xref: /llvm-project/llvm/test/Transforms/Scalarizer/phi-order.ll (revision d0a125a1e6860ae8c621171cff3b5b6fb92a4aa2)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt %s -passes='function(scalarizer)' -S -o - | FileCheck %s
3
4; This input caused the scalarizer to insert non-PHI nodes
5; in between PHI nodes (%1 and %2).
6
7define <3 x float> @func(i32 %inval) {
8; CHECK-LABEL: @func(
9; CHECK-NEXT:  .entry:
10; CHECK-NEXT:    br label [[TMP0:%.*]]
11; CHECK:       0:
12; CHECK-NEXT:    [[DOTI01:%.*]] = phi float [ 0.000000e+00, [[DOTENTRY:%.*]] ], [ [[DOTI01]], [[TMP3:%.*]] ]
13; CHECK-NEXT:    [[DOTI12:%.*]] = phi float [ 0.000000e+00, [[DOTENTRY]] ], [ [[DOTI12]], [[TMP3]] ]
14; CHECK-NEXT:    [[DOTI23:%.*]] = phi float [ 0.000000e+00, [[DOTENTRY]] ], [ [[DOTI23]], [[TMP3]] ]
15; CHECK-NEXT:    [[TMP1:%.*]] = phi float [ 1.000000e+00, [[DOTENTRY]] ], [ 2.000000e+00, [[TMP3]] ]
16; CHECK-NEXT:    [[DOTUPTO0:%.*]] = insertelement <3 x float> poison, float [[DOTI01]], i64 0
17; CHECK-NEXT:    [[DOTUPTO1:%.*]] = insertelement <3 x float> [[DOTUPTO0]], float [[DOTI12]], i64 1
18; CHECK-NEXT:    [[TMP2:%.*]] = insertelement <3 x float> [[DOTUPTO1]], float [[DOTI23]], i64 2
19; CHECK-NEXT:    br label [[TMP3]]
20; CHECK:       3:
21; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[INVAL:%.*]], 0
22; CHECK-NEXT:    br i1 [[COND]], label [[TMP0]], label [[EXIT:%.*]]
23; CHECK:       exit:
24; CHECK-NEXT:    ret <3 x float> [[TMP2]]
25;
26.entry:
27  br label %0
28
290:                                                ; preds = %3, %.entry
30  %1 = phi <3 x float> [ <float 0.0, float 0.0, float 0.0>, %.entry], [ %1, %3 ]
31  %2 = phi float [ 1.0, %.entry], [ 2.0, %3 ]
32  br label %3
33
343:                                                ; preds = %0
35  %cond = icmp eq i32 %inval, 0
36  br i1 %cond, label %0, label %exit
37
38exit:
39  ret <3 x float>  %1
40}
41
42