xref: /llvm-project/llvm/test/Transforms/SimplifyCFG/ARM/phi-eliminate.ll (revision d1d129356909af2f6fefd6f1b9335a39fe172e9a)

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple=thumbv8m.main < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -two-entry-phi-node-folding-threshold=4 | FileCheck %s --check-prefixes=CHECK-TWO-FOLD-4,CHECK-V8M-TWO-FOLD-4
; RUN: opt -mtriple=armv8a < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -two-entry-phi-node-folding-threshold=4 | FileCheck %s --check-prefixes=CHECK-TWO-FOLD-4,CHECK-V8A-TWO-FOLD-4
; RUN: opt -mtriple=thumbv8m.main < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -two-entry-phi-node-folding-threshold=5 | FileCheck %s --check-prefixes=CHECK-TWO-FOLD-5,CHECK-V8M-TWO-FOLD-5
; RUN: opt -mtriple=armv8a < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -two-entry-phi-node-folding-threshold=5 | FileCheck %s --check-prefixes=CHECK-TWO-FOLD-5,CHECK-V8A-TWO-FOLD-5
; RUN: opt -mtriple=thumbv8m.main < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -two-entry-phi-node-folding-threshold=6 | FileCheck %s --check-prefixes=CHECK-TWO-FOLD-6,CHECK-V8M-TWO-FOLD-6
; RUN: opt -mtriple=armv8a < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -two-entry-phi-node-folding-threshold=6 | FileCheck %s --check-prefixes=CHECK-TWO-FOLD-6,CHECK-V8A-TWO-FOLD-6

define i32 @test_i32(i1 %a, i1 %b, i32 %i, i32 %j, i32 %k) {
; CHECK-TWO-FOLD-4-LABEL: @test_i32(
; CHECK-TWO-FOLD-4-NEXT:  entry:
; CHECK-TWO-FOLD-4-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-TWO-FOLD-4:       O:
; CHECK-TWO-FOLD-4-NEXT:    [[IAJ:%.*]] = add i32 [[I:%.*]], [[J:%.*]]
; CHECK-TWO-FOLD-4-NEXT:    [[IAJAK:%.*]] = add i32 [[IAJ]], [[K:%.*]]
; CHECK-TWO-FOLD-4-NEXT:    [[IXJ:%.*]] = xor i32 [[I]], [[J]]
; CHECK-TWO-FOLD-4-NEXT:    [[IXJXK:%.*]] = xor i32 [[IXJ]], [[K]]
; CHECK-TWO-FOLD-4-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i32 [[IAJAK]], i32 [[IXJXK]]
; CHECK-TWO-FOLD-4-NEXT:    [[WP2:%.*]] = add i32 [[WP]], [[WP]]
; CHECK-TWO-FOLD-4-NEXT:    br label [[M]]
; CHECK-TWO-FOLD-4:       M:
; CHECK-TWO-FOLD-4-NEXT:    [[W:%.*]] = phi i32 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-TWO-FOLD-4-NEXT:    [[R:%.*]] = add i32 [[W]], 1
; CHECK-TWO-FOLD-4-NEXT:    ret i32 [[R]]
;
; CHECK-TWO-FOLD-5-LABEL: @test_i32(
; CHECK-TWO-FOLD-5-NEXT:  entry:
; CHECK-TWO-FOLD-5-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-TWO-FOLD-5:       O:
; CHECK-TWO-FOLD-5-NEXT:    [[IAJ:%.*]] = add i32 [[I:%.*]], [[J:%.*]]
; CHECK-TWO-FOLD-5-NEXT:    [[IAJAK:%.*]] = add i32 [[IAJ]], [[K:%.*]]
; CHECK-TWO-FOLD-5-NEXT:    [[IXJ:%.*]] = xor i32 [[I]], [[J]]
; CHECK-TWO-FOLD-5-NEXT:    [[IXJXK:%.*]] = xor i32 [[IXJ]], [[K]]
; CHECK-TWO-FOLD-5-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i32 [[IAJAK]], i32 [[IXJXK]]
; CHECK-TWO-FOLD-5-NEXT:    [[WP2:%.*]] = add i32 [[WP]], [[WP]]
; CHECK-TWO-FOLD-5-NEXT:    br label [[M]]
; CHECK-TWO-FOLD-5:       M:
; CHECK-TWO-FOLD-5-NEXT:    [[W:%.*]] = phi i32 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-TWO-FOLD-5-NEXT:    [[R:%.*]] = add i32 [[W]], 1
; CHECK-TWO-FOLD-5-NEXT:    ret i32 [[R]]
;
; CHECK-TWO-FOLD-6-LABEL: @test_i32(
; CHECK-TWO-FOLD-6-NEXT:  entry:
; CHECK-TWO-FOLD-6-NEXT:    [[IAJ:%.*]] = add i32 [[I:%.*]], [[J:%.*]]
; CHECK-TWO-FOLD-6-NEXT:    [[IAJAK:%.*]] = add i32 [[IAJ]], [[K:%.*]]
; CHECK-TWO-FOLD-6-NEXT:    [[IXJ:%.*]] = xor i32 [[I]], [[J]]
; CHECK-TWO-FOLD-6-NEXT:    [[IXJXK:%.*]] = xor i32 [[IXJ]], [[K]]
; CHECK-TWO-FOLD-6-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i32 [[IAJAK]], i32 [[IXJXK]]
; CHECK-TWO-FOLD-6-NEXT:    [[WP2:%.*]] = add i32 [[WP]], [[WP]]
; CHECK-TWO-FOLD-6-NEXT:    [[W:%.*]] = select i1 [[A:%.*]], i32 2, i32 [[WP2]]
; CHECK-TWO-FOLD-6-NEXT:    [[R:%.*]] = add i32 [[W]], 1
; CHECK-TWO-FOLD-6-NEXT:    ret i32 [[R]]
;
entry:
  br i1 %a, label %M, label %O
O:
  br i1 %b, label %P, label %Q
P:
  %iaj = add i32 %i, %j
  %iajak = add i32 %iaj, %k
  br label %N
Q:
  %ixj = xor i32 %i, %j
  %ixjxk = xor i32 %ixj, %k
  br label %N
N:
  %Wp = phi i32 [ %iajak, %P ], [ %ixjxk, %Q ]
  %Wp2 = add i32 %Wp, %Wp
  br label %M
M:
  %W = phi i32 [ %Wp2, %N ], [ 2, %entry ]
  %R = add i32 %W, 1
  ret i32 %R
}

define i32 @test_i32_minsize(i1 %a, i1 %b, i32 %i, i32 %j, i32 %k) #0 {
; CHECK-TWO-FOLD-4-LABEL: @test_i32_minsize(
; CHECK-TWO-FOLD-4-NEXT:  entry:
; CHECK-TWO-FOLD-4-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-TWO-FOLD-4:       O:
; CHECK-TWO-FOLD-4-NEXT:    [[IAJ:%.*]] = add i32 [[I:%.*]], [[J:%.*]]
; CHECK-TWO-FOLD-4-NEXT:    [[IAJAK:%.*]] = add i32 [[IAJ]], [[K:%.*]]
; CHECK-TWO-FOLD-4-NEXT:    [[IXJ:%.*]] = xor i32 [[I]], [[J]]
; CHECK-TWO-FOLD-4-NEXT:    [[IXJXK:%.*]] = xor i32 [[IXJ]], [[K]]
; CHECK-TWO-FOLD-4-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i32 [[IAJAK]], i32 [[IXJXK]]
; CHECK-TWO-FOLD-4-NEXT:    [[WP2:%.*]] = add i32 [[WP]], [[WP]]
; CHECK-TWO-FOLD-4-NEXT:    br label [[M]]
; CHECK-TWO-FOLD-4:       M:
; CHECK-TWO-FOLD-4-NEXT:    [[W:%.*]] = phi i32 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-TWO-FOLD-4-NEXT:    [[R:%.*]] = add i32 [[W]], 1
; CHECK-TWO-FOLD-4-NEXT:    ret i32 [[R]]
;
; CHECK-TWO-FOLD-5-LABEL: @test_i32_minsize(
; CHECK-TWO-FOLD-5-NEXT:  entry:
; CHECK-TWO-FOLD-5-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-TWO-FOLD-5:       O:
; CHECK-TWO-FOLD-5-NEXT:    [[IAJ:%.*]] = add i32 [[I:%.*]], [[J:%.*]]
; CHECK-TWO-FOLD-5-NEXT:    [[IAJAK:%.*]] = add i32 [[IAJ]], [[K:%.*]]
; CHECK-TWO-FOLD-5-NEXT:    [[IXJ:%.*]] = xor i32 [[I]], [[J]]
; CHECK-TWO-FOLD-5-NEXT:    [[IXJXK:%.*]] = xor i32 [[IXJ]], [[K]]
; CHECK-TWO-FOLD-5-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i32 [[IAJAK]], i32 [[IXJXK]]
; CHECK-TWO-FOLD-5-NEXT:    [[WP2:%.*]] = add i32 [[WP]], [[WP]]
; CHECK-TWO-FOLD-5-NEXT:    br label [[M]]
; CHECK-TWO-FOLD-5:       M:
; CHECK-TWO-FOLD-5-NEXT:    [[W:%.*]] = phi i32 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-TWO-FOLD-5-NEXT:    [[R:%.*]] = add i32 [[W]], 1
; CHECK-TWO-FOLD-5-NEXT:    ret i32 [[R]]
;
; CHECK-TWO-FOLD-6-LABEL: @test_i32_minsize(
; CHECK-TWO-FOLD-6-NEXT:  entry:
; CHECK-TWO-FOLD-6-NEXT:    [[IAJ:%.*]] = add i32 [[I:%.*]], [[J:%.*]]
; CHECK-TWO-FOLD-6-NEXT:    [[IAJAK:%.*]] = add i32 [[IAJ]], [[K:%.*]]
; CHECK-TWO-FOLD-6-NEXT:    [[IXJ:%.*]] = xor i32 [[I]], [[J]]
; CHECK-TWO-FOLD-6-NEXT:    [[IXJXK:%.*]] = xor i32 [[IXJ]], [[K]]
; CHECK-TWO-FOLD-6-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i32 [[IAJAK]], i32 [[IXJXK]]
; CHECK-TWO-FOLD-6-NEXT:    [[WP2:%.*]] = add i32 [[WP]], [[WP]]
; CHECK-TWO-FOLD-6-NEXT:    [[W:%.*]] = select i1 [[A:%.*]], i32 2, i32 [[WP2]]
; CHECK-TWO-FOLD-6-NEXT:    [[R:%.*]] = add i32 [[W]], 1
; CHECK-TWO-FOLD-6-NEXT:    ret i32 [[R]]
;
entry:
  br i1 %a, label %M, label %O
O:
  br i1 %b, label %P, label %Q
P:
  %iaj = add i32 %i, %j
  %iajak = add i32 %iaj, %k
  br label %N
Q:
  %ixj = xor i32 %i, %j
  %ixjxk = xor i32 %ixj, %k
  br label %N
N:
  %Wp = phi i32 [ %iajak, %P ], [ %ixjxk, %Q ]
  %Wp2 = add i32 %Wp, %Wp
  br label %M
M:
  %W = phi i32 [ %Wp2, %N ], [ 2, %entry ]
  %R = add i32 %W, 1
  ret i32 %R
}

define i64 @test_i64(i1 %a, i1 %b, i64 %i, i64 %j, i64 %k) {
; CHECK-V8M-TWO-FOLD-4-LABEL: @test_i64(
; CHECK-V8M-TWO-FOLD-4-NEXT:  entry:
; CHECK-V8M-TWO-FOLD-4-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8M-TWO-FOLD-4:       O:
; CHECK-V8M-TWO-FOLD-4-NEXT:    br i1 [[B:%.*]], label [[P:%.*]], label [[Q:%.*]]
; CHECK-V8M-TWO-FOLD-4:       P:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    br label [[N:%.*]]
; CHECK-V8M-TWO-FOLD-4:       Q:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    br label [[N]]
; CHECK-V8M-TWO-FOLD-4:       N:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[WP:%.*]] = phi i64 [ [[IAJAK]], [[P]] ], [ [[IXJXK]], [[Q]] ]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    br label [[M]]
; CHECK-V8M-TWO-FOLD-4:       M:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[N]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8M-TWO-FOLD-4-NEXT:    ret i64 [[R]]
;
; CHECK-V8A-TWO-FOLD-4-LABEL: @test_i64(
; CHECK-V8A-TWO-FOLD-4-NEXT:  entry:
; CHECK-V8A-TWO-FOLD-4-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8A-TWO-FOLD-4:       O:
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i64 [[IAJAK]], i64 [[IXJXK]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    br label [[M]]
; CHECK-V8A-TWO-FOLD-4:       M:
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8A-TWO-FOLD-4-NEXT:    ret i64 [[R]]
;
; CHECK-V8M-TWO-FOLD-5-LABEL: @test_i64(
; CHECK-V8M-TWO-FOLD-5-NEXT:  entry:
; CHECK-V8M-TWO-FOLD-5-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8M-TWO-FOLD-5:       O:
; CHECK-V8M-TWO-FOLD-5-NEXT:    br i1 [[B:%.*]], label [[P:%.*]], label [[Q:%.*]]
; CHECK-V8M-TWO-FOLD-5:       P:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    br label [[N:%.*]]
; CHECK-V8M-TWO-FOLD-5:       Q:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    br label [[N]]
; CHECK-V8M-TWO-FOLD-5:       N:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[WP:%.*]] = phi i64 [ [[IAJAK]], [[P]] ], [ [[IXJXK]], [[Q]] ]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    br label [[M]]
; CHECK-V8M-TWO-FOLD-5:       M:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[N]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8M-TWO-FOLD-5-NEXT:    ret i64 [[R]]
;
; CHECK-V8A-TWO-FOLD-5-LABEL: @test_i64(
; CHECK-V8A-TWO-FOLD-5-NEXT:  entry:
; CHECK-V8A-TWO-FOLD-5-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8A-TWO-FOLD-5:       O:
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i64 [[IAJAK]], i64 [[IXJXK]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    br label [[M]]
; CHECK-V8A-TWO-FOLD-5:       M:
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8A-TWO-FOLD-5-NEXT:    ret i64 [[R]]
;
; CHECK-V8M-TWO-FOLD-6-LABEL: @test_i64(
; CHECK-V8M-TWO-FOLD-6-NEXT:  entry:
; CHECK-V8M-TWO-FOLD-6-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8M-TWO-FOLD-6:       O:
; CHECK-V8M-TWO-FOLD-6-NEXT:    br i1 [[B:%.*]], label [[P:%.*]], label [[Q:%.*]]
; CHECK-V8M-TWO-FOLD-6:       P:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    br label [[N:%.*]]
; CHECK-V8M-TWO-FOLD-6:       Q:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    br label [[N]]
; CHECK-V8M-TWO-FOLD-6:       N:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[WP:%.*]] = phi i64 [ [[IAJAK]], [[P]] ], [ [[IXJXK]], [[Q]] ]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    br label [[M]]
; CHECK-V8M-TWO-FOLD-6:       M:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[N]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8M-TWO-FOLD-6-NEXT:    ret i64 [[R]]
;
; CHECK-V8A-TWO-FOLD-6-LABEL: @test_i64(
; CHECK-V8A-TWO-FOLD-6-NEXT:  entry:
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i64 [[IAJAK]], i64 [[IXJXK]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[W:%.*]] = select i1 [[A:%.*]], i64 2, i64 [[WP2]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8A-TWO-FOLD-6-NEXT:    ret i64 [[R]]
;
entry:
  br i1 %a, label %M, label %O
O:
  br i1 %b, label %P, label %Q
P:
  %iaj = add i64 %i, %j
  %iajak = add i64 %iaj, %k
  br label %N
Q:
  %ixj = xor i64 %i, %j
  %ixjxk = xor i64 %ixj, %k
  br label %N
N:
  %Wp = phi i64 [ %iajak, %P ], [ %ixjxk, %Q ]
  %Wp2 = add i64 %Wp, %Wp
  br label %M
M:
  %W = phi i64 [ %Wp2, %N ], [ 2, %entry ]
  %R = add i64 %W, 1
  ret i64 %R
}

define i64 @test_i64_minsize(i1 %a, i1 %b, i64 %i, i64 %j, i64 %k) #0 {
; CHECK-V8M-TWO-FOLD-4-LABEL: @test_i64_minsize(
; CHECK-V8M-TWO-FOLD-4-NEXT:  entry:
; CHECK-V8M-TWO-FOLD-4-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8M-TWO-FOLD-4:       O:
; CHECK-V8M-TWO-FOLD-4-NEXT:    br i1 [[B:%.*]], label [[P:%.*]], label [[Q:%.*]]
; CHECK-V8M-TWO-FOLD-4:       P:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    br label [[N:%.*]]
; CHECK-V8M-TWO-FOLD-4:       Q:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    br label [[N]]
; CHECK-V8M-TWO-FOLD-4:       N:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[WP:%.*]] = phi i64 [ [[IAJAK]], [[P]] ], [ [[IXJXK]], [[Q]] ]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8M-TWO-FOLD-4-NEXT:    br label [[M]]
; CHECK-V8M-TWO-FOLD-4:       M:
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[N]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8M-TWO-FOLD-4-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8M-TWO-FOLD-4-NEXT:    ret i64 [[R]]
;
; CHECK-V8A-TWO-FOLD-4-LABEL: @test_i64_minsize(
; CHECK-V8A-TWO-FOLD-4-NEXT:  entry:
; CHECK-V8A-TWO-FOLD-4-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8A-TWO-FOLD-4:       O:
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i64 [[IAJAK]], i64 [[IXJXK]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8A-TWO-FOLD-4-NEXT:    br label [[M]]
; CHECK-V8A-TWO-FOLD-4:       M:
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8A-TWO-FOLD-4-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8A-TWO-FOLD-4-NEXT:    ret i64 [[R]]
;
; CHECK-V8M-TWO-FOLD-5-LABEL: @test_i64_minsize(
; CHECK-V8M-TWO-FOLD-5-NEXT:  entry:
; CHECK-V8M-TWO-FOLD-5-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8M-TWO-FOLD-5:       O:
; CHECK-V8M-TWO-FOLD-5-NEXT:    br i1 [[B:%.*]], label [[P:%.*]], label [[Q:%.*]]
; CHECK-V8M-TWO-FOLD-5:       P:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    br label [[N:%.*]]
; CHECK-V8M-TWO-FOLD-5:       Q:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    br label [[N]]
; CHECK-V8M-TWO-FOLD-5:       N:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[WP:%.*]] = phi i64 [ [[IAJAK]], [[P]] ], [ [[IXJXK]], [[Q]] ]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8M-TWO-FOLD-5-NEXT:    br label [[M]]
; CHECK-V8M-TWO-FOLD-5:       M:
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[N]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8M-TWO-FOLD-5-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8M-TWO-FOLD-5-NEXT:    ret i64 [[R]]
;
; CHECK-V8A-TWO-FOLD-5-LABEL: @test_i64_minsize(
; CHECK-V8A-TWO-FOLD-5-NEXT:  entry:
; CHECK-V8A-TWO-FOLD-5-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8A-TWO-FOLD-5:       O:
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i64 [[IAJAK]], i64 [[IXJXK]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8A-TWO-FOLD-5-NEXT:    br label [[M]]
; CHECK-V8A-TWO-FOLD-5:       M:
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[O]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8A-TWO-FOLD-5-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8A-TWO-FOLD-5-NEXT:    ret i64 [[R]]
;
; CHECK-V8M-TWO-FOLD-6-LABEL: @test_i64_minsize(
; CHECK-V8M-TWO-FOLD-6-NEXT:  entry:
; CHECK-V8M-TWO-FOLD-6-NEXT:    br i1 [[A:%.*]], label [[M:%.*]], label [[O:%.*]]
; CHECK-V8M-TWO-FOLD-6:       O:
; CHECK-V8M-TWO-FOLD-6-NEXT:    br i1 [[B:%.*]], label [[P:%.*]], label [[Q:%.*]]
; CHECK-V8M-TWO-FOLD-6:       P:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    br label [[N:%.*]]
; CHECK-V8M-TWO-FOLD-6:       Q:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    br label [[N]]
; CHECK-V8M-TWO-FOLD-6:       N:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[WP:%.*]] = phi i64 [ [[IAJAK]], [[P]] ], [ [[IXJXK]], [[Q]] ]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8M-TWO-FOLD-6-NEXT:    br label [[M]]
; CHECK-V8M-TWO-FOLD-6:       M:
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[W:%.*]] = phi i64 [ [[WP2]], [[N]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-V8M-TWO-FOLD-6-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8M-TWO-FOLD-6-NEXT:    ret i64 [[R]]
;
; CHECK-V8A-TWO-FOLD-6-LABEL: @test_i64_minsize(
; CHECK-V8A-TWO-FOLD-6-NEXT:  entry:
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IAJ:%.*]] = add i64 [[I:%.*]], [[J:%.*]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IAJAK:%.*]] = add i64 [[IAJ]], [[K:%.*]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IXJ:%.*]] = xor i64 [[I]], [[J]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[IXJXK:%.*]] = xor i64 [[IXJ]], [[K]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[WP:%.*]] = select i1 [[B:%.*]], i64 [[IAJAK]], i64 [[IXJXK]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[WP2:%.*]] = add i64 [[WP]], [[WP]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[W:%.*]] = select i1 [[A:%.*]], i64 2, i64 [[WP2]]
; CHECK-V8A-TWO-FOLD-6-NEXT:    [[R:%.*]] = add i64 [[W]], 1
; CHECK-V8A-TWO-FOLD-6-NEXT:    ret i64 [[R]]
;
entry:
  br i1 %a, label %M, label %O
O:
  br i1 %b, label %P, label %Q
P:
  %iaj = add i64 %i, %j
  %iajak = add i64 %iaj, %k
  br label %N
Q:
  %ixj = xor i64 %i, %j
  %ixjxk = xor i64 %ixj, %k
  br label %N
N:
  %Wp = phi i64 [ %iajak, %P ], [ %ixjxk, %Q ]
  %Wp2 = add i64 %Wp, %Wp
  br label %M
M:
  %W = phi i64 [ %Wp2, %N ], [ 2, %entry ]
  %R = add i64 %W, 1
  ret i64 %R
}

attributes #0 = { minsize optsize }