1 ; This testcase can be simplified by "realizing" that alloca can never return 2 ; null. 3 ; RUN: opt < %s -instcombine -simplifycfg -S | FileCheck %s 4 ; CHECK-NOT: br 5 6 declare i32 @bitmap_clear(...) 7 8 define i32 @oof() { 9 entry: 10 %live_head = alloca i32 ; <i32*> [#uses=2] 11 %tmp.1 = icmp ne i32* %live_head, null ; <i1> [#uses=1] 12 br i1 %tmp.1, label %then, label %UnifiedExitNode 13 14 then: ; preds = %entry 15 %tmp.4 = call i32 (...) @bitmap_clear( i32* %live_head ) ; <i32> [#uses=0] 16 br label %UnifiedExitNode 17 18 UnifiedExitNode: ; preds = %then, %entry 19 ret i32 0 20 } 21 22
