#!/bin/sh
# Export the TMS34010 fork delta as a patch series against the pinned tag.
set -eu
SRC=${LLVM_SRC:-build/llvm-src}
TAG=llvmorg-23.1.5
OUT=${1:-patches/llvm}
mkdir -p "$OUT"

# git diff ignores untracked files; make new files visible to it.
git -C "$SRC" add -N   llvm/lib/Target/TMS34010   clang/lib/Basic/Targets/TMS34010.h   clang/lib/Basic/Targets/TMS34010.cpp   clang/test/CodeGen/TMS34010 2>/dev/null || true

git -C "$SRC" diff "$TAG" -- \
  llvm/include/llvm/TargetParser llvm/lib/TargetParser \
  > "$OUT/0001-triple.patch"
git -C "$SRC" diff "$TAG" -- \
  llvm/lib/Target/TMS34010 llvm/lib/Target/CMakeLists.txt llvm/CMakeLists.txt \
  > "$OUT/0002-target-skeleton.patch"
git -C "$SRC" diff "$TAG" -- \
  clang/lib/Basic/Targets clang/lib/Basic/Targets.cpp \
  clang/lib/Basic/CMakeLists.txt clang/test/CodeGen/TMS34010 \
  > "$OUT/0003-clang-target.patch"
git -C "$SRC" diff "$TAG" -- \
  clang/include/clang/Basic/TargetInfo.h clang/lib/CodeGen/CGExprScalar.cpp \
  > "$OUT/0004-clang-ptrdiff.patch"

find "$OUT" -type f -empty -delete