From: Dongyan Chen <chendongyan@isrc.iscas.ac.cn>
Date: Tue, 6 May 2025 23:09:54 +0000 (-0600)
Subject: [PATCH] RISC-V: Minimal support for sdtrig and ssstrict extensions.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82126b26d17ed2c5ee48ca51e3fed69e898c9a20;p=thirdparty%2Fgcc.git

[PATCH] RISC-V: Minimal support for sdtrig and ssstrict extensions.

This patch support sdtrig and ssstrict extensions[1].
To enable GCC to recognize and process sdtrig and ssstrict extensions correctly
at compile time.

[1] https://github.com/riscv/riscv-profiles/blob/main/src/rva23-profile.adoc

gcc/ChangeLog:

	* common/config/riscv/riscv-common.cc: New extension.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/arch-47.c: New test.
---

diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc
index 58c7d205b33..0233e1a108b 100644
--- a/gcc/common/config/riscv/riscv-common.cc
+++ b/gcc/common/config/riscv/riscv-common.cc
@@ -432,6 +432,8 @@ static const struct riscv_ext_version riscv_ext_version_table[] =
   {"zcmp", ISA_SPEC_CLASS_NONE, 1, 0},
   {"zcmt", ISA_SPEC_CLASS_NONE, 1, 0},
 
+  {"sdtrig",  ISA_SPEC_CLASS_NONE, 1, 0},
+
   {"smaia",     ISA_SPEC_CLASS_NONE, 1, 0},
   {"smepmp",    ISA_SPEC_CLASS_NONE, 1, 0},
   {"smstateen", ISA_SPEC_CLASS_NONE, 1, 0},
@@ -440,6 +442,7 @@ static const struct riscv_ext_version riscv_ext_version_table[] =
   {"sscofpmf",  ISA_SPEC_CLASS_NONE, 1, 0},
   {"ssstateen", ISA_SPEC_CLASS_NONE, 1, 0},
   {"sstc",      ISA_SPEC_CLASS_NONE, 1, 0},
+  {"ssstrict",  ISA_SPEC_CLASS_NONE, 1, 0},
 
   {"svade",   ISA_SPEC_CLASS_NONE, 1, 0},
   {"svadu",   ISA_SPEC_CLASS_NONE, 1, 0},
diff --git a/gcc/testsuite/gcc.target/riscv/arch-47.c b/gcc/testsuite/gcc.target/riscv/arch-47.c
new file mode 100644
index 00000000000..06bc80fe780
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/arch-47.c
@@ -0,0 +1,5 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc_sdtrig_ssstrict -mabi=lp64" } */
+int foo()
+{
+}