[SLP][NFC]Update the test by replacing undefs with constant values, NFC

Author: alexey-bataev

llvm/test/Transforms/SLPVectorizer/X86/malformed_phis.ll

@@ -10,9 +10,9 @@ define void @test() #0 {
 ; CHECK-NEXT:  bb:
 ; CHECK-NEXT:    br label [[BB1:%.*]]
 ; CHECK:       bb1:
-; CHECK-NEXT:    [[TMP:%.*]] = phi i32 [ undef, [[BB1]] ], [ undef, [[BB:%.*]] ]
-; CHECK-NEXT:    [[TMP2:%.*]] = phi i32 [ [[TMP18:%.*]], [[BB1]] ], [ undef, [[BB]] ]
-; CHECK-NEXT:    [[TMP3:%.*]] = mul i32 undef, [[TMP]]
+; CHECK-NEXT:    [[TMP:%.*]] = phi i32 [ 1, [[BB1]] ], [ 2, [[BB:%.*]] ]
+; CHECK-NEXT:    [[TMP2:%.*]] = phi i32 [ [[TMP18:%.*]], [[BB1]] ], [ 3, [[BB]] ]
+; CHECK-NEXT:    [[TMP3:%.*]] = mul i32 4, [[TMP]]
 ; CHECK-NEXT:    [[TMP4:%.*]] = mul i32 [[TMP3]], [[TMP]]
 ; CHECK-NEXT:    [[TMP5:%.*]] = mul i32 [[TMP4]], [[TMP]]
 ; CHECK-NEXT:    [[TMP6:%.*]] = mul i32 [[TMP5]], [[TMP]]
@@ -34,9 +34,9 @@ bb:
   br label %bb1
 
 bb1:                                              ; preds = %bb1, %bb
-  %tmp = phi i32 [ undef, %bb1 ], [ undef, %bb ]
-  %tmp2 = phi i32 [ %tmp18, %bb1 ], [ undef, %bb ]
-  %tmp3 = mul i32 undef, %tmp
+  %tmp = phi i32 [ 1, %bb1 ], [ 2, %bb ]
+  %tmp2 = phi i32 [ %tmp18, %bb1 ], [ 3, %bb ]
+  %tmp3 = mul i32 4, %tmp
   %tmp4 = mul i32 %tmp3, %tmp
   %tmp5 = mul i32 %tmp4, %tmp
   %tmp6 = mul i32 %tmp5, %tmp
@@ -60,35 +60,35 @@ define void @test_2(ptr addrspace(1) %arg, i32 %arg1) #0 {
 ; CHECK-NEXT:  bb:
 ; CHECK-NEXT:    br label [[BB2:%.*]]
 ; CHECK:       bb2:
-; CHECK-NEXT:    [[TMP:%.*]] = phi i32 [ undef, [[BB:%.*]] ], [ undef, [[BB2]] ]
-; CHECK-NEXT:    [[TMP3:%.*]] = phi i32 [ 0, [[BB]] ], [ undef, [[BB2]] ]
+; CHECK-NEXT:    [[TMP:%.*]] = phi i32 [ 3, [[BB:%.*]] ], [ 3, [[BB2]] ]
+; CHECK-NEXT:    [[TMP3:%.*]] = phi i32 [ 0, [[BB]] ], [ 3, [[BB2]] ]
 ; CHECK-NEXT:    [[TMP0:%.*]] = mul i32 [[TMP]], 8
-; CHECK-NEXT:    [[OP_RDX:%.*]] = add i32 undef, [[TMP0]]
+; CHECK-NEXT:    [[OP_RDX:%.*]] = add i32 27, [[TMP0]]
 ; CHECK-NEXT:    call void @use(i32 [[OP_RDX]])
 ; CHECK-NEXT:    br label [[BB2]]
 ;
 bb:
   br label %bb2
 
 bb2:                                              ; preds = %bb2, %bb
-  %tmp = phi i32 [ undef, %bb ], [ undef, %bb2 ]
-  %tmp3 = phi i32 [ 0, %bb ], [ undef, %bb2 ]
-  %tmp4 = add i32 %tmp, undef
-  %tmp5 = add i32 undef, %tmp4
+  %tmp = phi i32 [ 3, %bb ], [ 3, %bb2 ]
+  %tmp3 = phi i32 [ 0, %bb ], [ 3, %bb2 ]
+  %tmp4 = add i32 %tmp, 3
+  %tmp5 = add i32 3, %tmp4
   %tmp6 = add i32 %tmp, %tmp5
-  %tmp7 = add i32 undef, %tmp6
+  %tmp7 = add i32 3, %tmp6
   %tmp8 = add i32 %tmp, %tmp7
-  %tmp9 = add i32 undef, %tmp8
+  %tmp9 = add i32 3, %tmp8
   %tmp10 = add i32 %tmp, %tmp9
-  %tmp11 = add i32 undef, %tmp10
+  %tmp11 = add i32 3, %tmp10
   %tmp12 = add i32 %tmp, %tmp11
-  %tmp13 = add i32 undef, %tmp12
+  %tmp13 = add i32 3, %tmp12
   %tmp14 = add i32 %tmp, %tmp13
-  %tmp15 = add i32 undef, %tmp14
+  %tmp15 = add i32 3, %tmp14
   %tmp16 = add i32 %tmp, %tmp15
-  %tmp17 = add i32 undef, %tmp16
+  %tmp17 = add i32 3, %tmp16
   %tmp18 = add i32 %tmp, %tmp17
-  %tmp19 = add i32 undef, %tmp18
+  %tmp19 = add i32 3, %tmp18
   call void @use(i32 %tmp19)
   br label %bb2
 }
@@ -103,8 +103,8 @@ define i64 @test_3() #0 {
 ; CHECK:       bb2:
 ; CHECK-NEXT:    br label [[BB3]]
 ; CHECK:       bb3:
-; CHECK-NEXT:    [[VAL:%.*]] = phi i32 [ undef, [[BB1]] ], [ undef, [[BB2:%.*]] ]
-; CHECK-NEXT:    [[VAL4:%.*]] = phi i32 [ undef, [[BB1]] ], [ undef, [[BB2]] ]
+; CHECK-NEXT:    [[VAL:%.*]] = phi i32 [ 3, [[BB1]] ], [ 3, [[BB2:%.*]] ]
+; CHECK-NEXT:    [[VAL4:%.*]] = phi i32 [ 3, [[BB1]] ], [ 3, [[BB2]] ]
 ; CHECK-NEXT:    [[TMP0:%.*]] = insertelement <32 x i32> poison, i32 [[VAL4]], i32 0
 ; CHECK-NEXT:    [[TMP1:%.*]] = shufflevector <32 x i32> [[TMP0]], <32 x i32> poison, <32 x i32> zeroinitializer
 ; CHECK-NEXT:    [[TMP2:%.*]] = call i32 @llvm.vector.reduce.mul.v32i32(<32 x i32> [[TMP1]])
@@ -136,7 +136,7 @@ define i64 @test_3() #0 {
 ; CHECK-NEXT:    [[OP_RDX25:%.*]] = mul i32 [[OP_RDX21]], [[OP_RDX22]]
 ; CHECK-NEXT:    [[OP_RDX26:%.*]] = mul i32 [[OP_RDX23]], [[OP_RDX24]]
 ; CHECK-NEXT:    [[OP_RDX27:%.*]] = mul i32 [[OP_RDX25]], [[OP_RDX26]]
-; CHECK-NEXT:    [[VAL64:%.*]] = add i32 undef, [[OP_RDX27]]
+; CHECK-NEXT:    [[VAL64:%.*]] = add i32 3, [[OP_RDX27]]
 ; CHECK-NEXT:    [[VAL65:%.*]] = sext i32 [[VAL64]] to i64
 ; CHECK-NEXT:    ret i64 [[VAL65]]
 ;
@@ -150,8 +150,8 @@ bb2:                                              ; No predecessors!
   br label %bb3
 
 bb3:                                              ; preds = %bb2, %bb1
-  %val = phi i32 [ undef, %bb1 ], [ undef, %bb2 ]
-  %val4 = phi i32 [ undef, %bb1 ], [ undef, %bb2 ]
+  %val = phi i32 [ 3, %bb1 ], [ 3, %bb2 ]
+  %val4 = phi i32 [ 3, %bb1 ], [ 3, %bb2 ]
   %val5 = mul i32 %val, %val4
   %val6 = mul i32 %val5, %val4
   %val7 = mul i32 %val6, %val4
@@ -211,7 +211,7 @@ bb3:                                              ; preds = %bb2, %bb1
   %val61 = mul i32 %val60, %val4
   %val62 = mul i32 %val61, %val4
   %val63 = mul i32 %val62, %val4
-  %val64 = add i32 undef, %val63
+  %val64 = add i32 3, %val63
   %val65 = sext i32 %val64 to i64
   ret i64 %val65
 }