| ; 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 |
| |
