1*88e9b373SHari Limaye; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs --version 5 2*88e9b373SHari Limaye; RUN: opt -passes="ipsccp<func-spec>" -funcspec-min-function-size=1 \ 3*88e9b373SHari Limaye; RUN: -funcspec-for-literal-constant=true \ 4*88e9b373SHari Limaye; RUN: -funcspec-min-codesize-savings=50 \ 5*88e9b373SHari Limaye; RUN: -funcspec-min-latency-savings=0 \ 6*88e9b373SHari Limaye; RUN: -S < %s | FileCheck %s 7*88e9b373SHari Limaye 8*88e9b373SHari Limaye; Verify that we are able to estimate the codesize savings arising from a block 9*88e9b373SHari Limaye; which is found dead, where the block has a predecessor that was found dead by 10*88e9b373SHari Limaye; IPSCCP. 11*88e9b373SHari Limayedefine i32 @main(i1 %flag) { 12*88e9b373SHari Limaye %notspec = call i32 @test(i1 %flag, i1 true) 13*88e9b373SHari Limaye %spec = call i32 @test(i1 true, i1 true) 14*88e9b373SHari Limaye %sum = add i32 %notspec, %spec 15*88e9b373SHari Limaye ret i32 %sum 16*88e9b373SHari Limaye} 17*88e9b373SHari Limaye 18*88e9b373SHari Limayedefine internal i32 @test(i1 %argflag, i1 %constflag) { 19*88e9b373SHari Limayeentry: 20*88e9b373SHari Limaye br i1 %argflag, label %block1, label %block3 21*88e9b373SHari Limaye 22*88e9b373SHari Limayeblock1: 23*88e9b373SHari Limaye br i1 %constflag, label %end, label %block2 24*88e9b373SHari Limaye 25*88e9b373SHari Limayeblock2: 26*88e9b373SHari Limaye br label %block3 27*88e9b373SHari Limaye 28*88e9b373SHari Limayeblock3: 29*88e9b373SHari Limaye call void @do_something() 30*88e9b373SHari Limaye call void @do_something() 31*88e9b373SHari Limaye call void @do_something() 32*88e9b373SHari Limaye call void @do_something() 33*88e9b373SHari Limaye br label %end 34*88e9b373SHari Limaye 35*88e9b373SHari Limayeend: 36*88e9b373SHari Limaye %res = phi i32 [ 0, %block1 ], [ 1, %block3] 37*88e9b373SHari Limaye ret i32 %res 38*88e9b373SHari Limaye} 39*88e9b373SHari Limaye 40*88e9b373SHari Limayedeclare void @do_something() 41*88e9b373SHari Limaye; CHECK-LABEL: define range(i32 0, 2) i32 @main( 42*88e9b373SHari Limaye; CHECK-SAME: i1 [[FLAG:%.*]]) { 43*88e9b373SHari Limaye; CHECK-NEXT: [[NOTSPEC:%.*]] = call i32 @test(i1 [[FLAG]], i1 true) 44*88e9b373SHari Limaye; CHECK-NEXT: [[SPEC:%.*]] = call i32 @test.specialized.1(i1 true, i1 true) 45*88e9b373SHari Limaye; CHECK-NEXT: [[SUM:%.*]] = add nuw nsw i32 [[NOTSPEC]], 0 46*88e9b373SHari Limaye; CHECK-NEXT: ret i32 [[SUM]] 47*88e9b373SHari Limaye; 48*88e9b373SHari Limaye; 49*88e9b373SHari Limaye; CHECK-LABEL: define internal range(i32 0, 2) i32 @test( 50*88e9b373SHari Limaye; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) { 51*88e9b373SHari Limaye; CHECK-NEXT: [[ENTRY:.*:]] 52*88e9b373SHari Limaye; CHECK-NEXT: br i1 [[ARGFLAG]], label %[[BLOCK1:.*]], label %[[BLOCK3:.*]] 53*88e9b373SHari Limaye; CHECK: [[BLOCK1]]: 54*88e9b373SHari Limaye; CHECK-NEXT: br label %[[END:.*]] 55*88e9b373SHari Limaye; CHECK: [[BLOCK3]]: 56*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 57*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 58*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 59*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 60*88e9b373SHari Limaye; CHECK-NEXT: br label %[[END]] 61*88e9b373SHari Limaye; CHECK: [[END]]: 62*88e9b373SHari Limaye; CHECK-NEXT: [[RES:%.*]] = phi i32 [ 0, %[[BLOCK1]] ], [ 1, %[[BLOCK3]] ] 63*88e9b373SHari Limaye; CHECK-NEXT: ret i32 [[RES]] 64*88e9b373SHari Limaye; 65*88e9b373SHari Limaye; 66*88e9b373SHari Limaye; CHECK-LABEL: define internal i32 @test.specialized.1( 67*88e9b373SHari Limaye; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) { 68*88e9b373SHari Limaye; CHECK-NEXT: [[ENTRY:.*:]] 69*88e9b373SHari Limaye; CHECK-NEXT: br label %[[BLOCK1:.*]] 70*88e9b373SHari Limaye; CHECK: [[BLOCK1]]: 71*88e9b373SHari Limaye; CHECK-NEXT: br label %[[END:.*]] 72*88e9b373SHari Limaye; CHECK: [[END]]: 73*88e9b373SHari Limaye; CHECK-NEXT: ret i32 poison 74*88e9b373SHari Limaye; 75