<commit_before><commit_msg>Add testcase for legalizing ISD::CTTZ efficiently.  On PPC, ctlz(int) is now codegen'd as this:<commit_after>; Make sure this testcase does not use ctpop
; RUN: llvm-as < %s | llc -march=ppc32 | grep -i 'cntlzw'

declare int %llvm.cttz(int)

implementation   ; Functions:

int %bar(int %x) {
entry:
	%tmp.1 = call int %llvm.cttz( int %x ) 
	ret int %tmp.1
}
{'fraction_non_alphanumeric': 0.13020833333333334, 'fraction_numerical': 0.010416666666666666, 'mean_word_length': 4.202702702702703, 'pattern_counts': {'":': 0, '<': 4, '<?xml version=': 0, '>': 3, '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': '3685583', 'n_tokens_mistral': 158, 'n_tokens_neox': 148, 'n_words': 48}