On Sat, 2023-11-18 at 16:16 +0800, chenglulu wrote: > Pushed to r14-5567. > > 在 2023/11/16 下午3:27, Lulu Cheng 写道: > > When compiling with '-mcmodel=medium', the function call is made through > > 'pcaddu18i+jirl' if binutils supports call36, otherwise the > > native implementation 'pcalau12i+jirl' is used. > > > > gcc/ChangeLog: > > > > * config.in: Regenerate. > > * config/loongarch/loongarch-opts.h (HAVE_AS_SUPPORT_CALL36): Define > > macro. > > * config/loongarch/loongarch.cc (loongarch_legitimize_call_address): > > If binutils supports call36, the function call is not split over expand. > > * config/loongarch/loongarch.md: Add call36 generation code. > > * config/loongarch/predicates.md: Likewise. > > * configure: Regenerate. > > * configure.ac: Check whether binutils supports call36.
With this change I get some test failures with "old" Binutils 2.41: FAIL: gcc.target/loongarch/func-call-medium-1.c scan-assembler test:.*la.global\\t.*g\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-1.c scan-assembler test1:.*la.global\\t.*f\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-1.c scan-assembler test2:.*la.local\\t.*l\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-2.c scan-assembler test:.*la.global\\t.*g\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-2.c scan-assembler test1:.*la.local\\t.*f\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-2.c scan-assembler test2:.*la.local\\t.*l\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-3.c scan-assembler test2:.*la.local\\t.*l\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-4.c scan-assembler test1:.*la.local\\t.*f\\n\\tjirl FAIL: gcc.target/loongarch/func-call-medium-4.c scan-assembler test2:.*la.local\\t.*l\\n\\tjirl Some strange thing is happening: with -mexplicit-relocs=auto or always I get pcalau12i + jirl as expected, but with -mexplicit-relocs=none I get "pcaddu18i $r1,%call36(g)" and jirl. This seems irony (!). -- Xi Ruoyao <xry...@xry111.site> School of Aerospace Science and Technology, Xidian University
