https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60758
Sandra Loosemore <sandra at codesourcery dot com> changed:
What |Removed |Added
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CC| |sandra at codesourcery dot com
--- Comment #5 from Sandra Loosemore <sandra at codesourcery dot com> ---
The patch committed as r210215 is broken for -mthumb on arm-none-eabi:
libtool: compile:
/scratch/sandra/arm-fsf/obj/gcc-mainline-0-arm-none-eabi-i686-pc-linux-gnu/./gcc/xgcc
-shared-libgcc
-B/scratch/sandra/arm-fsf/obj/gcc-mainline-0-arm-none-eabi-i686-pc-linux-gnu/./gcc
-nostdinc++
-L/scratch/sandra/arm-fsf/obj/gcc-mainline-0-arm-none-eabi-i686-pc-linux-gnu/arm-none-eabi/thumb/libstdc++-v3/src
-L/scratch/sandra/arm-fsf/obj/gcc-mainline-0-arm-none-eabi-i686-pc-linux-gnu/arm-none-eabi/thumb/libstdc++-v3/src/.libs
-L/scratch/sandra/arm-fsf/obj/gcc-mainline-0-arm-none-eabi-i686-pc-linux-gnu/arm-none-eabi/thumb/libstdc++-v3/libsupc++/.libs
-B/scratch/sandra/arm-fsf/install/arm-none-eabi/bin/
-B/scratch/sandra/arm-fsf/install/arm-none-eabi/lib/ -isystem
/scratch/sandra/arm-fsf/install/arm-none-eabi/include -isystem
/scratch/sandra/arm-fsf/install/arm-none-eabi/sys-include -mthumb
-I/scratch/sandra/arm-fsf/src/gcc-mainline/libstdc++-v3/../libgcc
-I/scratch/sandra/arm-fsf/obj/gcc-mainline-0-arm-none-eabi-i686-pc-linux-gnu/arm-none-eabi/thumb/libstdc++-v3/include/arm-none-eabi
-I/scratch/sandra/arm-fsf/obj/gcc-mainline-0-arm-none-eabi-i686-pc-linux-gnu/arm-none-eabi/thumb/libstdc++-v3/include
-I/scratch/sandra/arm-fsf/src/gcc-mainline/libstdc++-v3/libsupc++
-fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections
-frandom-seed=eh_arm.lo -g -O2 -mthumb -c
/scratch/sandra/arm-fsf/src/gcc-mainline/libstdc++-v3/libsupc++/eh_arm.cc -o
eh_arm.o
/tmp/cchJLQxH.s: Assembler messages:
/tmp/cchJLQxH.s:26: Error: invalid register list to push/pop instruction --
`pop {r1,r2,r3,lr}'
It looks to me like lr is valid in the reglist for PUSH but not POP on Thumb.
Since this breaks builds, please either fix ASAP or revert the broken patch.
