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gerrit-public.fairphone.software / toolchain / llvm-project / 13f89cd19b5425e2671390ef971f00b51f6bb113 / . / llvm / test / CodeGen / ARM / fast-isel-align.ll
blob: 4e28a10cd152a19c07105409654ae96a055c1bf7 [file] [log] [blame]
JF Bastien97b08c402013-05-17 23:49:01 +0000[diff] [blame]1; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
2; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
3; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
4; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
5
6; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
7; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-linux-gnueabi | FileCheck %s --check-prefix=THUMB
8; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
9; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-linux-gnueabi | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
10
11; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-nacl | FileCheck %s --check-prefix=ARM
12; RUN: llc < %s -O0 -arm-strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-nacl | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
13
14; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
15; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
16; RUN: llc < %s -O0 -arm-no-strict-align -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown | FileCheck %s --check-prefix=ARM
17; RUN: llc < %s -O0 -arm-no-strict-align -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown | FileCheck %s --check-prefix=THUMB
18; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
19; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
20
21; Check unaligned stores
22%struct.anon = type <{ float }>
23
24@a = common global %struct.anon* null, align 4
25
26define void @unaligned_store(float %x, float %y) nounwind {
27entry:
28; ARM: @unaligned_store
29; ARM: vmov r1, s0
30; ARM: str r1, [r0]
31
32; THUMB: @unaligned_store
33; THUMB: vmov r1, s0
34; THUMB: str r1, [r0]
35
36 %add = fadd float %x, %y
37 %0 = load %struct.anon** @a, align 4
38 %x1 = getelementptr inbounds %struct.anon* %0, i32 0, i32 0
39 store float %add, float* %x1, align 1
40 ret void
41}
42
43; Doublewords require only word-alignment.
44; rdar://10528060
45%struct.anon.0 = type { double }
46
47@foo_unpacked = common global %struct.anon.0 zeroinitializer, align 4
48
49define void @word_aligned_f64_store(double %a, double %b) nounwind {
50entry:
51; ARM: @word_aligned_f64_store
52; THUMB: @word_aligned_f64_store
53 %add = fadd double %a, %b
54 store double %add, double* getelementptr inbounds (%struct.anon.0* @foo_unpacked, i32 0, i32 0), align 4
55; ARM: vstr d16, [r0]
56; THUMB: vstr d16, [r0]
57 ret void
58}
59
60; Check unaligned loads of floats
61%class.TAlignTest = type <{ i16, float }>
62
63define zeroext i1 @unaligned_f32_load(%class.TAlignTest* %this) nounwind align 2 {
64entry:
65; ARM: @unaligned_f32_load
66; THUMB: @unaligned_f32_load
67 %0 = alloca %class.TAlignTest*, align 4
68 store %class.TAlignTest* %this, %class.TAlignTest** %0, align 4
69 %1 = load %class.TAlignTest** %0
70 %2 = getelementptr inbounds %class.TAlignTest* %1, i32 0, i32 1
71 %3 = load float* %2, align 1
72 %4 = fcmp une float %3, 0.000000e+00
73; ARM: ldr r[[R:[0-9]+]], [r0, #2]
74; ARM: vmov s0, r[[R]]
75; ARM: vcmpe.f32 s0, #0
76; THUMB: ldr.w r[[R:[0-9]+]], [r0, #2]
77; THUMB: vmov s0, r[[R]]
78; THUMB: vcmpe.f32 s0, #0
79 ret i1 %4
80}
81
82define void @unaligned_i16_store(i16 %x, i16* %y) nounwind {
83entry:
84; ARM-STRICT-ALIGN: @unaligned_i16_store
85; ARM-STRICT-ALIGN: strb
86; ARM-STRICT-ALIGN: strb
87
88; THUMB-STRICT-ALIGN: @unaligned_i16_store
89; THUMB-STRICT-ALIGN: strb
90; THUMB-STRICT-ALIGN: strb
91
92 store i16 %x, i16* %y, align 1
93 ret void
94}
95
96define i16 @unaligned_i16_load(i16* %x) nounwind {
97entry:
98; ARM-STRICT-ALIGN: @unaligned_i16_load
99; ARM-STRICT-ALIGN: ldrb
100; ARM-STRICT-ALIGN: ldrb
101
102; THUMB-STRICT-ALIGN: @unaligned_i16_load
103; THUMB-STRICT-ALIGN: ldrb
104; THUMB-STRICT-ALIGN: ldrb
105
106 %0 = load i16* %x, align 1
107 ret i16 %0
108}
109
110define void @unaligned_i32_store(i32 %x, i32* %y) nounwind {
111entry:
112; ARM-STRICT-ALIGN: @unaligned_i32_store
113; ARM-STRICT-ALIGN: strb
114; ARM-STRICT-ALIGN: strb
115; ARM-STRICT-ALIGN: strb
116; ARM-STRICT-ALIGN: strb
117
118; THUMB-STRICT-ALIGN: @unaligned_i32_store
119; THUMB-STRICT-ALIGN: strb
120; THUMB-STRICT-ALIGN: strb
121; THUMB-STRICT-ALIGN: strb
122; THUMB-STRICT-ALIGN: strb
123
124 store i32 %x, i32* %y, align 1
125 ret void
126}
127
128define i32 @unaligned_i32_load(i32* %x) nounwind {
129entry:
130; ARM-STRICT-ALIGN: @unaligned_i32_load
131; ARM-STRICT-ALIGN: ldrb
132; ARM-STRICT-ALIGN: ldrb
133; ARM-STRICT-ALIGN: ldrb
134; ARM-STRICT-ALIGN: ldrb
135
136; THUMB-STRICT-ALIGN: @unaligned_i32_load
137; THUMB-STRICT-ALIGN: ldrb
138; THUMB-STRICT-ALIGN: ldrb
139; THUMB-STRICT-ALIGN: ldrb
140; THUMB-STRICT-ALIGN: ldrb
141
142 %0 = load i32* %x, align 1
143 ret i32 %0
144}