1; Intel chips with slow unaligned memory accesses
2
3; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium3      2>&1 | FileCheck %s --check-prefix=SLOW
4; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium3m     2>&1 | FileCheck %s --check-prefix=SLOW
5; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium-m     2>&1 | FileCheck %s --check-prefix=SLOW
6; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium4      2>&1 | FileCheck %s --check-prefix=SLOW
7; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium4m     2>&1 | FileCheck %s --check-prefix=SLOW
8; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=yonah         2>&1 | FileCheck %s --check-prefix=SLOW
9; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=prescott      2>&1 | FileCheck %s --check-prefix=SLOW
10; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=nocona        2>&1 | FileCheck %s --check-prefix=SLOW
11; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=core2         2>&1 | FileCheck %s --check-prefix=SLOW
12; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=penryn        2>&1 | FileCheck %s --check-prefix=SLOW
13; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bonnell       2>&1 | FileCheck %s --check-prefix=SLOW
14
15; Intel chips with fast unaligned memory accesses
16
17; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=silvermont    2>&1 | FileCheck %s --check-prefix=FAST
18; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=nehalem       2>&1 | FileCheck %s --check-prefix=FAST
19; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=westmere      2>&1 | FileCheck %s --check-prefix=FAST
20; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=sandybridge   2>&1 | FileCheck %s --check-prefix=FAST
21; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=ivybridge     2>&1 | FileCheck %s --check-prefix=FAST
22; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=haswell       2>&1 | FileCheck %s --check-prefix=FAST
23; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=broadwell     2>&1 | FileCheck %s --check-prefix=FAST
24; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=knl           2>&1 | FileCheck %s --check-prefix=FAST
25; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=skylake       2>&1 | FileCheck %s --check-prefix=FAST
26
27; AMD chips with slow unaligned memory accesses
28
29; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon-4      2>&1 | FileCheck %s --check-prefix=SLOW
30; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon-xp     2>&1 | FileCheck %s --check-prefix=SLOW
31; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=k8            2>&1 | FileCheck %s --check-prefix=SLOW
32; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=opteron       2>&1 | FileCheck %s --check-prefix=SLOW
33; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon64      2>&1 | FileCheck %s --check-prefix=SLOW
34; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon-fx     2>&1 | FileCheck %s --check-prefix=SLOW
35; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=k8-sse3       2>&1 | FileCheck %s --check-prefix=SLOW
36; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=opteron-sse3  2>&1 | FileCheck %s --check-prefix=SLOW
37; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon64-sse3 2>&1 | FileCheck %s --check-prefix=SLOW
38
39; AMD chips with fast unaligned memory accesses
40
41; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=amdfam10      2>&1 | FileCheck %s --check-prefix=FAST
42; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=barcelona     2>&1 | FileCheck %s --check-prefix=FAST
43; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=btver1        2>&1 | FileCheck %s --check-prefix=FAST
44; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=btver2        2>&1 | FileCheck %s --check-prefix=FAST
45; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver1        2>&1 | FileCheck %s --check-prefix=FAST
46; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver2        2>&1 | FileCheck %s --check-prefix=FAST
47; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver3        2>&1 | FileCheck %s --check-prefix=FAST
48; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver4        2>&1 | FileCheck %s --check-prefix=FAST
49
50; Other chips with slow unaligned memory accesses
51
52; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=c3-2          2>&1 | FileCheck %s --check-prefix=SLOW
53
54; Verify that the slow/fast unaligned memory attribute is set correctly for each CPU model.
55; Slow chips use 4-byte stores. Fast chips with SSE or later use something other than 4-byte stores.
56; Chips that don't have SSE use 4-byte stores either way, so they're not tested.
57
58; Also verify that SSE4.2 or SSE4a imply fast unaligned accesses.
59
60; RUN: llc < %s -mtriple=i386-unknown-unknown -mattr=sse4.2       2>&1 | FileCheck %s --check-prefix=FAST
61; RUN: llc < %s -mtriple=i386-unknown-unknown -mattr=sse4a        2>&1 | FileCheck %s --check-prefix=FAST
62
63define void @store_zeros(i8* %a) {
64; SLOW-NOT: not a recognized processor
65; SLOW-LABEL: store_zeros:
66; SLOW:       # BB#0:
67; SLOW-NEXT:    movl
68; SLOW-NEXT:    movl
69; SLOW-NEXT:    movl
70; SLOW-NEXT:    movl
71; SLOW-NEXT:    movl
72; SLOW-NEXT:    movl
73; SLOW-NEXT:    movl
74; SLOW-NEXT:    movl
75; SLOW-NEXT:    movl
76; SLOW-NEXT:    movl
77; SLOW-NEXT:    movl
78; SLOW-NEXT:    movl
79; SLOW-NEXT:    movl
80; SLOW-NEXT:    movl
81; SLOW-NEXT:    movl
82; SLOW-NEXT:    movl
83; SLOW-NEXT:    movl
84;
85; FAST-NOT: not a recognized processor
86; FAST-LABEL: store_zeros:
87; FAST:       # BB#0:
88; FAST-NEXT:    movl {{[0-9]+}}(%esp), %eax
89; FAST-NOT:     movl
90  call void @llvm.memset.p0i8.i64(i8* %a, i8 0, i64 64, i32 1, i1 false)
91  ret void
92}
93
94declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1)
95
96