From 4eaf66148ac7d99889325a2c3c78c78e130dba2a Mon Sep 17 00:00:00 2001
From: Marek Chalupa <mchqwerty@gmail.com>
Date: Wed, 29 Nov 2023 13:41:23 +0100
Subject: [PATCH] tools/llvm-pta-dump: turn on `-ir` if `-dot` was turned on

Dumping to graphviz works only for internal representation,
so it make sense to turn it on if `-dot` is required.
Other option would be to raise a warning or abort with the
message, but I think automatically turning that on is better.

Fixes #455.
---
 tools/llvm-pta-dump.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/llvm-pta-dump.cpp b/tools/llvm-pta-dump.cpp
index 44cdfd859..28f9f6966 100644
--- a/tools/llvm-pta-dump.cpp
+++ b/tools/llvm-pta-dump.cpp
@@ -781,6 +781,11 @@ int main(int argc, char *argv[]) {
         callgraph = true;
     }
 
+    if (todot && !dump_ir) {
+        llvm::errs() << "Switch -dot requires -ir, switching -ir on.";
+        dump_ir = true;
+    }
+
     llvm::LLVMContext context;
     std::unique_ptr<llvm::Module> M =
             parseModule("llvm-pta-dump", context, options);