https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93242
Bug ID: 93242 Summary: [MIPS] patchable-function-entry broken Product: gcc Version: 8.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: renat at idrisov dot info Target Milestone: --- Created attachment 47640 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47640&action=edit preprocessed file Hi All, when I try to use -fpatchable-function-entry on MIPS, it produces broken assembly file: c++ -mips64r6 -mabi=64 -o empty.o -c empty.c -fpatchable-function-entry=1 -v -save-temps ... empty.s: Assembler messages: empty.s:14: Error: junk at end of line, first unrecognized character is `%' I have attached preprocessed file, but it contains nothing special, source program is: ``` int main() { return 0; } ``` If I look at assembly file, it indeed has a bogus: ``` .module fp=64 .module oddspreg .text .align 2 .globl main .section __patchable_function_entries,"a",@progbits .8byte $LPFE1 .text $LPFE1: %(nop%) <---- no such instruction $LFB0 = . .cfi_startproc .set nomips16 .set nomicromips .ent main .type main, @function main: .frame $fp,16,$31 # vars= 0, regs= 1/0, args= 0, gp= 0 .mask 0x40000000,-8 .fmask 0x00000000,0 ... ``` I can provide a patch to fix it, but first I want to confirm it is a bug. Thank you!