Reproducer for llvm/llvm-project#59962

Author: gergoerdi

.gitignore

@@ -0,0 +1,3 @@
+*.s
+*.o
+*.dump

Makefile

@@ -0,0 +1,23 @@
+MOD	= worduino-avr
+DUMPS	= $(MOD).ll.o.dump $(MOD).ll.s.o.dump
+
+.PHONY: all clean
+.SUFFIXES:
+
+all: $(DUMPS)
+	colordiff -u $(DUMPS) || exit 0
+
+clean:
+	rm -f $(DUMPS)
+
+%.ll.s: %.ll
+	llc-15 -march=avr -mcpu=atmega32u4 $< -filetype=asm -o $@
+
+%.s.o: %.s
+	llvm-mc-15 --arch=avr --mcpu=atmega32u4 $< -filetype=obj -o $@
+
+%.ll.o: %.ll
+	llc-15 -march=avr -mcpu=atmega32u4 $< -filetype=obj -o $@
+
+%.o.dump: %.o
+	avr-objdump -d $< | tail -n +5 > $@