blob: 27cbef681b7e5071d413cb349aaf9175c010bd60 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
; Intel chips with slow unaligned memory accesses
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium3 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium3m 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium-m 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium4 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=pentium4m 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=yonah 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=prescott 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=nocona 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=core2 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=penryn 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bonnell 2>&1 | FileCheck %s --check-prefix=SLOW
; Intel chips with fast unaligned memory accesses
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=silvermont 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=nehalem 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=westmere 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=sandybridge 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=ivybridge 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=haswell 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=broadwell 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=knl 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=skylake 2>&1 | FileCheck %s --check-prefix=FAST
; AMD chips with slow unaligned memory accesses
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon-4 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon-xp 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=k8 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=opteron 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon64 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon-fx 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=k8-sse3 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=opteron-sse3 2>&1 | FileCheck %s --check-prefix=SLOW
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=athlon64-sse3 2>&1 | FileCheck %s --check-prefix=SLOW
; AMD chips with fast unaligned memory accesses
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=amdfam10 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=barcelona 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=btver1 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=btver2 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver1 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver2 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver3 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=bdver4 2>&1 | FileCheck %s --check-prefix=FAST
; Other chips with slow unaligned memory accesses
; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=c3-2 2>&1 | FileCheck %s --check-prefix=SLOW
; Verify that the slow/fast unaligned memory attribute is set correctly for each CPU model.
; Slow chips use 4-byte stores. Fast chips with SSE or later use something other than 4-byte stores.
; Chips that don't have SSE use 4-byte stores either way, so they're not tested.
; Also verify that SSE4.2 or SSE4a imply fast unaligned accesses.
; RUN: llc < %s -mtriple=i386-unknown-unknown -mattr=sse4.2 2>&1 | FileCheck %s --check-prefix=FAST
; RUN: llc < %s -mtriple=i386-unknown-unknown -mattr=sse4a 2>&1 | FileCheck %s --check-prefix=FAST
define void @store_zeros(i8* %a) {
; SLOW-NOT: not a recognized processor
; SLOW-LABEL: store_zeros:
; SLOW: # BB#0:
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
; SLOW-NEXT: movl
;
; FAST-NOT: not a recognized processor
; FAST-LABEL: store_zeros:
; FAST: # BB#0:
; FAST-NEXT: movl {{[0-9]+}}(%esp), %eax
; FAST-NOT: movl
call void @llvm.memset.p0i8.i64(i8* %a, i8 0, i64 64, i32 1, i1 false)
ret void
}
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1)
|