xref: /llvm-project/llvm/test/Transforms/SLPVectorizer/RISCV/phi-const.ll (revision 38fffa630ee80163dc65e759392ad29798905679)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
2; RUN: opt -passes=slp-vectorizer -S < %s -mtriple=riscv32 -mattr=+v \
3; RUN:     -riscv-v-slp-max-vf=0 | FileCheck %s
4; RUN: opt -passes=slp-vectorizer -S < %s -mtriple=riscv64 -mattr=+v \
5; RUN:     -riscv-v-slp-max-vf=0 | FileCheck %s
6
7; These shouldn't be vectorized as the cost of materializing the constants as
8; vectors should outweigh the scalar cost
9
10define void @f(ptr %p, i1 %c) {
11; CHECK-LABEL: define void @f
12; CHECK-SAME: (ptr [[P:%.*]], i1 [[C:%.*]]) #[[ATTR0:[0-9]+]] {
13; CHECK-NEXT:    [[P_0:%.*]] = getelementptr i8, ptr [[P]]
14; CHECK-NEXT:    br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
15; CHECK:       a:
16; CHECK-NEXT:    br label [[D:%.*]]
17; CHECK:       b:
18; CHECK-NEXT:    br label [[D]]
19; CHECK:       d:
20; CHECK-NEXT:    [[TMP1:%.*]] = phi <2 x i8> [ <i8 1, i8 -1>, [[A]] ], [ <i8 -1, i8 1>, [[B]] ]
21; CHECK-NEXT:    store <2 x i8> [[TMP1]], ptr [[P_0]], align 1
22; CHECK-NEXT:    ret void
23;
24  %p.0 = getelementptr i8, ptr %p
25  %p.1 = getelementptr i8, ptr %p, i32 1
26  br i1 %c, label %a, label %b
27a:
28  br label %d
29b:
30  br label %d
31d:
32  %x = phi i8 [1, %a], [-1, %b]
33  %y = phi i8 [-1, %a], [1, %b]
34  store i8 %x, ptr %p.0
35  store i8 %y, ptr %p.1
36  ret void
37}
38
39define void @g(ptr %p, i1 %c) {
40; CHECK-LABEL: define void @g
41; CHECK-SAME: (ptr [[P:%.*]], i1 [[C:%.*]]) #[[ATTR0]] {
42; CHECK-NEXT:    [[P_0:%.*]] = getelementptr i8, ptr [[P]]
43; CHECK-NEXT:    br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
44; CHECK:       a:
45; CHECK-NEXT:    br label [[D:%.*]]
46; CHECK:       b:
47; CHECK-NEXT:    br label [[D]]
48; CHECK:       d:
49; CHECK-NEXT:    [[TMP1:%.*]] = phi <2 x i8> [ <i8 1, i8 -1>, [[A]] ], [ <i8 -1, i8 1>, [[B]] ]
50; CHECK-NEXT:    [[TMP2:%.*]] = add <2 x i8> [[TMP1]], splat (i8 1)
51; CHECK-NEXT:    store <2 x i8> [[TMP2]], ptr [[P_0]], align 1
52; CHECK-NEXT:    ret void
53;
54  %p.0 = getelementptr i8, ptr %p
55  %p.1 = getelementptr i8, ptr %p, i32 1
56  br i1 %c, label %a, label %b
57a:
58  br label %d
59b:
60  br label %d
61d:
62  %x = phi i8 [1, %a], [-1, %b]
63  %y = phi i8 [-1, %a], [1, %b]
64  %x.add = add i8 %x, 1
65  %y.add = add i8 %y, 1
66  store i8 %x.add, ptr %p.0
67  store i8 %y.add, ptr %p.1
68  ret void
69}
70