https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78694
Bug ID: 78694
Summary: [ARM] ICE with -mthumb -ftls-model=local-exec -O2
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: sebastian.hu...@embedded-brains.de
Target Milestone: ---
Created attachment 40264
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40264&action=edit
Test case
The attached test case generates an ICE during GCC build (libgomp):
/build/git-build/b-gcc-git-arm-rtems4.12/./gcc/xgcc
-B/build/git-build/b-gcc-git-arm-rtems4.12/./gcc/ -mthumb
-ftls-model=local-exec -O2 -S task.i
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c: In function
'gomp_create_target_task':
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c:778:1: error: invalid rtl
sharing found in the insn
}
^
(insn 1584 1583 1585 (unspec_volatile [
(const:SI (unspec:SI [
(symbol_ref:SI ("gomp_tls_data") [flags 0xea] <var_decl
0x7f2ddaf7d3f0 gomp_tls_data>)
(const_int 4 [0x4])
] UNSPEC_TLS))
] VUNSPEC_POOL_4) -1
(nil))
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c:778:1: error: shared rtx
(const:SI (unspec:SI [
(symbol_ref:SI ("gomp_tls_data") [flags 0xea] <var_decl
0x7f2ddaf7d3f0 gomp_tls_data>)
(const_int 4 [0x4])
] UNSPEC_TLS))
/home/EB/sebastian_h/archive/gcc-git/libgomp/task.c:778:1: internal compiler
error: internal consistency failure
0x6852ed verify_rtx_sharing
/home/EB/sebastian_h/archive/gcc-git/gcc/emit-rtl.c:2751
0x68527a verify_rtx_sharing
/home/EB/sebastian_h/archive/gcc-git/gcc/emit-rtl.c:2784
0x68564b verify_insn_sharing
/home/EB/sebastian_h/archive/gcc-git/gcc/emit-rtl.c:2837
0x689d27 verify_rtl_sharing()
/home/EB/sebastian_h/archive/gcc-git/gcc/emit-rtl.c:2860
0x91872b execute_function_todo
/home/EB/sebastian_h/archive/gcc-git/gcc/passes.c:1982
0x919105 execute_todo
/home/EB/sebastian_h/archive/gcc-git/gcc/passes.c:2015
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
