xref: /llvm-project/llvm/test/Transforms/SLPVectorizer/X86/simplebb.ll (revision 580210a0c938531ef9fd79f9ffedb93eeb2e66c2) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=slp-vectorizer,dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
3
4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
5target triple = "x86_64-apple-macosx10.8.0"
6
7; Simple 3-pair chain with loads and stores
8define void @test1(ptr %a, ptr %b, ptr %c) {
9; CHECK-LABEL: @test1(
10; CHECK-NEXT:    [[TMP2:%.*]] = load <2 x double>, ptr [[A:%.*]], align 8
11; CHECK-NEXT:    [[TMP4:%.*]] = load <2 x double>, ptr [[B:%.*]], align 8
12; CHECK-NEXT:    [[TMP5:%.*]] = fmul <2 x double> [[TMP2]], [[TMP4]]
13; CHECK-NEXT:    store <2 x double> [[TMP5]], ptr [[C:%.*]], align 8
14; CHECK-NEXT:    ret void
15;
16  %i0 = load double, ptr %a, align 8
17  %i1 = load double, ptr %b, align 8
18  %mul = fmul double %i0, %i1
19  %arrayidx3 = getelementptr inbounds double, ptr %a, i64 1
20  %i3 = load double, ptr %arrayidx3, align 8
21  %arrayidx4 = getelementptr inbounds double, ptr %b, i64 1
22  %i4 = load double, ptr %arrayidx4, align 8
23  %mul5 = fmul double %i3, %i4
24  store double %mul, ptr %c, align 8
25  %arrayidx5 = getelementptr inbounds double, ptr %c, i64 1
26  store double %mul5, ptr %arrayidx5, align 8
27  ret void
28}
29
30; Simple 3-pair chain with loads and stores, obfuscated with bitcasts
31define void @test2(ptr %a, ptr %b, ptr %e) {
32; CHECK-LABEL: @test2(
33; CHECK-NEXT:    [[TMP2:%.*]] = load <2 x double>, ptr [[A:%.*]], align 8
34; CHECK-NEXT:    [[TMP4:%.*]] = load <2 x double>, ptr [[B:%.*]], align 8
35; CHECK-NEXT:    [[TMP5:%.*]] = fmul <2 x double> [[TMP2]], [[TMP4]]
36; CHECK-NEXT:    store <2 x double> [[TMP5]], ptr [[E:%.*]], align 8
37; CHECK-NEXT:    ret void
38;
39  %i0 = load double, ptr %a, align 8
40  %i1 = load double, ptr %b, align 8
41  %mul = fmul double %i0, %i1
42  %arrayidx3 = getelementptr inbounds double, ptr %a, i64 1
43  %i3 = load double, ptr %arrayidx3, align 8
44  %arrayidx4 = getelementptr inbounds double, ptr %b, i64 1
45  %i4 = load double, ptr %arrayidx4, align 8
46  %mul5 = fmul double %i3, %i4
47  store double %mul, ptr %e, align 8
48  %carrayidx5 = getelementptr inbounds i8, ptr %e, i64 8
49  store double %mul5, ptr %carrayidx5, align 8
50  ret void
51}
52
53; Don't vectorize volatile loads.
54define void @test_volatile_load(ptr %a, ptr %b, ptr %c) {
55; CHECK-LABEL: @test_volatile_load(
56; CHECK-NEXT:    [[I0:%.*]] = load volatile double, ptr [[A:%.*]], align 8
57; CHECK-NEXT:    [[I1:%.*]] = load volatile double, ptr [[B:%.*]], align 8
58; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds double, ptr [[A]], i64 1
59; CHECK-NEXT:    [[I3:%.*]] = load double, ptr [[ARRAYIDX3]], align 8
60; CHECK-NEXT:    [[ARRAYIDX4:%.*]] = getelementptr inbounds double, ptr [[B]], i64 1
61; CHECK-NEXT:    [[I4:%.*]] = load double, ptr [[ARRAYIDX4]], align 8
62; CHECK-NEXT:    [[TMP1:%.*]] = insertelement <2 x double> poison, double [[I0]], i32 0
63; CHECK-NEXT:    [[TMP2:%.*]] = insertelement <2 x double> [[TMP1]], double [[I3]], i32 1
64; CHECK-NEXT:    [[TMP3:%.*]] = insertelement <2 x double> poison, double [[I1]], i32 0
65; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <2 x double> [[TMP3]], double [[I4]], i32 1
66; CHECK-NEXT:    [[TMP5:%.*]] = fmul <2 x double> [[TMP2]], [[TMP4]]
67; CHECK-NEXT:    store <2 x double> [[TMP5]], ptr [[C:%.*]], align 8
68; CHECK-NEXT:    ret void
69;
70  %i0 = load volatile double, ptr %a, align 8
71  %i1 = load volatile double, ptr %b, align 8
72  %mul = fmul double %i0, %i1
73  %arrayidx3 = getelementptr inbounds double, ptr %a, i64 1
74  %i3 = load double, ptr %arrayidx3, align 8
75  %arrayidx4 = getelementptr inbounds double, ptr %b, i64 1
76  %i4 = load double, ptr %arrayidx4, align 8
77  %mul5 = fmul double %i3, %i4
78  store double %mul, ptr %c, align 8
79  %arrayidx5 = getelementptr inbounds double, ptr %c, i64 1
80  store double %mul5, ptr %arrayidx5, align 8
81  ret void
82}
83
84; Don't vectorize volatile stores.
85define void @test_volatile_store(ptr %a, ptr %b, ptr %c) {
86; CHECK-LABEL: @test_volatile_store(
87; CHECK-NEXT:    [[I0:%.*]] = load double, ptr [[A:%.*]], align 8
88; CHECK-NEXT:    [[I1:%.*]] = load double, ptr [[B:%.*]], align 8
89; CHECK-NEXT:    [[MUL:%.*]] = fmul double [[I0]], [[I1]]
90; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds double, ptr [[A]], i64 1
91; CHECK-NEXT:    [[I3:%.*]] = load double, ptr [[ARRAYIDX3]], align 8
92; CHECK-NEXT:    [[ARRAYIDX4:%.*]] = getelementptr inbounds double, ptr [[B]], i64 1
93; CHECK-NEXT:    [[I4:%.*]] = load double, ptr [[ARRAYIDX4]], align 8
94; CHECK-NEXT:    [[MUL5:%.*]] = fmul double [[I3]], [[I4]]
95; CHECK-NEXT:    store volatile double [[MUL]], ptr [[C:%.*]], align 8
96; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds double, ptr [[C]], i64 1
97; CHECK-NEXT:    store volatile double [[MUL5]], ptr [[ARRAYIDX5]], align 8
98; CHECK-NEXT:    ret void
99;
100  %i0 = load double, ptr %a, align 8
101  %i1 = load double, ptr %b, align 8
102  %mul = fmul double %i0, %i1
103  %arrayidx3 = getelementptr inbounds double, ptr %a, i64 1
104  %i3 = load double, ptr %arrayidx3, align 8
105  %arrayidx4 = getelementptr inbounds double, ptr %b, i64 1
106  %i4 = load double, ptr %arrayidx4, align 8
107  %mul5 = fmul double %i3, %i4
108  store volatile double %mul, ptr %c, align 8
109  %arrayidx5 = getelementptr inbounds double, ptr %c, i64 1
110  store volatile double %mul5, ptr %arrayidx5, align 8
111  ret void
112}
113
114