This adds minimal support for the Ziccid[1] (Instruction/data coherence
and consistency) extension, which depends on Ziccif.

[1] https://github.com/riscv/riscv-isa-manual/blob/main/src/unpriv/ziccid.adoc

gcc/ChangeLog:

        * config/riscv/riscv-ext.def (ziccid): Add new extension.
        * config/riscv/riscv-ext.opt: Ditto.
        * doc/riscv-ext.texi: Ditto.

gcc/testsuite/ChangeLog:

        * gcc.target/riscv/zi-ext.c: Add ziccid to arch test.
        * gcc.target/riscv/ziccid-version.c: New test.
        * gcc.target/riscv/ziccid.c: New test.

---
 gcc/config/riscv/riscv-ext.def                | 13 ++++++++++++
 gcc/config/riscv/riscv-ext.opt                |  2 ++
 gcc/doc/riscv-ext.texi                        |  4 ++++
 gcc/testsuite/gcc.target/riscv/zi-ext.c       |  8 ++++++--
 .../gcc.target/riscv/ziccid-version.c         | 20 +++++++++++++++++++
 gcc/testsuite/gcc.target/riscv/ziccid.c       | 20 +++++++++++++++++++
 6 files changed, 65 insertions(+), 2 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/riscv/ziccid-version.c
 create mode 100644 gcc/testsuite/gcc.target/riscv/ziccid.c

diff --git a/gcc/config/riscv/riscv-ext.def b/gcc/config/riscv/riscv-ext.def
index 25f7f29d470..f3c7df67643 100644
--- a/gcc/config/riscv/riscv-ext.def
+++ b/gcc/config/riscv/riscv-ext.def
@@ -285,6 +285,19 @@ DEFINE_RISCV_EXT(
   /* BITMASK_BIT_POSITION*/ BITMASK_NOT_YET_ALLOCATED,
   /* EXTRA_EXTENSION_FLAGS */ 0)
 
+DEFINE_RISCV_EXT(
+  /* NAME */ ziccid,
+  /* UPPERCASE_NAME */ ZICCID,
+  /* FULL_NAME */ "Instruction/data coherence and consistency extension",
+  /* DESC */ "",
+  /* URL */ ,
+  /* DEP_EXTS */ ({"ziccif"}),
+  /* SUPPORTED_VERSIONS */ ({{1, 0}}),
+  /* FLAG_GROUP */ zi,
+  /* BITMASK_GROUP_ID */ BITMASK_NOT_YET_ALLOCATED,
+  /* BITMASK_BIT_POSITION*/ BITMASK_NOT_YET_ALLOCATED,
+  /* EXTRA_EXTENSION_FLAGS */ 0)
+
 DEFINE_RISCV_EXT(
   /* NAME */ ziccif,
   /* UPPERCASE_NAME */ ZICCIF,
diff --git a/gcc/config/riscv/riscv-ext.opt b/gcc/config/riscv/riscv-ext.opt
index 843b95fc35b..77572cec189 100644
--- a/gcc/config/riscv/riscv-ext.opt
+++ b/gcc/config/riscv/riscv-ext.opt
@@ -139,6 +139,8 @@ Mask(ZICBOZ) Var(riscv_zi_subext)
 
 Mask(ZICCAMOA) Var(riscv_zi_subext)
 
+Mask(ZICCID) Var(riscv_zi_subext)
+
 Mask(ZICCIF) Var(riscv_zi_subext)
 
 Mask(ZICCLSM) Var(riscv_zi_subext)
diff --git a/gcc/doc/riscv-ext.texi b/gcc/doc/riscv-ext.texi
index 41614790ab8..699e5bc4d3a 100644
--- a/gcc/doc/riscv-ext.texi
+++ b/gcc/doc/riscv-ext.texi
@@ -78,6 +78,10 @@
 @tab 1.0
 @tab Main memory supports all atomics in A
 
+@item @samp{ziccid}
+@tab 1.0
+@tab Instruction/data coherence and consistency extension
+
 @item @samp{ziccif}
 @tab 1.0
 @tab Main memory supports instruction fetch with atomicity requirement
diff --git a/gcc/testsuite/gcc.target/riscv/zi-ext.c 
b/gcc/testsuite/gcc.target/riscv/zi-ext.c
index bfad74f7717..980c0179b75 100644
--- a/gcc/testsuite/gcc.target/riscv/zi-ext.c
+++ b/gcc/testsuite/gcc.target/riscv/zi-ext.c
@@ -1,6 +1,6 @@
 /* { dg-do compile { target { ! riscv_abi_e } } } */
-/* { dg-options "-march=rv64gc_zic64b_ziccamoa_ziccif_zicclsm_ziccrse" { 
target { rv64 } } } */
-/* { dg-options "-march=rv32gc_zic64b_ziccamoa_ziccif_zicclsm_ziccrse" { 
target { rv32 } } } */
+/* { dg-options "-march=rv64gc_zic64b_ziccamoa_ziccid_ziccif_zicclsm_ziccrse" 
{ target { rv64 } } } */
+/* { dg-options "-march=rv32gc_zic64b_ziccamoa_ziccid_ziccif_zicclsm_ziccrse" 
{ target { rv32 } } } */
 
 #ifndef __riscv_zic64b
 #error "Feature macro for 'zic64b' not defined"
@@ -10,6 +10,10 @@
 #error "Feature macro for 'ziccamoa' not defined"
 #endif
 
+#ifndef __riscv_ziccid
+#error "Feature macro for 'ziccid' not defined"
+#endif
+
 #ifndef __riscv_ziccif
 #error "Feature macro for 'ziccif' not defined"
 #endif
diff --git a/gcc/testsuite/gcc.target/riscv/ziccid-version.c 
b/gcc/testsuite/gcc.target/riscv/ziccid-version.c
new file mode 100644
index 00000000000..1aeefa91213
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/ziccid-version.c
@@ -0,0 +1,20 @@
+/* { dg-do compile { target { ! riscv_abi_e } } } */
+/* { dg-options "-mriscv-attribute -march=rv64i_ziccid1p0 -mabi=lp64" { target 
{ rv64 } } } */
+/* { dg-options "-mriscv-attribute -march=rv32i_ziccid1p0 -mabi=ilp32" { 
target { rv32 } } } */
+
+#ifndef __riscv_ziccid
+#error "Feature macro for 'ziccid' not defined"
+#endif
+
+#ifndef __riscv_ziccif
+#error "Feature macro for 'ziccif' not defined"
+#endif
+
+int
+foo (void)
+{
+  return 0;
+}
+
+/* { dg-final { scan-assembler ".attribute arch, 
\"rv64i2p1_ziccid1p0_ziccif1p0\"" { target { rv64 } } } } */
+/* { dg-final { scan-assembler ".attribute arch, 
\"rv32i2p1_ziccid1p0_ziccif1p0\"" { target { rv32 } } } } */
diff --git a/gcc/testsuite/gcc.target/riscv/ziccid.c 
b/gcc/testsuite/gcc.target/riscv/ziccid.c
new file mode 100644
index 00000000000..5c2dde7868d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/ziccid.c
@@ -0,0 +1,20 @@
+/* { dg-do compile { target { ! riscv_abi_e } } } */
+/* { dg-options "-mriscv-attribute -march=rv64i_ziccid -mabi=lp64" { target { 
rv64 } } } */
+/* { dg-options "-mriscv-attribute -march=rv32i_ziccid -mabi=ilp32" { target { 
rv32 } } } */
+
+#ifndef __riscv_ziccid
+#error "Feature macro for 'ziccid' not defined"
+#endif
+
+#ifndef __riscv_ziccif
+#error "Feature macro for 'ziccif' not defined"
+#endif
+
+int
+foo (void)
+{
+  return 0;
+}
+
+/* { dg-final { scan-assembler ".attribute arch, 
\"rv64i2p1_ziccid1p0_ziccif1p0\"" { target { rv64 } } } } */
+/* { dg-final { scan-assembler ".attribute arch, 
\"rv32i2p1_ziccid1p0_ziccif1p0\"" { target { rv32 } } } } */
-- 
2.43.0

Reply via email to