1*3b70ee27SEhud Katz; RUN: opt < %s -loop-extract -S | FileCheck %s 2*3b70ee27SEhud Katz 3*3b70ee27SEhud Katz; This function has 2 simple loops and they should be extracted into 2 new functions. 4*3b70ee27SEhud Katzdefine void @test3() { 5*3b70ee27SEhud Katz; CHECK-LABEL: @test3( 6*3b70ee27SEhud Katz; CHECK-NEXT: entry: 7*3b70ee27SEhud Katz; CHECK-NEXT: br label %codeRepl1 8*3b70ee27SEhud Katz; CHECK: codeRepl1: 9*3b70ee27SEhud Katz; CHECK-NEXT: call void @test3.loop.0() 10*3b70ee27SEhud Katz; CHECK-NEXT: br label %loop.0.loop.1_crit_edge 11*3b70ee27SEhud Katz; CHECK: loop.0.loop.1_crit_edge: 12*3b70ee27SEhud Katz; CHECK-NEXT: br label %codeRepl 13*3b70ee27SEhud Katz; CHECK: codeRepl: 14*3b70ee27SEhud Katz; CHECK-NEXT: call void @test3.loop.1() 15*3b70ee27SEhud Katz; CHECK-NEXT: br label %exit 16*3b70ee27SEhud Katz; CHECK: exit: 17*3b70ee27SEhud Katz; CHECK-NEXT: ret void 18*3b70ee27SEhud Katz 19*3b70ee27SEhud Katzentry: 20*3b70ee27SEhud Katz br label %loop.0 21*3b70ee27SEhud Katz 22*3b70ee27SEhud Katzloop.0: ; preds = %loop.0, %entry 23*3b70ee27SEhud Katz %index.0 = phi i32 [ 10, %entry ], [ %next.0, %loop.0 ] 24*3b70ee27SEhud Katz tail call void @foo() 25*3b70ee27SEhud Katz %next.0 = add nsw i32 %index.0, -1 26*3b70ee27SEhud Katz %repeat.0 = icmp sgt i32 %index.0, 1 27*3b70ee27SEhud Katz br i1 %repeat.0, label %loop.0, label %loop.1 28*3b70ee27SEhud Katz 29*3b70ee27SEhud Katzloop.1: ; preds = %loop.0, %loop.1 30*3b70ee27SEhud Katz %index.1 = phi i32 [ %next.1, %loop.1 ], [ 10, %loop.0 ] 31*3b70ee27SEhud Katz tail call void @foo() 32*3b70ee27SEhud Katz %next.1 = add nsw i32 %index.1, -1 33*3b70ee27SEhud Katz %repeat.1 = icmp sgt i32 %index.1, 1 34*3b70ee27SEhud Katz br i1 %repeat.1, label %loop.1, label %exit 35*3b70ee27SEhud Katz 36*3b70ee27SEhud Katzexit: ; preds = %loop.1 37*3b70ee27SEhud Katz ret void 38*3b70ee27SEhud Katz} 39*3b70ee27SEhud Katz 40*3b70ee27SEhud Katzdeclare void @foo() 41*3b70ee27SEhud Katz 42*3b70ee27SEhud Katz; CHECK-LABEL: define internal void @test3.loop.1() 43*3b70ee27SEhud Katz; CHECK-NEXT: newFuncRoot: 44*3b70ee27SEhud Katz; CHECK-NEXT: br label %loop.1 45*3b70ee27SEhud Katz; CHECK: exit.exitStub: 46*3b70ee27SEhud Katz; CHECK-NEXT: ret void 47*3b70ee27SEhud Katz; CHECK: loop.1: 48*3b70ee27SEhud Katz; CHECK-NEXT: %index.1 = phi i32 [ %next.1, %loop.1.loop.1_crit_edge ], [ 10, %newFuncRoot ] 49*3b70ee27SEhud Katz; CHECK-NEXT: tail call void @foo() 50*3b70ee27SEhud Katz; CHECK-NEXT: %next.1 = add nsw i32 %index.1, -1 51*3b70ee27SEhud Katz; CHECK-NEXT: %repeat.1 = icmp sgt i32 %index.1, 1 52*3b70ee27SEhud Katz; CHECK-NEXT: br i1 %repeat.1, label %loop.1.loop.1_crit_edge, label %exit.exitStub 53*3b70ee27SEhud Katz; CHECK: loop.1.loop.1_crit_edge: 54*3b70ee27SEhud Katz; CHECK-NEXT: br label %loop.1 55*3b70ee27SEhud Katz 56*3b70ee27SEhud Katz; CHECK-LABEL: define internal void @test3.loop.0() 57*3b70ee27SEhud Katz; CHECK-NEXT: newFuncRoot: 58*3b70ee27SEhud Katz; CHECK-NEXT: br label %loop.0 59*3b70ee27SEhud Katz; CHECK: loop.0.loop.1_crit_edge.exitStub: 60*3b70ee27SEhud Katz; CHECK-NEXT: ret void 61*3b70ee27SEhud Katz; CHECK: loop.0: 62*3b70ee27SEhud Katz; CHECK-NEXT: %index.0 = phi i32 [ 10, %newFuncRoot ], [ %next.0, %loop.0.loop.0_crit_edge ] 63*3b70ee27SEhud Katz; CHECK-NEXT: tail call void @foo() 64*3b70ee27SEhud Katz; CHECK-NEXT: %next.0 = add nsw i32 %index.0, -1 65*3b70ee27SEhud Katz; CHECK-NEXT: %repeat.0 = icmp sgt i32 %index.0, 1 66*3b70ee27SEhud Katz; CHECK-NEXT: br i1 %repeat.0, label %loop.0.loop.0_crit_edge, label %loop.0.loop.1_crit_edge.exitStub 67*3b70ee27SEhud Katz; CHECK: loop.0.loop.0_crit_edge: 68*3b70ee27SEhud Katz; CHECK-NEXT: br label %loop.0 69