llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Jim Lin (tclin914)

<details>
<summary>Changes</summary>

Andes A25/AX25 are 32/64bit, 5-stage pipeline, linux-capable CPUs that 
implement the RV[32|64]IMAFDC_Zba_Zbb_Zbc_Zbs ISA extensions. They are 
developed by Andes Technology https://www.andestech.com, a RISC-V IP provider.

The overviews for A25/AX25:
https://www.andestech.com/en/products-solutions/andescore-processors/riscv-a25/ 
https://www.andestech.com/en/products-solutions/andescore-processors/riscv-ax25/

Scheduling model will be implemented in a later PR.

---
Full diff: https://github.com/llvm/llvm-project/pull/140681.diff


4 Files Affected:

- (modified) clang/test/Driver/riscv-cpus.c (+36) 
- (modified) clang/test/Misc/target-invalid-cpu-note/riscv.c (+8-4) 
- (modified) llvm/docs/ReleaseNotes.md (+1) 
- (modified) llvm/lib/Target/RISCV/RISCVProcessors.td (+32) 


``````````diff
diff --git a/clang/test/Driver/riscv-cpus.c b/clang/test/Driver/riscv-cpus.c
index dacdb03fd09d9..cebf41aa626a7 100644
--- a/clang/test/Driver/riscv-cpus.c
+++ b/clang/test/Driver/riscv-cpus.c
@@ -699,6 +699,42 @@
 // RUN: %clang --target=riscv64 -### -c %s 2>&1 -mtune=syntacore-scr7 | 
FileCheck -check-prefix=MTUNE-SYNTACORE-SCR7 %s
 // MTUNE-SYNTACORE-SCR7: "-tune-cpu" "syntacore-scr7"
 
+// RUN: %clang --target=riscv32 -### -c %s 2>&1 -mcpu=andes-a25 | FileCheck 
-check-prefix=MCPU-ANDES-A25 %s
+// MCPU-ANDES-A25: "-target-cpu" "andes-a25"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+m"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+a"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+f"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+d"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+c"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+zicsr"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+zifencei"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+zba"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+zbb"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+zbc"
+// MCPU-ANDES-A25-SAME: "-target-feature" "+zbs"
+// MCPU-ANDES-A25-SAME: "-target-abi" "ilp32d"
+
+// RUN: %clang --target=riscv32 -### -c %s 2>&1 -mtune=andes-a25 | FileCheck 
-check-prefix=MTUNE-ANDES-A25 %s
+// MTUNE-ANDES-A25: "-tune-cpu" "andes-a25"
+
+// RUN: %clang --target=riscv64 -### -c %s 2>&1 -mcpu=andes-ax25 | FileCheck 
-check-prefix=MCPU-ANDES-AX25 %s
+// MCPU-ANDES-AX25: "-target-cpu" "andes-ax25"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+m"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+a"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+f"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+d"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+c"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+zicsr"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+zifencei"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+zba"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+zbb"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+zbc"
+// MCPU-ANDES-AX25-SAME: "-target-feature" "+zbs"
+// MCPU-ANDES-AX25-SAME: "-target-abi" "lp64d"
+
+// RUN: %clang --target=riscv64 -### -c %s 2>&1 -mtune=andes-ax25 | FileCheck 
-check-prefix=MTUNE-ANDES-AX25 %s
+// MTUNE-ANDES-AX25: "-tune-cpu" "andes-ax25"
+
 // RUN: %clang --target=riscv32 -### -c %s 2>&1 -mcpu=andes-n45 | FileCheck 
-check-prefix=MCPU-ANDES-N45 %s
 // MCPU-ANDES-N45: "-target-cpu" "andes-n45"
 // MCPU-ANDES-N45-SAME: "-target-feature" "+m"
diff --git a/clang/test/Misc/target-invalid-cpu-note/riscv.c 
b/clang/test/Misc/target-invalid-cpu-note/riscv.c
index b4e83e59d296f..c57bde8aa531a 100644
--- a/clang/test/Misc/target-invalid-cpu-note/riscv.c
+++ b/clang/test/Misc/target-invalid-cpu-note/riscv.c
@@ -5,7 +5,8 @@
 // RUN: not %clang_cc1 -triple riscv32 -target-cpu not-a-cpu -fsyntax-only %s 
2>&1 | FileCheck %s --check-prefix RISCV32
 // RISCV32: error: unknown target CPU 'not-a-cpu'
 // RISCV32-NEXT: note: valid target CPU values are:
-// RISCV32-SAME: {{^}} andes-a45
+// RISCV32-SAME: {{^}} andes-a25
+// RISCV32-SAME: {{^}}, andes-a45
 // RISCV32-SAME: {{^}}, andes-n45
 // RISCV32-SAME: {{^}}, generic-rv32
 // RISCV32-SAME: {{^}}, rocket-rv32
@@ -26,7 +27,8 @@
 // RUN: not %clang_cc1 -triple riscv64 -target-cpu not-a-cpu -fsyntax-only %s 
2>&1 | FileCheck %s --check-prefix RISCV64
 // RISCV64: error: unknown target CPU 'not-a-cpu'
 // RISCV64-NEXT: note: valid target CPU values are:
-// RISCV64-SAME: {{^}} andes-ax45
+// RISCV64-SAME: {{^}} andes-ax25
+// RISCV64-SAME: {{^}}, andes-ax45
 // RISCV64-SAME: {{^}}, andes-nx45
 // RISCV64-SAME: {{^}}, generic-rv64
 // RISCV64-SAME: {{^}}, mips-p8700
@@ -57,7 +59,8 @@
 // RUN: not %clang_cc1 -triple riscv32 -tune-cpu not-a-cpu -fsyntax-only %s 
2>&1 | FileCheck %s --check-prefix TUNE-RISCV32
 // TUNE-RISCV32: error: unknown target CPU 'not-a-cpu'
 // TUNE-RISCV32-NEXT: note: valid target CPU values are:
-// TUNE-RISCV32-SAME: {{^}} andes-a45
+// TUNE-RISCV32-SAME: {{^}} andes-a25
+// TUNE-RISCV32-SAME: {{^}}, andes-a45
 // TUNE-RISCV32-SAME: {{^}}, andes-n45
 // TUNE-RISCV32-SAME: {{^}}, generic-rv32
 // TUNE-RISCV32-SAME: {{^}}, rocket-rv32
@@ -82,7 +85,8 @@
 // RUN: not %clang_cc1 -triple riscv64 -tune-cpu not-a-cpu -fsyntax-only %s 
2>&1 | FileCheck %s --check-prefix TUNE-RISCV64
 // TUNE-RISCV64: error: unknown target CPU 'not-a-cpu'
 // TUNE-RISCV64-NEXT: note: valid target CPU values are:
-// TUNE-RISCV64-SAME: {{^}} andes-ax45
+// TUNE-RISCV64-SAME: {{^}} andes-ax25
+// TUNE-RISCV64-SAME: {{^}}, andes-ax45
 // TUNE-RISCV64-SAME: {{^}}, andes-nx45
 // TUNE-RISCV64-SAME: {{^}}, generic-rv64
 // TUNE-RISCV64-SAME: {{^}}, mips-p8700
diff --git a/llvm/docs/ReleaseNotes.md b/llvm/docs/ReleaseNotes.md
index 9c8cc599a8daf..1ce796fc4a5a5 100644
--- a/llvm/docs/ReleaseNotes.md
+++ b/llvm/docs/ReleaseNotes.md
@@ -189,6 +189,7 @@ Changes to the RISC-V Backend
 * Adds assembler support for the Andes `XAndesvdot` (Andes Vector Dot Product 
extension).
 * Adds assembler support for the standard `Q` (Quad-Precision Floating Point) 
   extension.
+* `-mcpu=andes-a25` and `-mcpu=andes-ax25` were added.
   
 Changes to the WebAssembly Backend
 ----------------------------------
diff --git a/llvm/lib/Target/RISCV/RISCVProcessors.td 
b/llvm/lib/Target/RISCV/RISCVProcessors.td
index db57f5c4da24e..6d0627fa2c329 100644
--- a/llvm/lib/Target/RISCV/RISCVProcessors.td
+++ b/llvm/lib/Target/RISCV/RISCVProcessors.td
@@ -648,6 +648,38 @@ def RP2350_HAZARD3 : RISCVProcessorModel<"rp2350-hazard3",
                                           FeatureStdExtZcb,
                                           FeatureStdExtZcmp]>;
 
+def ANDES_A25 : RISCVProcessorModel<"andes-a25",
+                                    NoSchedModel,
+                                    [Feature32Bit,
+                                     FeatureStdExtI,
+                                     FeatureStdExtZicsr,
+                                     FeatureStdExtZifencei,
+                                     FeatureStdExtM,
+                                     FeatureStdExtA,
+                                     FeatureStdExtF,
+                                     FeatureStdExtD,
+                                     FeatureStdExtC,
+                                     FeatureStdExtZba,
+                                     FeatureStdExtZbb,
+                                     FeatureStdExtZbc,
+                                     FeatureStdExtZbs]>;
+
+def ANDES_AX25 : RISCVProcessorModel<"andes-ax25",
+                                     NoSchedModel,
+                                     [Feature64Bit,
+                                      FeatureStdExtI,
+                                      FeatureStdExtZicsr,
+                                      FeatureStdExtZifencei,
+                                      FeatureStdExtM,
+                                      FeatureStdExtA,
+                                      FeatureStdExtF,
+                                      FeatureStdExtD,
+                                      FeatureStdExtC,
+                                      FeatureStdExtZba,
+                                      FeatureStdExtZbb,
+                                      FeatureStdExtZbc,
+                                      FeatureStdExtZbs]>;
+
 def ANDES_N45 : RISCVProcessorModel<"andes-n45",
                                     NoSchedModel,
                                     [Feature32Bit,

``````````

</details>


https://github.com/llvm/llvm-project/pull/140681
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