1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=hexagon -mcpu=hexagonv5 -hexagon-eif=0 -print-machineinstrs=if-converter %s -o /dev/null 2>&1 | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; Check that the edge weights are updated correctly after if-conversion. 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Worker; CHECK: BB#3: 5*9880d681SAndroid Build Coastguard Worker; CHECK: Successors according to CFG: BB#2({{[0-9a-fx/= ]+}}10.00%) BB#1({{[0-9a-fx/= ]+}}90.00%) 6*9880d681SAndroid Build Coastguard Worker@a = external global i32 7*9880d681SAndroid Build Coastguard Worker@d = external global i32 8*9880d681SAndroid Build Coastguard Worker 9*9880d681SAndroid Build Coastguard Worker; In the following CFG, A,B,C,D will be if-converted into a single block. 10*9880d681SAndroid Build Coastguard Worker; Check if the edge weights on edges to E and F are maintained correctly. 11*9880d681SAndroid Build Coastguard Worker; 12*9880d681SAndroid Build Coastguard Worker; A 13*9880d681SAndroid Build Coastguard Worker; / \ 14*9880d681SAndroid Build Coastguard Worker; B C 15*9880d681SAndroid Build Coastguard Worker; \ / 16*9880d681SAndroid Build Coastguard Worker; D 17*9880d681SAndroid Build Coastguard Worker; / \ 18*9880d681SAndroid Build Coastguard Worker; E F 19*9880d681SAndroid Build Coastguard Worker; 20*9880d681SAndroid Build Coastguard Workerdefine void @test1(i8 zeroext %la, i8 zeroext %lb) { 21*9880d681SAndroid Build Coastguard Workerentry: 22*9880d681SAndroid Build Coastguard Worker %cmp0 = call i1 @pred() 23*9880d681SAndroid Build Coastguard Worker br i1 %cmp0, label %if.else2, label %if.then0, !prof !1 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Workerif.else2: 26*9880d681SAndroid Build Coastguard Worker call void @bar(i32 2) 27*9880d681SAndroid Build Coastguard Worker br label %if.end2 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Workerif.end2: 30*9880d681SAndroid Build Coastguard Worker call void @foo(i32 2) 31*9880d681SAndroid Build Coastguard Worker br label %return 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Workerif.end: 34*9880d681SAndroid Build Coastguard Worker %storemerge = phi i32 [ %and, %if.else ], [ %shl, %if.then ] 35*9880d681SAndroid Build Coastguard Worker store i32 %storemerge, i32* @a, align 4 36*9880d681SAndroid Build Coastguard Worker %0 = load i32, i32* @d, align 4 37*9880d681SAndroid Build Coastguard Worker %cmp2 = call i1 @pred() 38*9880d681SAndroid Build Coastguard Worker br i1 %cmp2, label %if.end2, label %if.else2, !prof !2 39*9880d681SAndroid Build Coastguard Worker 40*9880d681SAndroid Build Coastguard Workerif.then0: 41*9880d681SAndroid Build Coastguard Worker %cmp = icmp eq i8 %la, %lb 42*9880d681SAndroid Build Coastguard Worker br i1 %cmp, label %if.then, label %if.else, !prof !1 43*9880d681SAndroid Build Coastguard Worker 44*9880d681SAndroid Build Coastguard Workerif.then: 45*9880d681SAndroid Build Coastguard Worker %conv1 = zext i8 %la to i32 46*9880d681SAndroid Build Coastguard Worker %shl = shl nuw nsw i32 %conv1, 16 47*9880d681SAndroid Build Coastguard Worker br label %if.end 48*9880d681SAndroid Build Coastguard Worker 49*9880d681SAndroid Build Coastguard Workerif.else: 50*9880d681SAndroid Build Coastguard Worker %and8 = and i8 %lb, %la 51*9880d681SAndroid Build Coastguard Worker %and = zext i8 %and8 to i32 52*9880d681SAndroid Build Coastguard Worker br label %if.end 53*9880d681SAndroid Build Coastguard Worker 54*9880d681SAndroid Build Coastguard Workerreturn: 55*9880d681SAndroid Build Coastguard Worker call void @foo(i32 2) 56*9880d681SAndroid Build Coastguard Worker ret void 57*9880d681SAndroid Build Coastguard Worker} 58*9880d681SAndroid Build Coastguard Worker 59*9880d681SAndroid Build Coastguard Workerdeclare void @foo(i32) 60*9880d681SAndroid Build Coastguard Workerdeclare void @bar(i32) 61*9880d681SAndroid Build Coastguard Workerdeclare i1 @pred() 62*9880d681SAndroid Build Coastguard Worker 63*9880d681SAndroid Build Coastguard Worker!1 = !{!"branch_weights", i32 80, i32 20} 64*9880d681SAndroid Build Coastguard Worker!2 = !{!"branch_weights", i32 10, i32 90} 65