| ; RUN: llc < %s -mtriple=thumbv7-apple-ios | |
| ; If converter was being too cute. It look for root BBs (which don't have | |
| ; successors) and use inverse depth first search to traverse the BBs. However | |
| ; that doesn't work when the CFG has infinite loops. Simply do a linear | |
| ; traversal of all BBs work just fine. | |
| ; rdar://9344645 | |
| %struct.hc = type { i32, i32, i32, i32 } | |
| define i32 @t(i32 %type) optsize { | |
| entry: | |
| br i1 undef, label %if.then, label %if.else | |
| if.then: | |
| unreachable | |
| if.else: | |
| br i1 undef, label %if.then15, label %if.else18 | |
| if.then15: | |
| unreachable | |
| if.else18: | |
| switch i32 %type, label %if.else173 [ | |
| i32 3, label %if.then115 | |
| i32 1, label %if.then102 | |
| ] | |
| if.then102: | |
| br i1 undef, label %cond.true10.i, label %t.exit | |
| cond.true10.i: | |
| br label %t.exit | |
| t.exit: | |
| unreachable | |
| if.then115: | |
| br i1 undef, label %if.else163, label %if.else145 | |
| if.else145: | |
| %call150 = call fastcc %struct.hc* @foo(%struct.hc* undef, i32 34865152) optsize | |
| br label %while.body172 | |
| if.else163: | |
| %call168 = call fastcc %struct.hc* @foo(%struct.hc* undef, i32 34078720) optsize | |
| br label %while.body172 | |
| while.body172: | |
| br label %while.body172 | |
| if.else173: | |
| ret i32 -1 | |
| } | |
| declare hidden fastcc %struct.hc* @foo(%struct.hc* nocapture, i32) nounwind optsize | |