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[U]], i64 0, i32 7
; CHECK-NEXT:    [[DOTUNPACK14:%.*]] = load i8, ptr [[DOTELT13]], align 1
; CHECK-NEXT:    [[DOTELT15:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[U]], i64 0, i32 8
; CHECK-NEXT:    [[DOTUNPACK16:%.*]] = load i64, ptr [[DOTELT15]], align 8
; CHECK-NEXT:    store i8 [[DOTUNPACK]], ptr [[V:%.*]], align 8
; CHECK-NEXT:    [[V_REPACK17:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 1
; CHECK-NEXT:    store i8 [[DOTUNPACK2]], ptr [[V_REPACK17]], align 1
; CHECK-NEXT:    [[V_REPACK19:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 2
; CHECK-NEXT:    store i8 [[DOTUNPACK4]], ptr [[V_REPACK19]], align 2
; CHECK-NEXT:    [[V_REPACK21:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 3
; CHECK-NEXT:    store i8 [[DOTUNPACK6]], ptr [[V_REPACK21]], align 1
; CHECK-NEXT:    [[V_REPACK23:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 4
; CHECK-NEXT:    store i8 [[DOTUNPACK8]], ptr [[V_REPACK23]], align 4
; CHECK-NEXT:    [[V_REPACK25:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 5
; CHECK-NEXT:    store i8 [[DOTUNPACK10]], ptr [[V_REPACK25]], align 1
; CHECK-NEXT:    [[V_REPACK27:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 6
; CHECK-NEXT:    store i8 [[DOTUNPACK12]], ptr [[V_REPACK27]], align 2
; CHECK-NEXT:    [[V_REPACK29:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 7
; CHECK-NEXT:    store i8 [[DOTUNPACK14]], ptr [[V_REPACK29]], align 1
; CHECK-NEXT:    [[V_REPACK31:%.*]] = getelementptr inbounds [[STRUCT_U]], ptr [[V]], i64 0, i32 8
; CHECK-NEXT:    store i64 [[DOTUNPACK16]], ptr [[V_REPACK31]], align 8
; CHECK-NEXT:    ret void
;
  %1 = load %struct.U, ptr %u
  store %struct.U %1, ptr %v
  ret void
}