Re: [PATCH] LoongArch: Allow s9 as a register alias

2024-02-29 Thread chenglulu 



在 2024/2/29 下午3:14, Xi Ruoyao 写道:

The psABI allows using s9 as an alias of r22.

gcc/ChangeLog:

* config/loongarch/loongarch.h (ADDITIONAL_REGISTER_NAMES): Add
s9 as an alias of r22.
---

Bootstrapped and regtested on loongarch64-linux-gnu.  Ok for trunk?


I think a test is needed.

Others LGTM.

Thanks!



  gcc/config/loongarch/loongarch.h | 1 +
  1 file changed, 1 insertion(+)

diff --git a/gcc/config/loongarch/loongarch.h b/gcc/config/loongarch/loongarch.h
index 8b453ab3140..bf2351f0968 100644
--- a/gcc/config/loongarch/loongarch.h
+++ b/gcc/config/loongarch/loongarch.h
@@ -931,6 +931,7 @@ typedef struct {
{ "t8",   20 + GP_REG_FIRST },\
{ "x",21 + GP_REG_FIRST },\
{ "fp",   22 + GP_REG_FIRST },\
+  { "s9",22 + GP_REG_FIRST },\
{ "s0",   23 + GP_REG_FIRST },\
{ "s1",   24 + GP_REG_FIRST },\
{ "s2",   25 + GP_REG_FIRST },\

[PATCH] LoongArch: Allow s9 as a register alias

2024-02-28 Thread Xi Ruoyao 
The psABI allows using s9 as an alias of r22.

gcc/ChangeLog:

* config/loongarch/loongarch.h (ADDITIONAL_REGISTER_NAMES): Add
s9 as an alias of r22.
---

Bootstrapped and regtested on loongarch64-linux-gnu.  Ok for trunk?

 gcc/config/loongarch/loongarch.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/config/loongarch/loongarch.h b/gcc/config/loongarch/loongarch.h
index 8b453ab3140..bf2351f0968 100644
--- a/gcc/config/loongarch/loongarch.h
+++ b/gcc/config/loongarch/loongarch.h
@@ -931,6 +931,7 @@ typedef struct {
   { "t8",  20 + GP_REG_FIRST },\
   { "x",   21 + GP_REG_FIRST },\
   { "fp",  22 + GP_REG_FIRST },\
+  { "s9",  22 + GP_REG_FIRST },\
   { "s0",  23 + GP_REG_FIRST },\
   { "s1",  24 + GP_REG_FIRST },\
   { "s2",  25 + GP_REG_FIRST },\
-- 
2.44.0