[Bug target/106096] [13 regression] ICE building stage 2 libgcc on loongarch64-linux-gnu because stage 2 gcc is miscompiled

xry111 at mengyan1223 dot wang gcc-bugzilla@gcc.gnu.org
Tue Jun 28 09:59:32 GMT 2022


--- Comment #9 from Xi Ruoyao <xry111 at mengyan1223 dot wang> ---
Created attachment 53214
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53214&action=edit
patch removing r13 from SIBCALL_REGS

I'm testing this patch now.

I suggest to apply this for trunk and gcc-12 branch first (as gcc-12 also
miscompiles the test case).

Then if the reordering of RA preference can improve performance, you may apply
it later (and also adjust the changes in this patch again).

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