http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56524
Bug #: 56524
Summary: Compiler ICE when compiling with -mips16
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: s...@gcc.gnu.org
CC: al...@redhat.com
Target: mips*-*-*
This test program (from glibc) generates an ICE when compiled with -mips16.
The internal error we are hitting was part of the fix for pr52555. The test
program is a bit finicky, I think it is dependent on the order that GCC
processes the functions. I don't know if this is a bug in the generic code
or in mips specific code and how mips handles the mips16 flag.
% cat mktime.i
unsigned int __bswap_32 (unsigned int __bsx)
{ return __builtin_bswap32 (__bsx); }
#pragma GCC optimize ("wrapv")
inline int leapyear (long long int year)
{
return
((year & 3) == 0
&& (year % 100 != 0
|| ((year / 100) & 3) == (- (1900 / 100) & 3)));
}
mips-mti-linux-gnu-gcc -c -mips16 mktime.i
mktime.i:7:1: internal compiler error: in save_optabs_if_changed, at
optabs.c:6221
{
^
0x8198e5 save_optabs_if_changed(tree_node*)
/local/home/sellcey/gcc/linux_mips16/src/gcc/gcc/optabs.c:6221
0x4b090b decl_attributes(tree_node**, tree_node*, int)
/local/home/sellcey/gcc/linux_mips16/src/gcc/gcc/attribs.c:545
0x4cf728 start_function(c_declspecs*, c_declarator*, tree_node*)
/local/home/sellcey/gcc/linux_mips16/src/gcc/gcc/c/c-decl.c:7727
0x557114 c_common_parse_file()
/local/home/sellcey/gcc/linux_mips16/src/gcc/gcc/c-family/c-opts.c:1046
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