<commit_before><commit_msg>Add a test case for PR1271 (necessary, but not sufficient).<commit_after>; PR1271
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep and
define i1 @test(i32 %tmp13) {
entry:
	%tmp14 = shl i32 %tmp13, 12		; <i32> [#uses=1]
	%tmp15 = lshr i32 %tmp14, 12		; <i32> [#uses=1]
	%res = icmp ne i32 %tmp15, 0		; <i1>:3 [#uses=1]
        ret i1 %res
}
{'fraction_non_alphanumeric': 0.168, 'fraction_numerical': 0.11733333333333333, 'mean_word_length': 3.7, 'pattern_counts': {'":': 0, '<': 7, '<?xml version=': 0, '>': 6, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '526408', 'n_tokens_mistral': 191, 'n_tokens_neox': 165, 'n_words': 49}