llvm/test/Transforms/Scalarizer/phi-order.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt %s -passes='function(scalarizer)' -S -o - | FileCheck %s

; This input caused the scalarizer to insert non-PHI nodes
; in between PHI nodes (%1 and %2).

define <3 x float> @func(i32 %inval) {
; CHECK-LABEL: @func(
; CHECK-NEXT:  .entry:
; CHECK-NEXT:    br label [[TMP0:%.*]]
; CHECK:       0:
; CHECK-NEXT:    [[DOTI01:%.*]] = phi float [ 0.000000e+00, [[DOTENTRY:%.*]] ], [ [[DOTI01]], [[TMP3:%.*]] ]
; CHECK-NEXT:    [[DOTI12:%.*]] = phi float [ 0.000000e+00, [[DOTENTRY]] ], [ [[DOTI12]], [[TMP3]] ]
; CHECK-NEXT:    [[DOTI23:%.*]] = phi float [ 0.000000e+00, [[DOTENTRY]] ], [ [[DOTI23]], [[TMP3]] ]
; CHECK-NEXT:    [[TMP1:%.*]] = phi float [ 1.000000e+00, [[DOTENTRY]] ], [ 2.000000e+00, [[TMP3]] ]
; CHECK-NEXT:    [[DOTUPTO0:%.*]] = insertelement <3 x float> poison, float [[DOTI01]], i32 0
; CHECK-NEXT:    [[DOTUPTO1:%.*]] = insertelement <3 x float> [[DOTUPTO0]], float [[DOTI12]], i32 1
; CHECK-NEXT:    [[TMP2:%.*]] = insertelement <3 x float> [[DOTUPTO1]], float [[DOTI23]], i32 2
; CHECK-NEXT:    br label [[TMP3]]
; CHECK:       3:
; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[INVAL:%.*]], 0
; CHECK-NEXT:    br i1 [[COND]], label [[TMP0]], label [[EXIT:%.*]]
; CHECK:       exit:
; CHECK-NEXT:    ret <3 x float> [[TMP2]]
;
.entry:
  br label %0

0:                                                ; preds = %3, %.entry
  %1 = phi <3 x float> [ <float 0.0, float 0.0, float 0.0>, %.entry], [ %1, %3 ]
  %2 = phi float [ 1.0, %.entry], [ 2.0, %3 ]
  br label %3

3:                                                ; preds = %0
  %cond = icmp eq i32 %inval, 0
  br i1 %cond, label %0, label %exit

exit:
  ret <3 x float>  %1
}