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File _service:tar_scm:LoongArch-Enable-free-starting-at-O2.patch of Package gcc
From 0369836718ffb25ac64c135e748f409302068a56 Mon Sep 17 00:00:00 2001 From: Lulu Cheng <chenglulu@loongson.cn> Date: Mon, 28 Aug 2023 11:30:21 +0800 Subject: [PATCH 052/124] LoongArch: Enable '-free' starting at -O2. gcc/ChangeLog: * common/config/loongarch/loongarch-common.cc: Enable '-free' on O2 and above. * doc/invoke.texi: Modify the description information of the '-free' compilation option and add the LoongArch description. gcc/testsuite/ChangeLog: * gcc.target/loongarch/sign-extend.c: New test. Signed-off-by: Peng Fan <fanpeng@loongson.cn> Signed-off-by: ticat_fp <fanpeng@loongson.cn> --- .../config/loongarch/loongarch-common.cc | 1 + .../gcc.target/loongarch/sign-extend.c | 25 +++++++++++++++++++ 2 files changed, 26 insertions(+) create mode 100644 gcc/testsuite/gcc.target/loongarch/sign-extend.c diff --git a/gcc/common/config/loongarch/loongarch-common.cc b/gcc/common/config/loongarch/loongarch-common.cc index f8b4660fa..309fcb280 100644 --- a/gcc/common/config/loongarch/loongarch-common.cc +++ b/gcc/common/config/loongarch/loongarch-common.cc @@ -35,6 +35,7 @@ static const struct default_options loongarch_option_optimization_table[] = { { OPT_LEVELS_ALL, OPT_fasynchronous_unwind_tables, NULL, 1 }, { OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 }, + { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 }, { OPT_LEVELS_NONE, 0, NULL, 0 } }; diff --git a/gcc/testsuite/gcc.target/loongarch/sign-extend.c b/gcc/testsuite/gcc.target/loongarch/sign-extend.c new file mode 100644 index 000000000..3f339d06b --- /dev/null +++ b/gcc/testsuite/gcc.target/loongarch/sign-extend.c @@ -0,0 +1,25 @@ +/* { dg-do compile } */ +/* { dg-options "-mabi=lp64d -O2" } */ +/* { dg-final { scan-assembler-times "slli.w" 1 } } */ + +extern int PL_savestack_ix; +extern int PL_regsize; +extern int PL_savestack_max; +void Perl_savestack_grow_cnt (int need); +extern void Perl_croak (char *); + +int +S_regcppush(int parenfloor) +{ + int retval = PL_savestack_ix; + int paren_elems_to_push = (PL_regsize - parenfloor) * 4; + int p; + + if (paren_elems_to_push < 0) + Perl_croak ("panic: paren_elems_to_push < 0"); + + if (PL_savestack_ix + (paren_elems_to_push + 6) > PL_savestack_max) + Perl_savestack_grow_cnt (paren_elems_to_push + 6); + + return retval; +} -- 2.33.0
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