https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109000
Bug ID: 109000
Summary: LoongArch: "unmatched" -mabi and -mfpu setting can
break ABI silently
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: xry111 at gcc dot gnu.org
Target Milestone: ---
$ cat t.c
double t(double x)
{
return 1.0 / x;
}
$ ~/gcc-trunk/bin/gcc t.c -O2 -c -mabi=lp64s
$ readelf -a t.o | grep FLOAT
Flags: 0x41, SOFT-FLOAT, OBJ-v1
$ objdump -d t.o
t.o: file format elf64-loongarch
Disassembly of section .text:
0000000000000000 <t>:
0: 01145800 frecip.d $fa0, $fa0
4: 4c000020 jirl $zero, $ra, 0
So we now have a SOFT-FLOAT object using FPR for arguments and return values
:(.
