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 branch 9*88e9b373SHari Limaye; based on a binary operator, where one operand is already found constant by 10*88e9b373SHari Limaye; IPSCCP. 11*88e9b373SHari Limayedefine i32 @main(i1 %flag) { 12*88e9b373SHari Limaye %notspec = call i32 @test(i1 %flag, i1 false) 13*88e9b373SHari Limaye %spec = call i32 @test(i1 false, i1 false) 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 %cond = or i1 %argflag, %constflag 21*88e9b373SHari Limaye br i1 %cond, label %if.then, label %if.end 22*88e9b373SHari Limaye 23*88e9b373SHari Limayeif.then: 24*88e9b373SHari Limaye call void @do_something() 25*88e9b373SHari Limaye call void @do_something() 26*88e9b373SHari Limaye call void @do_something() 27*88e9b373SHari Limaye call void @do_something() 28*88e9b373SHari Limaye br label %if.end 29*88e9b373SHari Limaye 30*88e9b373SHari Limayeif.end: 31*88e9b373SHari Limaye %res = phi i32 [ 0, %entry ], [ 1, %if.then] 32*88e9b373SHari Limaye ret i32 %res 33*88e9b373SHari Limaye} 34*88e9b373SHari Limaye 35*88e9b373SHari Limayedeclare void @do_something() 36*88e9b373SHari Limaye; CHECK-LABEL: define range(i32 0, 2) i32 @main( 37*88e9b373SHari Limaye; CHECK-SAME: i1 [[FLAG:%.*]]) { 38*88e9b373SHari Limaye; CHECK-NEXT: [[NOTSPEC:%.*]] = call i32 @test(i1 [[FLAG]], i1 false) 39*88e9b373SHari Limaye; CHECK-NEXT: [[SPEC:%.*]] = call i32 @test.specialized.1(i1 false, i1 false) 40*88e9b373SHari Limaye; CHECK-NEXT: [[SUM:%.*]] = add nuw nsw i32 [[NOTSPEC]], 0 41*88e9b373SHari Limaye; CHECK-NEXT: ret i32 [[SUM]] 42*88e9b373SHari Limaye; 43*88e9b373SHari Limaye; 44*88e9b373SHari Limaye; CHECK-LABEL: define internal range(i32 0, 2) i32 @test( 45*88e9b373SHari Limaye; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) { 46*88e9b373SHari Limaye; CHECK-NEXT: [[ENTRY:.*]]: 47*88e9b373SHari Limaye; CHECK-NEXT: [[COND:%.*]] = or i1 [[ARGFLAG]], false 48*88e9b373SHari Limaye; CHECK-NEXT: br i1 [[COND]], label %[[IF_THEN:.*]], label %[[IF_END:.*]] 49*88e9b373SHari Limaye; CHECK: [[IF_THEN]]: 50*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 51*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 52*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 53*88e9b373SHari Limaye; CHECK-NEXT: call void @do_something() 54*88e9b373SHari Limaye; CHECK-NEXT: br label %[[IF_END]] 55*88e9b373SHari Limaye; CHECK: [[IF_END]]: 56*88e9b373SHari Limaye; CHECK-NEXT: [[RES:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ 1, %[[IF_THEN]] ] 57*88e9b373SHari Limaye; CHECK-NEXT: ret i32 [[RES]] 58*88e9b373SHari Limaye; 59*88e9b373SHari Limaye; 60*88e9b373SHari Limaye; CHECK-LABEL: define internal i32 @test.specialized.1( 61*88e9b373SHari Limaye; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) { 62*88e9b373SHari Limaye; CHECK-NEXT: [[ENTRY:.*:]] 63*88e9b373SHari Limaye; CHECK-NEXT: br label %[[IF_END:.*]] 64*88e9b373SHari Limaye; CHECK: [[IF_END]]: 65*88e9b373SHari Limaye; CHECK-NEXT: ret i32 poison 66*88e9b373SHari Limaye; 67