https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78222
Bug ID: 78222
Summary: target-tilegx: Incorrect bundle: let addli in y pipe
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: gang.chen.5i5j at gmail dot com
Target Milestone: ---
Host: chroot ubuntu 15.10 under Android 5.1 x86_64
Target: tilegx
Build: Just building, use the latest version
1. Version:
COLLECT_GCC=/upstream/build-gcc/./gcc/xgcc
COLLECT_LTO_WRAPPER=/upstream/build-gcc/./gcc/lto-wrapper
Target: tilegx-gchen-linux
Configured with: ../gcc/configure --target=tilegx-gchen-linux --disable-nls
--enable-languages=c --disable-threads --disable-shared --disable-libssp
--disable-libquadmath --disable-libgomp --disable-libatomic
--prefix=/upstream/release-tile --disable-multilib
--with-headers=/upstream/release-tile/include
Thread model: single
gcc version 7.0.0 20161105 (experimental) (GCC)
2. Contents of test.c:
typedef int DItype __attribute__ ((mode (DI)));
typedef unsigned int UTItype __attribute__ ((mode (TI)));
UTItype test (UTItype *rp)
{
union
{
DItype low;
UTItype ll;
} uu, nn, dd, rr;
UTItype w, r;
DItype c1, c2, d0 = dd.low, n1 = nn.low;
if (uu.low < 0)
c1 = ~c1, c2 = ~c2, uu.ll = -uu.ll;
rr.low = n1 % d0;
w = rr.ll;
if (c1)
r = -r;
if (c2)
r = -r;
*rp = r;
return w;
}
3. Compiling issue:
/upstream/build-gcc/./gcc/xgcc -B/upstream/build-gcc/./gcc/
-B/upstream/release-tile/tilegx-gchen-linux/bin/
-B/upstream/release-tile/tilegx-gchen-linux/lib/ -O2 -c test.c
-fnon-call-exceptions -save-temps
test.s: Assembler messages:
test.s:84: Error: Invalid combination of instructions for bundle.
4. Contents of output (test.s):
1 .file "test.c"
2 .global __moddi3
3 .text
4 .align 8
5 .global test
6 .type test, @function
7 test:
8 .LFB0:
9 .cfi_startproc
10 {
11 st sp, lr
12 .cfi_offset 55, 0
13 move r29, sp
14 addi r28, sp, -120
15 }
16 addi sp, sp, -128
17 .cfi_def_cfa_offset 128
18 {
19 st r28, r29
20 addi r27, sp, 120
21 addi r26, sp, 112
22 }
23 {
24 st r27, r34
25 .cfi_offset 34, -8
26 addi r25, sp, 104
27 addi r10, sp, 16
28 }
29 {
30 st r26, r33
31 .cfi_offset 33, -16
32 addi r24, sp, 96
33 addi r11, sp, 48
34 }
35 {
36 st r25, r32
37 .cfi_offset 32, -24
38 addi r27, r27, -32
39 }
40 ld r10, r10
41 st r24, r31
42 .cfi_offset 31, -32
43 {
44 ld r1, r11
45 addi r11, sp, 32
46 cmpltsi r12, r10, 0
47 }
48 {
49 st r27, r30
50 .cfi_offset 30, -40
51 move r30, r0
52 }
53 {
54 ld r0, r11
55 movei r11, -1
56 }
57 cmovnez r33, r12, r11
58 {
59 cmovnez r34, r12, r11
60 jal __moddi3
61 }
62 {
63 addi r10, sp, 72
64 mz r31, r33, r31
65 }
66 {
67 ld r1, r10
68 mz r32, r33, r32
69 }
70 beqz r34, .L4
71 {
72 sub r31, zero, r31
73 sub r32, zero, r32
74 }
75 cmpne r10, r31, zero
76 sub r32, r32, r10
77 .L4:
78 move r10, r30
79 st_add r10, r31, 8
80 {
81 st r10, r32
82 addi r28, sp, 120
83 addli r29, sp, 128
84 }
85 {
86 ld r34, r28
87 addi r27, sp, 112
88 addi r26, sp, 104
89 }
90 {
91 addi r25, sp, 96
92 addi r28, r28, -32
93 ld lr, r29
94 }
95 ld r33, r27
96 ld r32, r26
97 ld r31, r25
98 ld r30, r28
99 {
100 addli sp, sp, 128
101 .cfi_restore 54
102 .cfi_restore 30
103 .cfi_restore 31
104 .cfi_restore 32
105 .cfi_restore 33
106 .cfi_restore 34
107 .cfi_restore 55
108 .cfi_def_cfa_offset 0
109 jrp lr
110 }
111 .cfi_endproc
112 .LFE0:
113 .size test, .-test
114 .ident "GCC: (GNU) 7.0.0 20161105 (experimental)"
115 .section .note.GNU-stack,"",@progbits
