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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -o - | FileCheck %s
3
4
5target triple = "x86_64-unknown-linux-gnu"
6
7define void @merge_double(double* noalias nocapture %st, double* noalias nocapture readonly %ld) #0 {
8; CHECK-LABEL: merge_double:
9; CHECK:       # %bb.0:
10; CHECK-NEXT:    movsd {{.*#+}} xmm0 = mem[0],zero
11; CHECK-NEXT:    movsd {{.*#+}} xmm1 = mem[0],zero
12; CHECK-NEXT:    movsd %xmm0, (%rdi)
13; CHECK-NEXT:    movsd %xmm1, 8(%rdi)
14; CHECK-NEXT:    movsd %xmm0, 16(%rdi)
15; CHECK-NEXT:    movsd %xmm1, 24(%rdi)
16; CHECK-NEXT:    retq
17  %ld_idx1 = getelementptr inbounds double, double* %ld, i64 1
18  %ld0 = load double, double* %ld, align 8, !tbaa !2
19  %ld1 = load double, double* %ld_idx1, align 8, !tbaa !2
20
21  %st_idx1 = getelementptr inbounds double, double* %st, i64 1
22  %st_idx2 = getelementptr inbounds double, double* %st, i64 2
23  %st_idx3 = getelementptr inbounds double, double* %st, i64 3
24
25  store double %ld0, double* %st, align 8, !tbaa !2
26  store double %ld1, double* %st_idx1, align 8, !tbaa !2
27  store double %ld0, double* %st_idx2, align 8, !tbaa !2
28  store double %ld1, double* %st_idx3, align 8, !tbaa !2
29  ret void
30}
31
32define void @merge_loadstore_int(i64* noalias nocapture readonly %p, i64* noalias nocapture %q) local_unnamed_addr #0 {
33; CHECK-LABEL: merge_loadstore_int:
34; CHECK:       # %bb.0: # %entry
35; CHECK-NEXT:    movq (%rdi), %rax
36; CHECK-NEXT:    movq 8(%rdi), %rcx
37; CHECK-NEXT:    movq %rax, (%rsi)
38; CHECK-NEXT:    movq %rcx, 8(%rsi)
39; CHECK-NEXT:    movq %rax, 16(%rsi)
40; CHECK-NEXT:    movq %rcx, 24(%rsi)
41; CHECK-NEXT:    retq
42entry:
43  %0 = load i64, i64* %p, align 8, !tbaa !1
44  %arrayidx1 = getelementptr inbounds i64, i64* %p, i64 1
45  %1 = load i64, i64* %arrayidx1, align 8, !tbaa !1
46  store i64 %0, i64* %q, align 8, !tbaa !1
47  %arrayidx3 = getelementptr inbounds i64, i64* %q, i64 1
48  store i64 %1, i64* %arrayidx3, align 8, !tbaa !1
49  %arrayidx4 = getelementptr inbounds i64, i64* %q, i64 2
50  store i64 %0, i64* %arrayidx4, align 8, !tbaa !1
51  %arrayidx5 = getelementptr inbounds i64, i64* %q, i64 3
52  store i64 %1, i64* %arrayidx5, align 8, !tbaa !1
53  ret void
54}
55
56define i64 @merge_loadstore_int_with_extra_use(i64* noalias nocapture readonly %p, i64* noalias nocapture %q) local_unnamed_addr #0 {
57; CHECK-LABEL: merge_loadstore_int_with_extra_use:
58; CHECK:       # %bb.0: # %entry
59; CHECK-NEXT:    movq (%rdi), %rax
60; CHECK-NEXT:    movq 8(%rdi), %rcx
61; CHECK-NEXT:    movq %rax, (%rsi)
62; CHECK-NEXT:    movq %rcx, 8(%rsi)
63; CHECK-NEXT:    movq %rax, 16(%rsi)
64; CHECK-NEXT:    movq %rcx, 24(%rsi)
65; CHECK-NEXT:    retq
66entry:
67  %0 = load i64, i64* %p, align 8, !tbaa !1
68  %arrayidx1 = getelementptr inbounds i64, i64* %p, i64 1
69  %1 = load i64, i64* %arrayidx1, align 8, !tbaa !1
70  store i64 %0, i64* %q, align 8, !tbaa !1
71  %arrayidx3 = getelementptr inbounds i64, i64* %q, i64 1
72  store i64 %1, i64* %arrayidx3, align 8, !tbaa !1
73  %arrayidx4 = getelementptr inbounds i64, i64* %q, i64 2
74  store i64 %0, i64* %arrayidx4, align 8, !tbaa !1
75  %arrayidx5 = getelementptr inbounds i64, i64* %q, i64 3
76  store i64 %1, i64* %arrayidx5, align 8, !tbaa !1
77  ret i64 %0
78
79}
80
81attributes #0 = { "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" }
82
83
84!0 = !{!"clang version 5.0.0 (trunk 296467) (llvm/trunk 296476)"}
85!1 = !{!2, !2, i64 0}
86!2 = !{!"double", !3, i64 0}
87!3 = !{!"omnipotent char", !4, i64 0}
88!4 = !{!"Simple C/C++ TBAA"}
89