basic-thumb2-instructions.s revision 20ed2e7939d6a8e804a51897c3af4588deb48be2 
1@ RUN: llvm-mc -triple=thumbv7-apple-darwin -show-encoding < %s | FileCheck %s
2  .syntax unified
3  .globl _func
4
5@ Check that the assembler can handle the documented syntax from the ARM ARM.
6@ For complex constructs like shifter operands, check more thoroughly for them
7@ once then spot check that following instructions accept the form generally.
8@ This gives us good coverage while keeping the overall size of the test
9@ more reasonable.
10
11
12@ FIXME: Some 3-operand instructions have a 2-operand assembly syntax.
13
14_func:
15@ CHECK: _func
16
17@------------------------------------------------------------------------------
18@ ADC (immediate)
19@------------------------------------------------------------------------------
20        adc r0, r1, #4
21        adcs r0, r1, #0
22        adc r1, r2, #255
23        adc r3, r7, #0x00550055
24        adc r8, r12, #0xaa00aa00
25        adc r9, r7, #0xa5a5a5a5
26        adc r5, r3, #0x87000000
27        adc r4, r2, #0x7f800000
28        adc r4, r2, #0x00000680
29
30@ CHECK: adc	r0, r1, #4              @ encoding: [0x41,0xf1,0x04,0x00]
31@ CHECK: adcs	r0, r1, #0              @ encoding: [0x51,0xf1,0x00,0x00]
32@ CHECK: adc	r1, r2, #255            @ encoding: [0x42,0xf1,0xff,0x01]
33@ CHECK: adc	r3, r7, #5570645        @ encoding: [0x47,0xf1,0x55,0x13]
34@ CHECK: adc	r8, r12, #2852170240    @ encoding: [0x4c,0xf1,0xaa,0x28]
35@ CHECK: adc	r9, r7, #2779096485     @ encoding: [0x47,0xf1,0xa5,0x39]
36@ CHECK: adc	r5, r3, #2264924160     @ encoding: [0x43,0xf1,0x07,0x45]
37@ CHECK: adc	r4, r2, #2139095040     @ encoding: [0x42,0xf1,0xff,0x44]
38@ CHECK: adc	r4, r2, #1664           @ encoding: [0x42,0xf5,0xd0,0x64]
39
40@------------------------------------------------------------------------------
41@ ADC (register)
42@------------------------------------------------------------------------------
43        adc r4, r5, r6
44        adcs r4, r5, r6
45        adc.w r9, r1, r3
46        adcs.w r9, r1, r3
47        adc	r0, r1, r3, ror #4
48        adcs	r0, r1, r3, lsl #7
49        adc.w	r0, r1, r3, lsr #31
50        adcs.w	r0, r1, r3, asr #32
51
52@ CHECK: adc.w	r4, r5, r6              @ encoding: [0x45,0xeb,0x06,0x04]
53@ CHECK: adcs.w	r4, r5, r6              @ encoding: [0x55,0xeb,0x06,0x04]
54@ CHECK: adc.w	r9, r1, r3              @ encoding: [0x41,0xeb,0x03,0x09]
55@ CHECK: adcs.w	r9, r1, r3              @ encoding: [0x51,0xeb,0x03,0x09]
56@ CHECK: adc.w	r0, r1, r3, ror #4      @ encoding: [0x41,0xeb,0x33,0x10]
57@ CHECK: adcs.w	r0, r1, r3, lsl #7      @ encoding: [0x51,0xeb,0xc3,0x10]
58@ CHECK: adc.w	r0, r1, r3, lsr #31     @ encoding: [0x41,0xeb,0xd3,0x70]
59@ CHECK: adcs.w	r0, r1, r3, asr #32     @ encoding: [0x51,0xeb,0x23,0x00]
60
61
62@------------------------------------------------------------------------------
63@ ADD (immediate)
64@------------------------------------------------------------------------------
65        itet eq
66        addeq r1, r2, #4
67        addwne r5, r3, #1023
68        addeq r4, r5, #293
69        add r2, sp, #1024
70        add r2, r8, #0xff00
71        add r2, r3, #257
72        addw r2, r3, #257
73        add r12, r6, #0x100
74        addw r12, r6, #0x100
75        adds r1, r2, #0x1f0
76
77@ CHECK: itet	eq                      @ encoding: [0x0a,0xbf]
78@ CHECK: addeq	r1, r2, #4              @ encoding: [0x11,0x1d]
79@ CHECK: addwne	r5, r3, #1023           @ encoding: [0x03,0xf2,0xff,0x35]
80@ CHECK: addweq	r4, r5, #293            @ encoding: [0x05,0xf2,0x25,0x14]
81@ CHECK: add.w	r2, sp, #1024           @ encoding: [0x0d,0xf5,0x80,0x62]
82@ CHECK: add.w	r2, r8, #65280          @ encoding: [0x08,0xf5,0x7f,0x42]
83@ CHECK: addw	r2, r3, #257            @ encoding: [0x03,0xf2,0x01,0x12]
84@ CHECK: addw	r2, r3, #257            @ encoding: [0x03,0xf2,0x01,0x12]
85@ CHECK: add.w	r12, r6, #256           @ encoding: [0x06,0xf5,0x80,0x7c]
86@ CHECK: addw	r12, r6, #256           @ encoding: [0x06,0xf2,0x00,0x1c]
87@ CHECK: adds.w	r1, r2, #496            @ encoding: [0x12,0xf5,0xf8,0x71]
88
89
90@------------------------------------------------------------------------------
91@ CBZ/CBNZ
92@------------------------------------------------------------------------------
93        cbnz    r7, #6
94        cbnz    r7, #12
95
96@ CHECK: cbnz    r7, #6                  @ encoding: [0x1f,0xb9]
97@ CHECK: cbnz    r7, #12                 @ encoding: [0x37,0xb9]
98
99@------------------------------------------------------------------------------
100@ IT
101@------------------------------------------------------------------------------
102@ Test encodings of a few full IT blocks, not just the IT instruction
103
104        iteet eq
105        addeq r0, r1, r2
106        nopne
107        subne r5, r6, r7
108        addeq r1, r2, #4
109
110@ CHECK: iteet	eq                      @ encoding: [0x0d,0xbf]
111@ CHECK: addeq	r0, r1, r2              @ encoding: [0x88,0x18]
112@ CHECK: nopne                          @ encoding: [0x00,0xbf]
113@ CHECK: subne	r5, r6, r7              @ encoding: [0xf5,0x1b]
114@ CHECK: addeq	r1, r2, #4              @ encoding: [0x11,0x1d]
115