| ; 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 | |
| } |