source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AArch64/arm64-stp-aa.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

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1; RUN: llc < %s -march=arm64 -enable-misched=false -aarch64-stp-suppress=false -verify-machineinstrs | FileCheck %s
2
3; The next set of tests makes sure we can combine the second instruction into
4; the first.
5
6; CHECK-LABEL: stp_int_aa
7; CHECK: stp w0, w1, [x2]
8; CHECK: ldr w0, [x2, #8]
9; CHECK: ret
10define i32 @stp_int_aa(i32 %a, i32 %b, i32* nocapture %p) nounwind {
11  store i32 %a, i32* %p, align 4
12  %ld.ptr = getelementptr inbounds i32, i32* %p, i64 2
13  %tmp = load i32, i32* %ld.ptr, align 4
14  %add.ptr = getelementptr inbounds i32, i32* %p, i64 1
15  store i32 %b, i32* %add.ptr, align 4
16  ret i32 %tmp
17}
18
19; CHECK-LABEL: stp_long_aa
20; CHECK: stp x0, x1, [x2]
21; CHECK: ldr x0, [x2, #16]
22; CHECK: ret
23define i64 @stp_long_aa(i64 %a, i64 %b, i64* nocapture %p) nounwind {
24  store i64 %a, i64* %p, align 8
25  %ld.ptr = getelementptr inbounds i64, i64* %p, i64 2
26  %tmp = load i64, i64* %ld.ptr, align 4
27  %add.ptr = getelementptr inbounds i64, i64* %p, i64 1
28  store i64 %b, i64* %add.ptr, align 8
29  ret i64 %tmp
30}
31
32; CHECK-LABEL: stp_float_aa
33; CHECK: stp s0, s1, [x0]
34; CHECK: ldr s0, [x0, #8]
35; CHECK: ret
36define float @stp_float_aa(float %a, float %b, float* nocapture %p) nounwind {
37  store float %a, float* %p, align 4
38  %ld.ptr = getelementptr inbounds float, float* %p, i64 2
39  %tmp = load float, float* %ld.ptr, align 4
40  %add.ptr = getelementptr inbounds float, float* %p, i64 1
41  store float %b, float* %add.ptr, align 4
42  ret float %tmp
43}
44
45; CHECK-LABEL: stp_double_aa
46; CHECK: stp d0, d1, [x0]
47; CHECK: ldr d0, [x0, #16]
48; CHECK: ret
49define double @stp_double_aa(double %a, double %b, double* nocapture %p) nounwind {
50  store double %a, double* %p, align 8
51  %ld.ptr = getelementptr inbounds double, double* %p, i64 2
52  %tmp = load double, double* %ld.ptr, align 4
53  %add.ptr = getelementptr inbounds double, double* %p, i64 1
54  store double %b, double* %add.ptr, align 8
55  ret double %tmp
56}
57
58; The next set of tests makes sure we can combine the first instruction into
59; the second.
60
61; CHECK-LABEL: stp_int_aa_after
62; CHECK: ldr w0, [x3, #4]
63; CHECK: stp w1, w2, [x3]
64; CHECK: ret
65define i32 @stp_int_aa_after(i32 %w0, i32 %a, i32 %b, i32* nocapture %p) nounwind {
66  store i32 %a, i32* %p, align 4
67  %ld.ptr = getelementptr inbounds i32, i32* %p, i64 1
68  %tmp = load i32, i32* %ld.ptr, align 4
69  %add.ptr = getelementptr inbounds i32, i32* %p, i64 1
70  store i32 %b, i32* %add.ptr, align 4
71  ret i32 %tmp
72}
73
74; CHECK-LABEL: stp_long_aa_after
75; CHECK: ldr x0, [x3, #8]
76; CHECK: stp x1, x2, [x3]
77; CHECK: ret
78define i64 @stp_long_aa_after(i64 %x0, i64 %a, i64 %b, i64* nocapture %p) nounwind {
79  store i64 %a, i64* %p, align 8
80  %ld.ptr = getelementptr inbounds i64, i64* %p, i64 1
81  %tmp = load i64, i64* %ld.ptr, align 4
82  %add.ptr = getelementptr inbounds i64, i64* %p, i64 1
83  store i64 %b, i64* %add.ptr, align 8
84  ret i64 %tmp
85}
86
87; CHECK-LABEL: stp_float_aa_after
88; CHECK: ldr s0, [x0, #4]
89; CHECK: stp s1, s2, [x0]
90; CHECK: ret
91define float @stp_float_aa_after(float %s0, float %a, float %b, float* nocapture %p) nounwind {
92  store float %a, float* %p, align 4
93  %ld.ptr = getelementptr inbounds float, float* %p, i64 1
94  %tmp = load float, float* %ld.ptr, align 4
95  %add.ptr = getelementptr inbounds float, float* %p, i64 1
96  store float %b, float* %add.ptr, align 4
97  ret float %tmp
98}
99
100; CHECK-LABEL: stp_double_aa_after
101; CHECK: ldr d0, [x0, #8]
102; CHECK: stp d1, d2, [x0]
103; CHECK: ret
104define double @stp_double_aa_after(double %d0, double %a, double %b, double* nocapture %p) nounwind {
105  store double %a, double* %p, align 8
106  %ld.ptr = getelementptr inbounds double, double* %p, i64 1
107  %tmp = load double, double* %ld.ptr, align 4
108  %add.ptr = getelementptr inbounds double, double* %p, i64 1
109  store double %b, double* %add.ptr, align 8
110  ret double %tmp
111}
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