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67 lines
2.2 KiB
67 lines
2.2 KiB
4 months ago
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; RUN: opt < %s -loop-unswitch -disable-output
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; PR1559
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target triple = "i686-pc-linux-gnu"
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%struct.re_pattern_buffer = type { i8*, i32, i32, i32, i8*, i8*, i32, i8 }
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define fastcc i32 @byte_regex_compile(i8* %pattern, i32 %size, i32 %syntax, %struct.re_pattern_buffer* %bufp) {
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entry:
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br i1 false, label %bb147, label %cond_next123
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cond_next123: ; preds = %entry
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ret i32 0
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bb147: ; preds = %entry
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switch i32 0, label %normal_char [
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i32 91, label %bb1734
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i32 92, label %bb5700
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]
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bb1734: ; preds = %bb147
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br label %bb1855.outer.outer
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cond_true1831: ; preds = %bb1855.outer
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br i1 %tmp1837, label %cond_next1844, label %cond_true1840
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cond_true1840: ; preds = %cond_true1831
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ret i32 0
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cond_next1844: ; preds = %cond_true1831
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br i1 false, label %bb1855.outer, label %cond_true1849
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cond_true1849: ; preds = %cond_next1844
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br label %bb1855.outer.outer
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bb1855.outer.outer: ; preds = %cond_true1849, %bb1734
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%b.10.ph.ph = phi i8* [ null, %cond_true1849 ], [ null, %bb1734 ] ; <i8*> [#uses=1]
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br label %bb1855.outer
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bb1855.outer: ; preds = %bb1855.outer.outer, %cond_next1844
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%b.10.ph = phi i8* [ null, %cond_next1844 ], [ %b.10.ph.ph, %bb1855.outer.outer ] ; <i8*> [#uses=1]
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%tmp1837 = icmp eq i8* null, null ; <i1> [#uses=2]
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br i1 false, label %cond_true1831, label %cond_next1915
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cond_next1915: ; preds = %cond_next1961, %bb1855.outer
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store i8* null, i8** null
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br i1 %tmp1837, label %cond_next1929, label %cond_true1923
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cond_true1923: ; preds = %cond_next1915
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ret i32 0
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cond_next1929: ; preds = %cond_next1915
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br i1 false, label %cond_next1961, label %cond_next2009
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cond_next1961: ; preds = %cond_next1929
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%tmp1992 = getelementptr i8, i8* %b.10.ph, i32 0 ; <i8*> [#uses=0]
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br label %cond_next1915
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cond_next2009: ; preds = %cond_next1929
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ret i32 0
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bb5700: ; preds = %bb147
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ret i32 0
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normal_char: ; preds = %bb147
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ret i32 0
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}
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