Add utility to trace creation of problematic IRInsts to assist LLM in debugging (#7820)

* Initial plan

* Add SLANG_DEBUG_IR_BREAK environment variable support

Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>

* Apply code formatting to SLANG_DEBUG_IR_BREAK implementation

Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>

* Improve stack trace debugging with -rdynamic flag and backtrace_symbols

Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>

* Address PR feedback: use PlatformUtil::getEnvironmentVariable, remove -rdynamic flag, and delete fallback branch

Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>

* Address PR feedback: simplify env var parsing, move backtrace to PlatformUtil, use #if for SLANG_LINUX_FAMILY

Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>

* Address PR feedback: remove unneeded include, make backtrace() more generic by removing uid parameter

Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>

* Fix and clone source tracking.

* Add python script to dump traces.

* Update instructions.

* Batch calls to addr2line

* Cleanup claude instructions.

* update claude action.

* Remove duplicated build instructions from claude.yml workflow

Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>

* fix build error.

* Fix build errors

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>
Co-authored-by: Gangzheng Tong <tonggangzheng@gmail.com>

1 files changed, 2 insertions, 15 deletions

diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index dcc36e760..c2e0fb68e 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -189,19 +189,14 @@ jobs:
       # Run Claude Code Action with optimized environment variables
       - name: Execute Claude Code Action # Right now direct prompt to automatic PR Review
         id: claude-action
-        uses: anthropics/claude-code-action@v0.0.31
+        uses: anthropics/claude-code-action@v0.0.38
         with:
           # Direct Prompt is for testing. We shall use the triggers (on) which shall trigger this part on runtime
           custom_instructions: |
             # Build system information:
             - OS: Ubuntu Linux
-            - Build commands: 
-              * Configure: `cmake --preset default`
-              * Build: `cmake --build --preset debug`
-              * Test: `./build/Release/bin/slang-test ./tests/path/to/test.slang`
-              * Format code: `./extras/formatting.sh`
             - Project is pre-built and ready for development tasks
-            - Run formatting script before committing changes
+            - See CLAUDE.md for detailed build, test, and formatting instructions
 
             # CRITICAL: You have access to the mcp__deepwiki__ask_question tool for deep repository knowledge.
 
@@ -215,14 +210,6 @@ jobs:
               - Always follow existing code patterns and architectural decisions discovered through deepwiki
               - Consult the tool when you need context about unfamiliar parts of the codebase
 
-            # Debugging backend crashes or invalid downstream code:
-
-              Note that any issues in the generated target code could stem from IR passes or even the front-end type checking
-              early in the pipeline, and you need to focus on tracking the root cause that breaks the consistency/invariants/assumptions
-              of the IR instead of putting in band-aid fixes in the later passes or in the emit logic. The philosphy of the compiler is to
-              keep the target code emission logic as simple and direct as possible, and most of the heavy lifting code transform is done
-              in the IR passes.
-
           mcp_config: |
             {
               "mcpServers": {