[llvm] Add "avoidmuls" to STAR-MC1 also (PR #123706)

[Albert Huang via llvm-commits]

https://github.com/AlbertHuang-CPU created https://github.com/llvm/llvm-project/pull/123706

PR #112540 as the reference.

>From 0fc4fbe6c4ca1b9dc3d4ab22579dd1b41d536c15 Mon Sep 17 00:00:00 2001
From: Albert Huang <Albert.huang at armchina.com>
Date: Tue, 21 Jan 2025 15:57:49 +0800
Subject: [PATCH 1/2] Update ARMProcessors.td

---
 llvm/lib/Target/ARM/ARMProcessors.td | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Target/ARM/ARMProcessors.td b/llvm/lib/Target/ARM/ARMProcessors.td
index 213b104bcfdb2f..7453727a7cff0c 100644
--- a/llvm/lib/Target/ARM/ARMProcessors.td
+++ b/llvm/lib/Target/ARM/ARMProcessors.td
@@ -377,6 +377,7 @@ def : ProcessorModel<"star-mc1", CortexM4Model,         [ARMv8mMainline,
                                                          FeatureHasSlowFPVFMx,
                                                          FeatureUseMISched,
                                                          FeatureHasNoBranchPredictor,
+                                                         FeatureAvoidMULS,
                                                          FeatureFixCMSE_CVE_2021_35465]>;
 
 def : ProcessorModel<"cortex-m35p", CortexM4Model,      [ARMv8mMainline,

>From 0d1c21486212714b3cf2d153595e547d2fcd112f Mon Sep 17 00:00:00 2001
From: Albert Huang <Albert.huang at armchina.com>
Date: Tue, 21 Jan 2025 16:01:16 +0800
Subject: [PATCH 2/2] Update avoidmuls.mir

---
 llvm/test/CodeGen/Thumb2/avoidmuls.mir | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/llvm/test/CodeGen/Thumb2/avoidmuls.mir b/llvm/test/CodeGen/Thumb2/avoidmuls.mir
index 865152068fdf7f..7bfa4b90600637 100644
--- a/llvm/test/CodeGen/Thumb2/avoidmuls.mir
+++ b/llvm/test/CodeGen/Thumb2/avoidmuls.mir
@@ -1,4 +1,5 @@
 # RUN: llc -mtriple=thumbv7m-none-eabi -mcpu=cortex-m33 -run-pass=thumb2-reduce-size %s -o - | FileCheck %s --check-prefix=MUL
+# RUN: llc -mtriple=thumbv7m-none-eabi -mcpu=star-mc1 -run-pass=thumb2-reduce-size %s -o - | FileCheck %s --check-prefix=MUL
 # RUN: llc -mtriple=thumbv7m-none-eabi --run-pass=thumb2-reduce-size %s -o - | FileCheck %s --check-prefix=MULS
 
 ---
@@ -17,4 +18,4 @@ body:             |
 
 # MULS-LABEL: test
 # MULS: tMUL
-# MULS-NOT: t2MUL
\ No newline at end of file
+# MULS-NOT: t2MUL