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| author | Lulu Cheng <chenglulu@loongson.cn> | 2023-08-28 11:30:21 +0800 |
|---|---|---|
| committer | Lulu Cheng <chenglulu@loongson.cn> | 2023-08-29 08:58:04 +0800 |
| commit | 88ae53a3852dac73fdecb9cfcee2c5100cee832f (patch) | |
| tree | 4c6cd2f2ec036d00123aa5badc33320acff4a2b8 | |
| parent | 61dcc62c120538793472849d22421668951c9959 (diff) | |
| download | gcc-88ae53a3852dac73fdecb9cfcee2c5100cee832f.zip gcc-88ae53a3852dac73fdecb9cfcee2c5100cee832f.tar.gz gcc-88ae53a3852dac73fdecb9cfcee2c5100cee832f.tar.bz2 | |
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.
| -rw-r--r-- | gcc/common/config/loongarch/loongarch-common.cc | 1 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/loongarch/sign-extend.c | 25 |
3 files changed, 28 insertions, 2 deletions
diff --git a/gcc/common/config/loongarch/loongarch-common.cc b/gcc/common/config/loongarch/loongarch-common.cc index fce32fa..c5ed37d 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/doc/invoke.texi b/gcc/doc/invoke.texi index a32dabf..16aa92b 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -12639,8 +12639,8 @@ Attempt to remove redundant extension instructions. This is especially helpful for the x86-64 architecture, which implicitly zero-extends in 64-bit registers after writing to their lower 32-bit half. -Enabled for Alpha, AArch64, PowerPC, RISC-V, SPARC, h83000 and x86 at levels -@option{-O2}, @option{-O3}, @option{-Os}. +Enabled for Alpha, AArch64, LoongArch, PowerPC, RISC-V, SPARC, h83000 and x86 at +levels @option{-O2}, @option{-O3}, @option{-Os}. @opindex fno-lifetime-dse @opindex flifetime-dse 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 0000000..3f339d0 --- /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; +} |