pr62563.ll | Explore in Territory

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt -loop-reduce -S < %s | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; XFAIL: *

define void @test() {
; CHECK-LABEL: define void @test() {
; CHECK-NEXT:  bb:
; CHECK-NEXT:    br label [[BB3:%.*]]
; CHECK:       bb3:
; CHECK-NEXT:    [[LSR_IV:%.*]] = phi i32 [ [[LSR_IV_NEXT:%.*]], [[BB3]] ], [ 159, [[BB:%.*]] ]
; CHECK-NEXT:    [[PHI:%.*]] = phi i64 [ 158, [[BB]] ], [ [[ADD5:%.*]], [[BB3]] ]
; CHECK-NEXT:    [[PHI4:%.*]] = phi i32 [ 0, [[BB]] ], [ [[ADD6:%.*]], [[BB3]] ]
; CHECK-NEXT:    [[ADD5]] = add i64 [[PHI]], -4
; CHECK-NEXT:    [[ADD6]] = add i32 [[PHI4]], 4
; CHECK-NEXT:    [[LSR_IV_NEXT]] = add nsw i32 [[LSR_IV]], -4
; CHECK-NEXT:    [[ICMP:%.*]] = icmp ult i64 [[ADD5]], 7
; CHECK-NEXT:    br i1 [[ICMP]], label [[BB7:%.*]], label [[BB3]]
; CHECK:       bb7:
; CHECK-NEXT:    [[UMAX7:%.*]] = call i32 @llvm.umax.i32(i32 [[LSR_IV_NEXT]], i32 10)
; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[UMAX7]], [[ADD6]]
; CHECK-NEXT:    [[UMIN6:%.*]] = call i32 @llvm.umin.i32(i32 [[LSR_IV_NEXT]], i32 11)
; CHECK-NEXT:    [[TMP1:%.*]] = add i32 [[UMIN6]], [[ADD6]]
; CHECK-NEXT:    [[SMAX5:%.*]] = call i32 @llvm.smax.i32(i32 [[LSR_IV_NEXT]], i32 10)
; CHECK-NEXT:    [[TMP2:%.*]] = add i32 [[SMAX5]], [[ADD6]]
; CHECK-NEXT:    [[SMIN4:%.*]] = call i32 @llvm.smin.i32(i32 [[LSR_IV_NEXT]], i32 10)
; CHECK-NEXT:    [[TMP3:%.*]] = add i32 [[SMIN4]], [[ADD6]]
; CHECK-NEXT:    call void @use.umax.res(i32 [[TMP0]])
; CHECK-NEXT:    call void @use.umin.res(i32 [[TMP1]])
; CHECK-NEXT:    call void @use.smax.res(i32 [[TMP2]])
; CHECK-NEXT:    call void @use.smin.res(i32 [[TMP3]])
; CHECK-NEXT:    ret void
;
bb:
  br label %bb3

bb3:                                              ; preds = %bb3, %bb
  %phi = phi i64 [ 158, %bb ], [ %add5, %bb3 ]
  %phi4 = phi i32 [ 0, %bb ], [ %add6, %bb3 ]
  %add = add i64 %phi, -3
  %trunc = trunc i64 %add to i32
  %umax = call i32 @llvm.umax.i32(i32 %trunc, i32 10)
  %umin = call i32 @llvm.umin.i32(i32 %trunc, i32 11)
  %smax = call i32 @llvm.smax.i32(i32 %trunc, i32 10)
  %smin = call i32 @llvm.smin.i32(i32 %trunc, i32 10)
  %add5 = add i64 %phi, -4
  %add6 = add i32 %phi4, 4
  %icmp = icmp ult i64 %add5, 7
  br i1 %icmp, label %bb7, label %bb3

bb7:                                              ; preds = %bb3
  %umax.res = add i32 %add6, %umax
  %umin.res = add i32 %add6, %umin
  %smax.res = add i32 %add6, %smax
  %smin.res = add i32 %add6, %smin
  call void @use.umax.res(i32 %umax.res)
  call void @use.umin.res(i32 %umin.res)
  call void @use.smax.res(i32 %smax.res)
  call void @use.smin.res(i32 %smin.res)
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.umax.i32(i32, i32) #0
declare i32 @llvm.umin.i32(i32, i32) #0
declare i32 @llvm.smax.i32(i32, i32) #0
declare i32 @llvm.smin.i32(i32, i32) #0

declare void @use.umax.res(i32)
declare void @use.umin.res(i32)
declare void @use.smax.res(i32)
declare void @use.smin.res(i32)

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
llvm/llvm/test/Transforms/LoopStrengthReduce/X86/pr62563.ll
