https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98298
Bug ID: 98298
Summary: [11 regression] g++.dg/pch/system-1.C assembly
comparison fails after r11-6072
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:cf4ed3b41594b6935a337fe0aaf8149eadf88751, r11-6072
make -k check-gcc RUNTESTFLAGS="pch.exp=g++.dg/pch/system-1.C"
FAIL: g++.dg/pch/system-1.C -g assembly comparison
FAIL: g++.dg/pch/system-1.C -O2 -g assembly comparison
FAIL: g++.dg/pch/system-1.C -O2 assembly comparison
# of expected passes 9
# of unexpected failures 3
spawn -ignore SIGHUP
/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/g++/../../xg++
-B/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/g++/../../
/home/seurer/gcc/git/gcc-test/gcc/testsuite/g++.dg/pch/system-1.C
-fdiagnostics-plain-output -nostdinc++
-I/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu
-I/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include
-I/home/seurer/gcc/git/gcc-test/libstdc++-v3/libsupc++
-I/home/seurer/gcc/git/gcc-test/libstdc++-v3/include/backward
-I/home/seurer/gcc/git/gcc-test/libstdc++-v3/testsuite/util -fmessage-length=0
-g -I. -Dwithout_PCH -S -o system-1.s
PASS: g++.dg/pch/system-1.C -g -I. -Dwithout_PCH (test for excess errors)
line #101
< lwz 9,184(31)
> lwz 10,184(31)
line #102
< cmpwi 0,9,90
> li 9,0
line #103
< bne 0,.L5
> ori 9,9,0xffff
line #104
< .file 2
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/iostream"
> cmpw 0,10,9
line #105
< .loc 2 80 34 is_stmt 1
> bne 0,.L5
line #106
< addis 3,2,_ZStL8__ioinit@toc@ha
> .file 2
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/iostream"
line #107
< addi 3,3,_ZStL8__ioinit@toc@l
> .loc 2 80 34 is_stmt 1
line #108
< bl _ZNSt8ios_base4InitC1Ev
> addis 3,2,_ZStL8__ioinit@toc@ha
line #109
< nop
> addi 3,3,_ZStL8__ioinit@toc@l
line #110
< .loc 2 80 25
> bl _ZNSt8ios_base4InitC1Ev
line #111
< addis 5,2,__dso_handle@toc@ha
> nop
line #112
< addi 5,5,__dso_handle@toc@l
> .loc 2 80 25
line #113
< addis 4,2,_ZStL8__ioinit@toc@ha
> addis 5,2,__dso_handle@toc@ha
line #114
< addi 4,4,_ZStL8__ioinit@toc@l
> addi 5,5,__dso_handle@toc@l
line #115
< addis 9,2,.LC2@toc@ha
> addis 4,2,_ZStL8__ioinit@toc@ha
line #116
< ld 3,.LC2@toc@l(9)
> addi 4,4,_ZStL8__ioinit@toc@l
line #117
< bl __cxa_atexit
> addis 9,2,.LC2@toc@ha
line #118
< nop
> ld 3,.LC2@toc@l(9)
line #119
< .L5:
> bl __cxa_atexit
line #120
< .loc 1 7 1
> nop
line #121
< nop
> .L5:
line #122
< addi 1,31,128
> .loc 1 7 1
line #123
< .cfi_def_cfa 1, 0
> nop
line #124
< ld 0,16(1)
> addi 1,31,128
line #125
< mtlr 0
> .cfi_def_cfa 1, 0
line #126
< ld 31,-8(1)
> ld 0,16(1)
line #127
< blr
> mtlr 0
line #128
< .long 0
> ld 31,-8(1)
line #129
< .byte 0,9,0,1,128,1,0,1
> blr
line #130
< .cfi_endproc
> .long 0
line #131
< .LFE2228:
> .byte 0,9,0,1,128,1,0,1
line #132
< .size
_Z41__static_initialization_and_destruction_0ii,.-.L._Z41__static_initialization_and_destruction_0ii
> .cfi_endproc
line #133
< .align 2
> .LFE2228:
line #134
< .section ".opd","aw"
> .size
> _Z41__static_initialization_and_destruction_0ii,.-.L._Z41__static_initialization_and_destruction_0ii
line #135
< .align 3
> .align 2
line #136
< _GLOBAL__sub_I.00090_main:
> .section ".opd","aw"
line #137
< .quad .L._GLOBAL__sub_I.00090_main,.TOC.@tocbase,0
> .align 3
line #138
< .previous
> _GLOBAL__sub_I_main:
line #139
< .type _GLOBAL__sub_I.00090_main, @function
> .quad .L._GLOBAL__sub_I_main,.TOC.@tocbase,0
line #140
< .L._GLOBAL__sub_I.00090_main:
> .previous
line #141
< .LFB2229:
> .type _GLOBAL__sub_I_main, @function
line #142
< .loc 1 7 1
> .L._GLOBAL__sub_I_main:
line #143
< .cfi_startproc
> .LFB2229:
line #144
< mflr 0
> .loc 1 7 1
line #145
< std 0,16(1)
> .cfi_startproc
line #146
< std 31,-8(1)
> mflr 0
line #147
< stdu 1,-128(1)
> std 0,16(1)
line #148
< .cfi_def_cfa_offset 128
> std 31,-8(1)
line #149
< .cfi_offset 65, 16
> stdu 1,-128(1)
line #150
< .cfi_offset 31, -8
> .cfi_def_cfa_offset 128
line #151
< mr 31,1
> .cfi_offset 65, 16
line #152
< .cfi_def_cfa_register 31
> .cfi_offset 31, -8
line #153
< .loc 1 7 1
> mr 31,1
line #154
< li 4,90
> .cfi_def_cfa_register 31
line #155
< li 3,1
> .loc 1 7 1
line #156
< bl _Z41__static_initialization_and_destruction_0ii
> li 4,-1
line #157
< addi 1,31,128
> rldicl 4,4,0,48
line #158
< .cfi_def_cfa 1, 0
> li 3,1
line #159
< ld 0,16(1)
> bl _Z41__static_initialization_and_destruction_0ii
line #160
< mtlr 0
> addi 1,31,128
line #161
< ld 31,-8(1)
> .cfi_def_cfa 1, 0
line #162
< blr
> ld 0,16(1)
line #163
< .long 0
> mtlr 0
line #164
< .byte 0,9,0,1,128,1,0,1
> ld 31,-8(1)
line #165
< .cfi_endproc
> blr
line #166
< .LFE2229:
> .long 0
line #167
< .size _GLOBAL__sub_I.00090_main,.-.L._GLOBAL__sub_I.00090_main
> .byte 0,9,0,1,128,1,0,1
line #168
< .section .init_array.00090,"aw"
> .cfi_endproc
line #169
< .align 3
> .LFE2229:
line #170
< .quad _GLOBAL__sub_I.00090_main
> .size _GLOBAL__sub_I_main,.-.L._GLOBAL__sub_I_main
line #171
< .section ".text"
> .section .init_array,"aw"
line #172
< .Letext0:
> .align 3
line #173
< .file 3
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu/bits/c++config.h"
> .quad _GLOBAL__sub_I_main
line #174
< .file 4
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cwchar"
> .section ".text"
line #175
< .file 5
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/exception_ptr.h"
> .Letext0:
line #176
< .file 6
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/type_traits"
> .file 3
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu/bits/c++config.h"
line #177
< .file 7
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/debug/debug.h"
> .file 4
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cwchar"
line #178
< .file 8
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/char_traits.h"
> .file 5
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/exception_ptr.h"
line #179
< .file 9
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cstdint"
> .file 6
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/type_traits"
line #180
< .file 10
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/clocale"
> .file 7
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/debug/debug.h"
line #181
< .file 11
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/string_view"
> .file 8
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/char_traits.h"
line #182
< .file 12
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h"
> .file 9
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cstdint"
line #183
< .file 13
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cstdlib"
> .file 10
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/clocale"
line #184
< .file 14
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cstdio"
> .file 11
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/string_view"
line #185
< .file 15
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/system_error"
> .file 12
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h"
line #186
< .file 16
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/ios_base.h"
> .file 13
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cstdlib"
line #187
< .file 17
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cwctype"
> .file 14
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cstdio"
line #188
< .file 18
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/iosfwd"
> .file 15
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/system_error"
line #189
< .file 19
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/ostream"
> .file 16
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/ios_base.h"
line #190
< .file 20
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/predefined_ops.h"
> .file 17
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/cwctype"
line #191
< .file 21 "/usr/include/stdio.h"
> .file 18
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/iosfwd"
line #192
< .file 22 "/usr/include/libio.h"
> .file 19
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/ostream"
line #193
< .file 23 "/home/seurer/gcc/git/build/gcc-test/gcc/include/stdarg.h"
> .file 20
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/bits/predefined_ops.h"
line #194
< .file 24 "/home/seurer/gcc/git/build/gcc-test/gcc/include/stddef.h"
> .file 21 "/usr/include/stdio.h"
line #195
< .file 25 "/usr/include/wchar.h"
> .file 22 "/usr/include/libio.h"
line #196
< .file 26 "/usr/include/time.h"
> .file 23 "/home/seurer/gcc/git/build/gcc-test/gcc/include/stdarg.h"
line #197
< .file 27 "/usr/include/stdint.h"
> .file 24 "/home/seurer/gcc/git/build/gcc-test/gcc/include/stddef.h"
line #198
< .file 28 "/usr/include/locale.h"
> .file 25 "/usr/include/wchar.h"
line #199
< .file 29 "/usr/include/bits/types.h"
> .file 26 "/usr/include/time.h"
line #200
< .file 30
"/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu/bits/atomic_word.h"
> .file 27 "/usr/include/stdint.h"
line #201
< .file 31 "/usr/include/stdlib.h"
> .file 28 "/usr/include/locale.h"
line #202
< .file 32 "/usr/include/_G_config.h"
> .file 29 "/usr/include/bits/types.h"
line #203
< .file 33 "/usr/include/wctype.h"
> .file 30
> "/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu/bits/atomic_word.h"
line #204
< .section .debug_info,"",@progbits
> .file 31 "/usr/include/stdlib.h"
line #205
< .Ldebug_info0:
> .file 32 "/usr/include/_G_config.h"
line #206
< .4byte 0x23aa
> .file 33 "/usr/include/wctype.h"
line #207
< .2byte 0x4
> .section .debug_info,"",@progbits
line #208
< .4byte .Ldebug_abbrev0
> .Ldebug_info0:
line #209
< .byte 0x8
> .4byte 0x23aa
line #210
< .uleb128 0x1
> .2byte 0x4
line #211
< .4byte .LASF349
> .4byte .Ldebug_abbrev0
line #212
< .byte 0x4
> .byte 0x8
line #213
< .4byte .LASF350
> .uleb128 0x1
line #214
< .4byte .LASF351
> .4byte .LASF349
line #215
< .8byte .Ltext0
> .byte 0x4
line #216
< .8byte .Letext0-.Ltext0
> .4byte .LASF350
line #217
< .4byte .Ldebug_line0
> .4byte .LASF351
line #218
< .uleb128 0x2
> .8byte .Ltext0
line #219
< .string "std"
> .8byte .Letext0-.Ltext0
line #220
< .byte 0x3
> .4byte .Ldebug_line0
line #221
< .2byte 0x116
> .uleb128 0x2
line #222
< .byte 0xb
> .string "std"
line #223
< .4byte 0xb81
> .byte 0x3
line #224
< .uleb128 0x3
> .2byte 0x116
line #225
< .4byte .LASF0
> .byte 0xb
line #226
< .byte 0x3
> .4byte 0xb81
line #227
< .2byte 0x12e
> .uleb128 0x3
line #228
< .byte 0x41
> .4byte .LASF0
line #229
< .uleb128 0x4
> .byte 0x3
line #230
< .byte 0x3
> .2byte 0x12e
line #231
< .2byte 0x12e
> .byte 0x41
(and lots, lots more)
