[llvm-branch-commits] [llvm] [IR2Vec][llvm-ir2vec] Add support for reading from stdin (PR #149213)

[S. VenkataKeerthy via llvm-branch-commits]

https://github.com/svkeerthy updated 
https://github.com/llvm/llvm-project/pull/149213

>From 36ecab51e81c5715ca22912d18b5ae5fac33c52c Mon Sep 17 00:00:00 2001
From: svkeerthy <venkatakeer...@google.com>
Date: Wed, 16 Jul 2025 22:01:47 +0000
Subject: [PATCH] support-stdin-input-llvm-ir2vec

---
 llvm/tools/llvm-ir2vec/llvm-ir2vec.cpp | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/llvm/tools/llvm-ir2vec/llvm-ir2vec.cpp 
b/llvm/tools/llvm-ir2vec/llvm-ir2vec.cpp
index 4e88282e85c14..5743ec0f4c1e9 100644
--- a/llvm/tools/llvm-ir2vec/llvm-ir2vec.cpp
+++ b/llvm/tools/llvm-ir2vec/llvm-ir2vec.cpp
@@ -48,10 +48,10 @@ namespace ir2vec {
 
 static cl::OptionCategory IR2VecToolCategory("IR2Vec Tool Options");
 
-static cl::opt<std::string> InputFilename(cl::Positional,
-                                          cl::desc("<input bitcode file>"),
-                                          cl::Required,
-                                          cl::cat(IR2VecToolCategory));
+static cl::opt<std::string>
+    InputFilename(cl::Positional,
+                  cl::desc("<input bitcode file or '-' for stdin>"),
+                  cl::init("-"), cl::cat(IR2VecToolCategory));
 
 static cl::opt<std::string> OutputFilename("o", cl::desc("Output filename"),
                                            cl::value_desc("filename"),
@@ -287,10 +287,11 @@ int main(int argc, char **argv) {
   if (Mode == TripletMode && Level.getNumOccurrences() > 0)
     errs() << "Warning: --level option is ignored in triplet mode\n";
 
-  // Parse the input LLVM IR file
+  // Parse the input LLVM IR file or stdin
   SMDiagnostic Err;
   LLVMContext Context;
   std::unique_ptr<Module> M = parseIRFile(InputFilename, Err, Context);
+
   if (!M) {
     Err.print(argv[0], errs());
     return 1;

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