[Pass] add RISCVESP32P4FunctionSpecialization Pass

Author: chenqian

.gitlab-ci.yml

@@ -488,7 +488,7 @@ test_pie_optimizations:
     when: always
     expire_in: 1 day
   variables:
-    TEST_APP_ESP_DSP_CUSTOM_BRANCH: "llvm-21-optimization-test-v2"
+    TEST_APP_ESP_DSP_CUSTOM_BRANCH: "llvm-21-optimization-test-v3"
     UNPACK_TOOL: "tar xJvf"
   allow_failure: true
   script:

llvm/lib/Target/RISCV/CMakeLists.txt

@@ -44,6 +44,7 @@ add_llvm_target(RISCVCodeGen
   RISCVCustomLICM.cpp
   RISCVLoopUnrollAndRemainder.cpp
   RISCVESP32P4ConditionSplit.cpp
+  RISCVESP32P4FunctionSpecialization.cpp
   RISCVEsp32P4MemIntrin.cpp
   RISCVESP32P4LoopVectorizeExtractor.cpp
   RISCVIndirectBranchTracking.cpp