https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91957
Bug ID: 91957
Summary: [10 Regression] ICE in lra_assign building libgcc for
csky-linux-gnuabiv2 soft-float
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: jsm28 at gcc dot gnu.org
CC: rsandifo at gcc dot gnu.org
Target Milestone: ---
Target: csky*-*-*
Created attachment 46988
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46988&action=edit
preprocessed source
The function-ABI changes (r276306 is OK, r276339 fails) appear to have
introduced an ICE building libgcc for csky-linux-gnuabiv2 soft-float (configure
options: --disable-multilib). Preprocessed source attached. Compile with -O2.
ICE seen with current sources (r276417) is as follows. In the hard-float
case, libgcc builds OK but there is a similar ICE building glibc, which I guess
has the same cause so I haven't filed a separate bug for it.
/scratch/jmyers/glibc/many10/src/gcc/libgcc/libgcc2.c: In function '__mulsc3':
/scratch/jmyers/glibc/many10/src/gcc/libgcc/libgcc2.c:2030:1: internal compiler
error: in lra_assign, at lra-assigns.c:1647
2030 | }
| ^
0x9feabc lra_assign(bool&)
/scratch/jmyers/glibc/many10/src/gcc/gcc/lra-assigns.c:1647
0x9f9314 lra(_IO_FILE*)
/scratch/jmyers/glibc/many10/src/gcc/gcc/lra.c:2482
0x9ad1f1 do_reload
/scratch/jmyers/glibc/many10/src/gcc/gcc/ira.c:5511
0x9ad1f1 execute
/scratch/jmyers/glibc/many10/src/gcc/gcc/ira.c:5697
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
