[llvm] a11dfd0 - [RISCV] Add sifive-x280 processor with all of its extensions

[Michael Maitland via llvm-commits]

Author: Michael Maitland
Date: 2023-05-05T08:47:57-07:00
New Revision: a11dfd0fe6b1c38495f7de9858a2d1839d2902b9

URL: https://github.com/llvm/llvm-project/commit/a11dfd0fe6b1c38495f7de9858a2d1839d2902b9
DIFF: https://github.com/llvm/llvm-project/commit/a11dfd0fe6b1c38495f7de9858a2d1839d2902b9.diff

LOG: [RISCV] Add sifive-x280 processor with all of its extensions

Add sifive-x280 processor that uses the SiFive7 scheduler model.

Differential Revision: https://reviews.llvm.org/D149710

Added: 
    

Modified: 
    clang/test/Driver/riscv-cpus.c
    clang/test/Misc/target-invalid-cpu-note.c
    llvm/docs/ReleaseNotes.rst
    llvm/lib/Target/RISCV/RISCVProcessors.td

Removed: 
    


################################################################################
diff  --git a/clang/test/Driver/riscv-cpus.c b/clang/test/Driver/riscv-cpus.c
index 76325311668d8..a484b07ce330a 100644
--- a/clang/test/Driver/riscv-cpus.c
+++ b/clang/test/Driver/riscv-cpus.c
@@ -167,6 +167,20 @@
 // MTUNE-E31-MCPU-E76-SAME: "-target-feature" "+zicsr" "-target-feature" "+zifencei"
 // MTUNE-E31-MCPU-E76-SAME: "-tune-cpu" "sifive-e76"
 
+// mcpu with default march include experimental extensions
+// RUN: %clang -target riscv64 -### -c %s 2>&1 -menable-experimental-extensions -mcpu=sifive-x280 | FileCheck -check-prefix=MCPU-SIFIVE-X280 %s
+// MCPU-SIFIVE-X280: "-nostdsysteminc" "-target-cpu" "sifive-x280"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+m" "-target-feature" "+a" "-target-feature" "+f" "-target-feature" "+d"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+c" "-target-feature" "+v"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+zicsr" "-target-feature" "+zifencei"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+zfh"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+zba" "-target-feature" "+zbb"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+experimental-zvfh"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+zvl128b"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+zvl256b" "-target-feature" "+zvl32b"
+// MCPU-SIFIVE-X280-SAME: "-target-feature" "+zvl512b" "-target-feature" "+zvl64b"
+// MCPU-SIFIVE-X280-SAME: "-target-abi" "lp64d"
+
 // Check failed cases
 
 // RUN: %clang --target=riscv32 -### -c %s 2>&1 -mcpu=generic-rv321 | FileCheck -check-prefix=FAIL-MCPU-NAME %s

diff  --git a/clang/test/Misc/target-invalid-cpu-note.c b/clang/test/Misc/target-invalid-cpu-note.c
index 1f205163a966e..ba43ba50accd9 100644
--- a/clang/test/Misc/target-invalid-cpu-note.c
+++ b/clang/test/Misc/target-invalid-cpu-note.c
@@ -85,7 +85,7 @@
 
 // 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: generic-rv64, rocket-rv64, sifive-s21, sifive-s51, sifive-s54, sifive-s76, sifive-u54, sifive-u74{{$}}
+// RISCV64-NEXT: note: valid target CPU values are: generic-rv64, rocket-rv64, sifive-s21, sifive-s51, sifive-s54, sifive-s76, sifive-u54, sifive-u74{{$}}, sifive-x280
 
 // 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'
@@ -93,4 +93,4 @@
 
 // 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: generic-rv64, rocket-rv64, sifive-s21, sifive-s51, sifive-s54, sifive-s76, sifive-u54, sifive-u74, generic, rocket, sifive-7-series{{$}}
+// TUNE-RISCV64-NEXT: note: valid target CPU values are: generic-rv64, rocket-rv64, sifive-s21, sifive-s51, sifive-s54, sifive-s76, sifive-u54, sifive-u74, sifive-x280, generic, rocket, sifive-7-series{{$}}

diff  --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index c764a50f88b22..845cee9e75455 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -175,6 +175,7 @@ Changes to the RISC-V Backend
   ``RISCV::parseCPU``. The ``CPUKind`` enum is no longer part of the
   RISCVTargetParser.h interface. Similar for ``parseTuneCPUkind`` and
   ``checkTuneCPUKind``.
+* Add sifive-x280 processor.
 
 Changes to the WebAssembly Backend
 ----------------------------------

diff  --git a/llvm/lib/Target/RISCV/RISCVProcessors.td b/llvm/lib/Target/RISCV/RISCVProcessors.td
index 67b0364aa2fd7..69edacc4058c1 100644
--- a/llvm/lib/Target/RISCV/RISCVProcessors.td
+++ b/llvm/lib/Target/RISCV/RISCVProcessors.td
@@ -166,6 +166,22 @@ def SIFIVE_U74 : RISCVProcessorModel<"sifive-u74",
                                       FeatureStdExtC],
                                      [TuneSiFive7]>;
 
+def SIFIVE_X280 : RISCVProcessorModel<"sifive-x280", SiFive7Model,
+                                      [Feature64Bit,
+                                       FeatureStdExtZifencei,
+                                       FeatureStdExtM,
+                                       FeatureStdExtA,
+                                       FeatureStdExtF,
+                                       FeatureStdExtD,
+                                       FeatureStdExtC,
+                                       FeatureStdExtV,
+                                       FeatureStdExtZvl512b,
+                                       FeatureStdExtZfh,
+                                       FeatureStdExtZvfh,
+                                       FeatureStdExtZba,
+                                       FeatureStdExtZbb],
+                                      [TuneSiFive7]>;
+
 def SYNTACORE_SCR1_BASE : RISCVProcessorModel<"syntacore-scr1-base",
                                               SyntacoreSCR1Model,
                                               [Feature32Bit,