xref: /llvm-project/llvm/test/Transforms/LoopVectorize/X86/constant-fold.ll (revision f48884ded884d982a7fd13394b0e93e6588f4143)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -passes=loop-vectorize -S -mtriple=x86_64-- -o - %s | FileCheck %s
3
4; Testcase that verify that we don't get a faulty bitcast that cast between
5; different sizes.
6
7%rec8 = type { i16 }
8
9@a = global [1 x %rec8] zeroinitializer
10@b = global [2 x ptr] zeroinitializer
11
12
13define void @f1() {
14; CHECK-LABEL: @f1(
15; CHECK-NEXT:  bb1:
16; CHECK-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
17; CHECK:       vector.ph:
18; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
19; CHECK:       vector.body:
20; CHECK-NEXT:    [[TMP0:%.*]] = sext i16 0 to i64
21; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr [2 x ptr], ptr @b, i16 0, i64 [[TMP0]]
22; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr ptr, ptr [[TMP1]], i32 0
23; CHECK-NEXT:    store <2 x ptr> <ptr @a, ptr @a>, ptr [[TMP2]], align 8
24; CHECK-NEXT:    br label [[MIDDLE_BLOCK:%.*]]
25; CHECK:       middle.block:
26; CHECK-NEXT:    br i1 true, label [[BB3:%.*]], label [[SCALAR_PH]]
27; CHECK:       scalar.ph:
28; CHECK-NEXT:    [[BC_RESUME_VAL:%.*]] = phi i16 [ 2, [[MIDDLE_BLOCK]] ], [ 0, [[BB1:%.*]] ]
29; CHECK-NEXT:    br label [[BB2:%.*]]
30; CHECK:       bb2:
31; CHECK-NEXT:    [[C_1_0:%.*]] = phi i16 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[_TMP9:%.*]], [[BB2]] ]
32; CHECK-NEXT:    [[_TMP1:%.*]] = zext i16 0 to i64
33; CHECK-NEXT:    [[_TMP2:%.*]] = getelementptr [1 x %rec8], ptr @a, i16 0, i64 [[_TMP1]]
34; CHECK-NEXT:    [[_TMP6:%.*]] = sext i16 [[C_1_0]] to i64
35; CHECK-NEXT:    [[_TMP7:%.*]] = getelementptr [2 x ptr], ptr @b, i16 0, i64 [[_TMP6]]
36; CHECK-NEXT:    store ptr [[_TMP2]], ptr [[_TMP7]], align 8
37; CHECK-NEXT:    [[_TMP9]] = add nsw i16 [[C_1_0]], 1
38; CHECK-NEXT:    [[_TMP11:%.*]] = icmp slt i16 [[_TMP9]], 2
39; CHECK-NEXT:    br i1 [[_TMP11]], label [[BB2]], label [[BB3]], !llvm.loop [[LOOP0:![0-9]+]]
40; CHECK:       bb3:
41; CHECK-NEXT:    ret void
42;
43
44bb1:
45  br label %bb2
46
47bb2:
48  %c.1.0 = phi i16 [ 0, %bb1 ], [ %_tmp9, %bb2 ]
49  %_tmp1 = zext i16 0 to i64
50  %_tmp2 = getelementptr [1 x %rec8], ptr @a, i16 0, i64 %_tmp1
51  %_tmp6 = sext i16 %c.1.0 to i64
52  %_tmp7 = getelementptr [2 x ptr], ptr @b, i16 0, i64 %_tmp6
53  store ptr %_tmp2, ptr %_tmp7
54  %_tmp9 = add nsw i16 %c.1.0, 1
55  %_tmp11 = icmp slt i16 %_tmp9, 2
56  br i1 %_tmp11, label %bb2, label %bb3
57
58bb3:
59  ret void
60}
61