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1; RUN: llc < %s -print-after=finalize-isel -o /dev/null 2>&1 | FileCheck %s2 3; Hexagon runs passes that renumber the basic blocks, causing this test4; to fail.5; XFAIL: target=hexagon-{{.*}}6 7declare void @foo()8 9; Make sure we have the correct weight attached to each successor.10define i32 @test2(i32 %x) nounwind uwtable readnone ssp {11; CHECK-LABEL: Machine code for function test2:12entry:13 %conv = sext i32 %x to i6414 switch i64 %conv, label %return [15 i64 0, label %sw.bb16 i64 1, label %sw.bb17 i64 4, label %sw.bb18 i64 5, label %sw.bb119 i64 15, label %sw.bb20 ], !prof !021; CHECK: bb.0.entry:22; CHECK: successors: %bb.1(0x75f8ebf2), %bb.4(0x0a07140e)23; CHECK: bb.4.entry:24; CHECK: successors: %bb.2(0x60606068), %bb.5(0x1f9f9f98)25; CHECK: bb.5.entry:26; CHECK: successors: %bb.1(0x3cf3cf4b), %bb.6(0x430c30b5)27; CHECK: bb.6.entry:28; CHECK: successors: %bb.1(0x2e8ba2d7), %bb.3(0x51745d29)29 30sw.bb:31; this call will prevent simplifyCFG from optimizing the block away in ARM/AArch64.32 tail call void @foo()33 br label %return34 35sw.bb1:36 br label %return37 38return:39 %retval.0 = phi i32 [ 5, %sw.bb1 ], [ 1, %sw.bb ], [ 0, %entry ]40 ret i32 %retval.041}42 43!0 = !{!"branch_weights", i32 7, i32 6, i32 4, i32 4, i32 64, i21 1000}44 45 46declare void @g(i32)47define void @left_leaning_weight_balanced_tree(i32 %x) {48entry:49 switch i32 %x, label %return [50 i32 0, label %bb051 i32 100, label %bb152 i32 200, label %bb253 i32 300, label %bb354 i32 400, label %bb455 i32 500, label %bb556 ], !prof !157bb0: tail call void @g(i32 0) br label %return58bb1: tail call void @g(i32 1) br label %return59bb2: tail call void @g(i32 2) br label %return60bb3: tail call void @g(i32 3) br label %return61bb4: tail call void @g(i32 4) br label %return62bb5: tail call void @g(i32 5) br label %return63return: ret void64 65; Check that we set branch weights on the pivot cmp instruction correctly.66; Cases {0,100,200,300} go on the left with weight 13; cases {400,500} go on the67; right with weight 20.68;69; CHECK-LABEL: Machine code for function left_leaning_weight_balanced_tree:70; CHECK: bb.0.entry:71; CHECK-NOT: Successors72; CHECK: successors: %bb.8(0x32d2d2d3), %bb.9(0x4d2d2d2d)73}74 75!1 = !{!"branch_weights",76 ; Default:77 i32 1,78 ; Case 0, 100, 200:79 i32 10, i32 1, i32 1,80 ; Case 300, 400, 500:81 i32 1, i32 10, i32 10}82