1 ; RUN: opt < %s -analyze -block-freq | FileCheck %s 2 ; RUN: opt < %s -passes='print<block-freq>' -disable-output 2>&1 | FileCheck %s 3 4 ; CHECK-LABEL: Printing analysis {{.*}} for function 'nested_loop_with_branches' 5 ; CHECK-NEXT: block-frequency-info: nested_loop_with_branches 6 define void @nested_loop_with_branches(i32 %a) { 7 ; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]] 8 entry: 9 %v0 = call i1 @foo0(i32 %a) 10 br i1 %v0, label %exit, label %outer, !prof !0 11 12 ; CHECK-NEXT: outer: float = 12.0, 13 outer: 14 %i = phi i32 [ 0, %entry ], [ %i.next, %inner.end ], [ %i.next, %no_inner ] 15 %i.next = add i32 %i, 1 16 %do_inner = call i1 @foo1(i32 %i) 17 br i1 %do_inner, label %no_inner, label %inner, !prof !0 18 19 ; CHECK-NEXT: inner: float = 36.0, 20 inner: 21 %j = phi i32 [ 0, %outer ], [ %j.next, %inner.end ] 22 %side = call i1 @foo3(i32 %j) 23 br i1 %side, label %left, label %right, !prof !0 24 25 ; CHECK-NEXT: left: float = 9.0, 26 left: 27 %v4 = call i1 @foo4(i32 %j) 28 br label %inner.end 29 30 ; CHECK-NEXT: right: float = 27.0, 31 right: 32 %v5 = call i1 @foo5(i32 %j) 33 br label %inner.end 34 35 ; CHECK-NEXT: inner.end: float = 36.0, 36 inner.end: 37 %stay_inner = phi i1 [ %v4, %left ], [ %v5, %right ] 38 %j.next = add i32 %j, 1 39 br i1 %stay_inner, label %inner, label %outer, !prof !1 40 41 ; CHECK-NEXT: no_inner: float = 3.0, 42 no_inner: 43 %continue = call i1 @foo6(i32 %i) 44 br i1 %continue, label %outer, label %exit, !prof !1 45 46 ; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]] 47 exit: 48 ret void 49 } 50 51 declare i1 @foo0(i32) 52 declare i1 @foo1(i32) 53 declare i1 @foo2(i32) 54 declare i1 @foo3(i32) 55 declare i1 @foo4(i32) 56 declare i1 @foo5(i32) 57 declare i1 @foo6(i32) 58 59 !0 = !{!"branch_weights", i32 1, i32 3} 60 !1 = !{!"branch_weights", i32 3, i32 1} 61
