http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55904
Bug #: 55904
Summary: g++.dg/torture/vshuf-v8hi.C fails on MIPS with -O3
-mel -mips16
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: s...@gcc.gnu.org
Created attachment 29102
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29102
preprocessed test case
The test g++.dg/torture/vshuf-v8hi.C fails with an ICE when compiled with
-O3 -mel -mips16. (All three options are required.) I see this with the
mips-mti-elf and mips-mti-linux-gnu targets and believe it can be reproduced
with any MIPS target that can generate little-endian MIPS16 code.
I am attaching a preprocessed version of vshuf-v8hi.C.
% obj-mips-mti-linux-gnu/gcc/final/gcc/cc1plus -quiet -mel -O3 -mips16
-std=c++11 x.i
x.i: In function 'int main()':
x.i:67:1: internal compiler error: in change_address_1, at emit-rtl.c:2002
}
^
0x82eef8 change_address_1
/local/home/sellcey/nightly/src/gcc/gcc/emit-rtl.c:2002
0x82f5fb adjust_address_1(rtx_def*, machine_mode, long, int, int, int, long)
/local/home/sellcey/nightly/src/gcc/gcc/emit-rtl.c:2134
0xa4df5e gen_lowpart_general(machine_mode, rtx_def*)
/local/home/sellcey/nightly/src/gcc/gcc/rtlhooks.c:79
0xd3f60e output_154
/local/home/sellcey/nightly/src/gcc/gcc/config/mips/mips.md:2912
0x87178e final_scan_insn(rtx_def*, _IO_FILE*, int, int, int*)
/local/home/sellcey/nightly/src/gcc/gcc/final.c:2792
0x87232f final(rtx_def*, _IO_FILE*, int)
/local/home/sellcey/nightly/src/gcc/gcc/final.c:1908
0x872559 rest_of_handle_final
/local/home/sellcey/nightly/src/gcc/gcc/final.c:4271
