[llvm] [NewPM] Teach llc -passes to handle target machine analysis (PR #191704)

via llvm-commits llvm-commits at lists.llvm.org
Sun Apr 12 05:25:04 PDT 2026


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: macurtis-amd

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/191704.diff


2 Files Affected:

- (modified) llvm/include/llvm/Passes/TargetPassRegistry.inc (+18) 
- (added) llvm/test/CodeGen/AMDGPU/new-pm-req-machine-analysis.mir (+9) 


``````````diff
diff --git a/llvm/include/llvm/Passes/TargetPassRegistry.inc b/llvm/include/llvm/Passes/TargetPassRegistry.inc
index 068b27794191c..4e778e77fa128 100644
--- a/llvm/include/llvm/Passes/TargetPassRegistry.inc
+++ b/llvm/include/llvm/Passes/TargetPassRegistry.inc
@@ -92,6 +92,14 @@ if (PIC) {
     return true;                                                               \
   }
 
+#define ADD_ANALYSIS_PASS(NAME, CREATE_PASS)                                   \
+  if (Name == "require<" NAME ">") {                                           \
+    PM.addPass(                                                                \
+        RequireAnalysisPass<std::remove_reference_t<decltype(CREATE_PASS)>,    \
+                            MachineFunction>());                               \
+    return true;                                                               \
+  }
+
 PB.registerPipelineParsingCallback([=](StringRef Name, ModulePassManager &PM,
                                        ArrayRef<PassBuilder::PipelineElement>) {
 #define MODULE_PASS(NAME, CREATE_PASS) ADD_PASS(NAME, CREATE_PASS)
@@ -151,6 +159,16 @@ PB.registerPipelineParsingCallback([=](StringRef Name, FunctionPassManager &PM,
   return false;
 });
 
+PB.registerPipelineParsingCallback([=](StringRef Name,
+                                       MachineFunctionPassManager &PM,
+                                       ArrayRef<PassBuilder::PipelineElement>) {
+#define MACHINE_FUNCTION_ANALYSIS(NAME, CREATE_PASS)                           \
+  ADD_ANALYSIS_PASS(NAME, CREATE_PASS)
+#include GET_PASS_REGISTRY
+#undef MACHINE_FUNCTION_ANALYSIS
+  return false;
+});
+
 #undef ADD_PASS
 #undef ADD_PASS_WITH_PARAMS
 
diff --git a/llvm/test/CodeGen/AMDGPU/new-pm-req-machine-analysis.mir b/llvm/test/CodeGen/AMDGPU/new-pm-req-machine-analysis.mir
new file mode 100644
index 0000000000000..ab7d84be8d617
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/new-pm-req-machine-analysis.mir
@@ -0,0 +1,9 @@
+# RUN: llc -mtriple=amdgcn "-passes=require<amdgpu-resource-usage>" -filetype=null %s
+---
+name:            test
+body:             |
+  bb.0:
+    S_NOP 0
+...
+
+

``````````

</details>


https://github.com/llvm/llvm-project/pull/191704


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