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; REQUIRES: asserts
; RUN: opt -loop-reduce -debug-only=loop-reduce -S < %s 2>&1 | FileCheck %s
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
;
; %lsr.iv2 and %lsr.iv10 are in same bb, but they are not equal since start
; value are different.
;
; %scevgep = getelementptr [0 x %0], [0 x %0]* %arg, i64 0, i64 99
; %scevgep1 = bitcast %0* %scevgep to [0 x %0]*
; %lsr.iv2 = phi [0 x %0]* [ %1, %bb18 ], [ %scevgep1, %bb ]
;
; %lsr.iv10 = phi [0 x %0]* [ %2, %bb18 ], [ %arg, %bb ]
;
; Make sure two incomplete phis will not be marked as congruent.
;
; CHECK: One incomplete PHI is found: %[[IV:.*]] = phi [0 x %0]*
; CHECK: One incomplete PHI is found: %[[IV2:.*]] = phi [0 x %0]*
; CHECK-NOT: Eliminated congruent iv: %[[IV]]
; CHECK-NOT: Original iv: %[[IV2]]
; CHECK-NOT: Eliminated congruent iv: %[[IV2]]
; CHECK-NOT: Original iv: %[[IV]]
%0 = type <{ float }>
define void @foo([0 x %0]* %arg) {
bb:
%i = getelementptr inbounds [0 x %0], [0 x %0]* %arg, i64 0, i64 -1
%i1 = bitcast %0* %i to i8*
%i2 = getelementptr i8, i8* %i1, i64 4
br label %bb3
bb3: ; preds = %bb18, %bb
%i4 = phi i64 [ %i20, %bb18 ], [ 0, %bb ]
%i5 = phi i64 [ %i21, %bb18 ], [ 1, %bb ]
br i1 undef, label %bb22, label %bb9
bb9: ; preds = %bb9, %bb3
%i10 = phi i64 [ 0, %bb3 ], [ %i16, %bb9 ]
%i11 = add i64 %i10, %i4
%i12 = shl i64 %i11, 2
%i13 = getelementptr i8, i8* %i2, i64 %i12
%i14 = bitcast i8* %i13 to float*
%i15 = bitcast float* %i14 to <4 x float>*
store <4 x float> undef, <4 x float>* %i15, align 4
%i16 = add i64 %i10, 32
br i1 true, label %bb17, label %bb9
bb17: ; preds = %bb9
br i1 undef, label %bb18, label %bb22
bb18: ; preds = %bb17
%i19 = add i64 undef, %i4
%i20 = add i64 %i19, %i5
%i21 = add nuw nsw i64 %i5, 1
br label %bb3
bb22: ; preds = %bb22, %bb17, %bb3
%i23 = phi i64 [ %i26, %bb22 ], [ undef, %bb17 ], [ 100, %bb3 ]
%i24 = add nsw i64 %i23, %i4
%i25 = getelementptr %0, %0* %i, i64 %i24, i32 0
store float undef, float* %i25, align 4
%i26 = add nuw nsw i64 %i23, 1
br label %bb22
}
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