1 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,-slow-unaligned-mem-32 | FileCheck %s --check-prefix=ALL --check-prefix=FAST32
2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,+slow-unaligned-mem-32 | FileCheck %s --check-prefix=ALL --check-prefix=SLOW32
4 define <4 x float> @merge_2_floats(float* nocapture %p) nounwind readonly {
6 %vecins = insertelement <4 x float> undef, float %tmp1, i32 0
7 %add.ptr = getelementptr float* %p, i32 1
8 %tmp5 = load float* %add.ptr
9 %vecins7 = insertelement <4 x float> %vecins, float %tmp5, i32 1
10 ret <4 x float> %vecins7
12 ; ALL-LABEL: merge_2_floats
17 ; Test-case generated due to a crash when trying to treat loading the first
18 ; two i64s of a <4 x i64> as a load of two i32s.
19 define <4 x i64> @merge_2_floats_into_4() {
20 %1 = load i64** undef, align 8
21 %2 = getelementptr inbounds i64* %1, i64 0
23 %4 = insertelement <4 x i64> undef, i64 %3, i32 0
24 %5 = load i64** undef, align 8
25 %6 = getelementptr inbounds i64* %5, i64 1
27 %8 = insertelement <4 x i64> %4, i64 %7, i32 1
28 %9 = shufflevector <4 x i64> %8, <4 x i64> undef, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
31 ; ALL-LABEL: merge_2_floats_into_4
36 define <4 x float> @merge_4_floats(float* %ptr) {
37 %a = load float* %ptr, align 8
38 %vec = insertelement <4 x float> undef, float %a, i32 0
39 %idx1 = getelementptr inbounds float* %ptr, i64 1
40 %b = load float* %idx1, align 8
41 %vec2 = insertelement <4 x float> %vec, float %b, i32 1
42 %idx3 = getelementptr inbounds float* %ptr, i64 2
43 %c = load float* %idx3, align 8
44 %vec4 = insertelement <4 x float> %vec2, float %c, i32 2
45 %idx5 = getelementptr inbounds float* %ptr, i64 3
46 %d = load float* %idx5, align 8
47 %vec6 = insertelement <4 x float> %vec4, float %d, i32 3
50 ; ALL-LABEL: merge_4_floats
55 ; PR21710 ( http://llvm.org/bugs/show_bug.cgi?id=21710 )
56 ; Make sure that 32-byte vectors are handled efficiently.
57 ; If the target has slow 32-byte accesses, we should still generate
60 define <8 x float> @merge_8_floats(float* %ptr) {
61 %a = load float* %ptr, align 4
62 %vec = insertelement <8 x float> undef, float %a, i32 0
63 %idx1 = getelementptr inbounds float* %ptr, i64 1
64 %b = load float* %idx1, align 4
65 %vec2 = insertelement <8 x float> %vec, float %b, i32 1
66 %idx3 = getelementptr inbounds float* %ptr, i64 2
67 %c = load float* %idx3, align 4
68 %vec4 = insertelement <8 x float> %vec2, float %c, i32 2
69 %idx5 = getelementptr inbounds float* %ptr, i64 3
70 %d = load float* %idx5, align 4
71 %vec6 = insertelement <8 x float> %vec4, float %d, i32 3
72 %idx7 = getelementptr inbounds float* %ptr, i64 4
73 %e = load float* %idx7, align 4
74 %vec8 = insertelement <8 x float> %vec6, float %e, i32 4
75 %idx9 = getelementptr inbounds float* %ptr, i64 5
76 %f = load float* %idx9, align 4
77 %vec10 = insertelement <8 x float> %vec8, float %f, i32 5
78 %idx11 = getelementptr inbounds float* %ptr, i64 6
79 %g = load float* %idx11, align 4
80 %vec12 = insertelement <8 x float> %vec10, float %g, i32 6
81 %idx13 = getelementptr inbounds float* %ptr, i64 7
82 %h = load float* %idx13, align 4
83 %vec14 = insertelement <8 x float> %vec12, float %h, i32 7
84 ret <8 x float> %vec14
86 ; ALL-LABEL: merge_8_floats
92 ; SLOW32-NEXT: vinsertf128
96 define <4 x double> @merge_4_doubles(double* %ptr) {
97 %a = load double* %ptr, align 8
98 %vec = insertelement <4 x double> undef, double %a, i32 0
99 %idx1 = getelementptr inbounds double* %ptr, i64 1
100 %b = load double* %idx1, align 8
101 %vec2 = insertelement <4 x double> %vec, double %b, i32 1
102 %idx3 = getelementptr inbounds double* %ptr, i64 2
103 %c = load double* %idx3, align 8
104 %vec4 = insertelement <4 x double> %vec2, double %c, i32 2
105 %idx5 = getelementptr inbounds double* %ptr, i64 3
106 %d = load double* %idx5, align 8
107 %vec6 = insertelement <4 x double> %vec4, double %d, i32 3
108 ret <4 x double> %vec6
110 ; ALL-LABEL: merge_4_doubles
115 ; SLOW32-NEXT: vinsertf128
119 ; PR21771 ( http://llvm.org/bugs/show_bug.cgi?id=21771 )
120 ; Recognize and combine consecutive loads even when the
121 ; first of the combined loads is offset from the base address.
122 define <4 x double> @merge_4_doubles_offset(double* %ptr) {
123 %arrayidx4 = getelementptr inbounds double* %ptr, i64 4
124 %arrayidx5 = getelementptr inbounds double* %ptr, i64 5
125 %arrayidx6 = getelementptr inbounds double* %ptr, i64 6
126 %arrayidx7 = getelementptr inbounds double* %ptr, i64 7
127 %e = load double* %arrayidx4, align 8
128 %f = load double* %arrayidx5, align 8
129 %g = load double* %arrayidx6, align 8
130 %h = load double* %arrayidx7, align 8
131 %vecinit4 = insertelement <4 x double> undef, double %e, i32 0
132 %vecinit5 = insertelement <4 x double> %vecinit4, double %f, i32 1
133 %vecinit6 = insertelement <4 x double> %vecinit5, double %g, i32 2
134 %vecinit7 = insertelement <4 x double> %vecinit6, double %h, i32 3
135 ret <4 x double> %vecinit7
137 ; ALL-LABEL: merge_4_doubles_offset
142 ; SLOW32-NEXT: vinsertf128