1 ; RUN: llc < %s -mtriple=aarch64-unknown-unknown -mcpu=cyclone -mattr=+slow-misaligned-128store | FileCheck %s --check-prefix=SPLITTING --check-prefix=CHECK
2 ; RUN: llc < %s -mtriple=aarch64-eabi -mattr=-slow-misaligned-128store | FileCheck %s --check-prefix=MISALIGNED --check-prefix=CHECK
4 @g0 = external global <3 x float>, align 16
5 @g1 = external global <3 x float>, align 4
7 ; CHECK: ldr q[[R0:[0-9]+]], {{\[}}[[R1:x[0-9]+]], :lo12:g0
11 %tmp4 = getelementptr inbounds <3 x float>, <3 x float>* @g1, i64 0, i64 0
12 %tmp5 = load <3 x float>, <3 x float>* @g0, align 16
13 %tmp6 = extractelement <3 x float> %tmp5, i64 0
14 store float %tmp6, float* %tmp4
15 %tmp7 = getelementptr inbounds float, float* %tmp4, i64 1
16 %tmp8 = load <3 x float>, <3 x float>* @g0, align 16
17 %tmp9 = extractelement <3 x float> %tmp8, i64 1
18 store float %tmp9, float* %tmp7
23 ; PR21711 - Merge vector stores into wider vector stores.
25 ; On Cyclone, the stores should not get merged into a 16-byte store because
26 ; unaligned 16-byte stores are slow. This test would infinite loop when
27 ; the fastness of unaligned accesses was not specified correctly.
29 define void @merge_vec_extract_stores(<4 x float> %v1, <2 x float>* %ptr) {
30 %idx0 = getelementptr inbounds <2 x float>, <2 x float>* %ptr, i64 3
31 %idx1 = getelementptr inbounds <2 x float>, <2 x float>* %ptr, i64 4
33 %shuffle0 = shufflevector <4 x float> %v1, <4 x float> undef, <2 x i32> <i32 0, i32 1>
34 %shuffle1 = shufflevector <4 x float> %v1, <4 x float> undef, <2 x i32> <i32 2, i32 3>
36 store <2 x float> %shuffle0, <2 x float>* %idx0, align 8
37 store <2 x float> %shuffle1, <2 x float>* %idx1, align 8
40 ; MISALIGNED-LABEL: merge_vec_extract_stores
41 ; MISALIGNED: stur q0, [x0, #24]
42 ; MISALIGNED-NEXT: ret
44 ; FIXME: Ideally we would like to use a generic target for this test, but this relies
45 ; on suppressing store pairs.
47 ; SPLITTING-LABEL: merge_vec_extract_stores
48 ; SPLITTING: ext v1.16b, v0.16b, v0.16b, #8
49 ; SPLITTING-NEXT: str d0, [x0, #24]
50 ; SPLITTING-NEXT: str d1, [x0, #32]