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