I spoke too soon after ~7.5 runs I got the following with -marm:
cc -iquote /root/qemu-5.0/b/user-static/target/arm -iquote target/arm -iquote
/root/qemu-5.0/tcg/arm -isystem /root/qemu-5.0/linux-headers -isystem
/root/qemu-5.0/b/user-static/linux-headers -iquote . -iquote /root/qemu-5.0
-iquote /root/qemu-5.0/accel/tcg -iquote /root/qemu-5.0/include -iquote
/root/qemu-5.0/disas/libvixl -pthread -I/usr/include/glib-2.0
-I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -D_GNU_SOURCE
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes
-Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes
-fno-strict-aliasing -fno-common -fwrapv -std=gnu99 -g -O2
-fdebug-prefix-map=/root/qemu-5.0=. -fstack-protector-strong -Wformat
-Werror=format-security -marm -Wdate-time -D_FORTIFY_SOURCE=2
-Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value
-Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security
-Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration
-Wold-style-definition -Wtype-limits -fstack-protector-strong
-DLEGACY_RDMA_REG_MR -I/usr/include/libpng16
-I/root/qemu-5.0/capstone/include -isystem ../linux-headers -iquote .. -iquote
/root/qemu-5.0/target/arm -DNEED_CPU_H -iquote /root/qemu-5.0/include
-I/root/qemu-5.0/linux-user/aarch64 -I/root/qemu-5.0/linux-user/host/arm
-I/root/qemu-5.0/linux-user -Ilinux-user/aarch64 -MMD -MP -MT
target/arm/helper.o -MF target/arm/helper.d -O2 -U_FORTIFY_SOURCE
-D_FORTIFY_SOURCE=2 -g -c -o target/arm/helper.o
/root/qemu-5.0/target/arm/helper.c
during RTL pass: reload
/root/qemu-5.0/linux-user/syscall.c: In function ‘do_syscall’:
/root/qemu-5.0/linux-user/syscall.c:12519:1: internal compiler error:
Segmentation fault
12519 | }
| ^
cc -iquote /root/qemu-5.0/b/user-static/target/arm -iquote target/arm -iquote
/root/qemu-5.0/tcg/arm -isystem /root/qemu-5.0/linux-headers -isystem
/root/qemu-5.0/b/user-static/linux-headers -iquote . -iquote /root/qemu-5.0
-iquote /root/qemu-5.0/accel/tcg -iquote /root/qemu-5.0/include -iquote
/root/qemu-5.0/disas/libvixl -pthread -I/usr/include/glib-2.0
-I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -D_GNU_SOURCE
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes
-Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes
-fno-strict-aliasing -fno-common -fwrapv -std=gnu99 -g -O2
-fdebug-prefix-map=/root/qemu-5.0=. -fstack-protector-strong -Wformat
-Werror=format-security -marm -Wdate-time -D_FORTIFY_SOURCE=2
-Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value
-Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security
-Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration
-Wold-style-definition -Wtype-limits -fstack-protector-strong
-DLEGACY_RDMA_REG_MR -I/usr/include/libpng16
-I/root/qemu-5.0/capstone/include -isystem ../linux-headers -iquote .. -iquote
/root/qemu-5.0/target/arm -DNEED_CPU_H -iquote /root/qemu-5.0/include
-I/root/qemu-5.0/linux-user/aarch64 -I/root/qemu-5.0/linux-user/host/arm
-I/root/qemu-5.0/linux-user -Ilinux-user/aarch64 -MMD -MP -MT
target/arm/translate-sve.o -MF target/arm/translate-sve.d -O2 -U_FORTIFY_SOURCE
-D_FORTIFY_SOURCE=2 -g -c -o target/arm/translate-sve.o
/root/qemu-5.0/target/arm/translate-sve.c
0x532d6b crash_signal
../../src/gcc/toplev.c:328
0x41d0c7 add_regs_to_insn_regno_info
../../src/gcc/lra.c:1515
0x41d1c9 add_regs_to_insn_regno_info
../../src/gcc/lra.c:1537
0x41d1c9 add_regs_to_insn_regno_info
../../src/gcc/lra.c:1537
0x41e28f lra_update_insn_regno_info(rtx_insn*)
../../src/gcc/lra.c:1630
0x42c1af lra_constraints(bool)
../../src/gcc/lra-constraints.c:4970
0x41f483 lra(_IO_FILE*)
../../src/gcc/lra.c:2443
0x3f0915 do_reload
../../src/gcc/ira.c:5527
0x3f0915 execute
../../src/gcc/ira.c:5713
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https://bugs.launchpad.net/bugs/1890435
Title:
gcc-10 breaks on armhf (flaky): internal compiler error: Segmentation
fault
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