https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90405
Bug ID: 90405
Summary: [10 Regression] ICE in thumb_find_work_register, at
config/arm/arm.c:7701
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
It'a probably a recent regression:
$ arm-linux-gnueabi-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr44136.c -mcpu=cortex-m0plus
-mtpcs-leaf-frame -Ofast -c
during RTL pass: pro_and_epilogue
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr44136.c: In function ‘bar’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr44136.c:27:1: internal
compiler error: in thumb_find_work_register, at config/arm/arm.c:7701
27 | }
| ^
0x59093d thumb_find_work_register
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/config/arm/arm.c:7701
0x59093d thumb_find_work_register
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/config/arm/arm.c:7644
0xcff5ef thumb1_expand_prologue()
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/config/arm/arm.c:25293
0xf0ae04 gen_prologue()
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/config/arm/arm.md:10997
0xcea5e8 target_gen_prologue
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/config/arm/arm.md:11643
0x7dd939 make_prologue_seq
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:5742
0x7ddb41 thread_prologue_and_epilogue_insns()
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:5859
0x7de0d2 rest_of_handle_thread_prologue_and_epilogue
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:6350
0x7de0d2 execute
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/function.c:6392
