[CI] Fix ref_llvm and ref_translator in on-push-verification-in-tree task

[wenju-he]

ref_llvm should be 19 for ocl-open-190 branch.

[Copilot]

Pull request overview

This PR fixes the LLVM and translator reference branches in the on-push-verification-in-tree workflow by dynamically parsing the LLVM version from the branch name instead of hardcoding them to "main". The workflow now extracts the LLVM version from branch names following the 'ocl-open-XXX' scheme and constructs the appropriate reference branches for both LLVM and the translator.

Key changes:

• Added dynamic LLVM version parsing from branch names
• Updated ref_llvm to use release/<version>.x format instead of hardcoded "main"
• Updated ref_translator to use llvm_release_<version>0 format instead of hardcoded "main"

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[Copilot]

There is no error handling if the branch name doesn't match the expected 'ocl-open-XXX' pattern. The grep command will silently fail and LLVM_VERSION_LONG will be empty, causing subsequent commands to produce incorrect results. Add validation to check if the pattern was found and fail with a clear error message if not, e.g., if [ -z \"$LLVM_VERSION_LONG\" ]; then echo \"Error: Could not parse LLVM version from branch name $BRANCH\"; exit 1; fi.

Suggested change

	LLVM_VERSION_LONG=$(echo $BRANCH | grep -oP '\d+') # Eg. 190 for LLVM 19
	LLVM_VERSION_LONG=$(echo $BRANCH | grep -oP '\d+') # Eg. 190 for LLVM 19
	if [ -z "$LLVM_VERSION_LONG" ]; then
	echo "Error: Could not parse LLVM version from branch name '$BRANCH'"
	exit 1
	fi

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.

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[Copilot]

The regex pattern ^([0-9]+)0$ assumes all LLVM versions end with a zero (e.g., 190 for LLVM 19), but this won't work correctly for versions like 100 (LLVM 10) which would be incorrectly parsed as LLVM 10 instead of LLVM 1. Consider validating that the version is at least two digits or adjusting the logic to handle single-digit major versions differently.

Suggested change

	if [[ "$LLVM_VERSION_PADDED" =~ ^([0-9]+)0$ ]]; then
	LLVM_VERSION_SHORT="${BASH_REMATCH[1]}"
	else
	echo "[OPENCL-CLANG] Error: Unexpected LLVM version format '$LLVM_VERSION_PADDED' from branch name '$BRANCH'"
	# Accept only two- or three-digit numbers ending in zero (e.g., 190 for LLVM 19, 100 for LLVM 10)
	if [[ "$LLVM_VERSION_PADDED" =~ ^([1-9][0-9]{1,2})0$ ]]; then
	LLVM_VERSION_SHORT="${BASH_REMATCH[1]}"
	else
	echo "[OPENCL-CLANG] Error: Unexpected LLVM version format '$LLVM_VERSION_PADDED' from branch name '$BRANCH'. Expected a two- or three-digit number ending in zero (e.g., 190 for LLVM 19, 100 for LLVM 10)."