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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs --version 52; RUN: opt -passes="ipsccp<func-spec>" -funcspec-min-function-size=1 \3; RUN: -funcspec-for-literal-constant=true \4; RUN: -funcspec-min-codesize-savings=50 \5; RUN: -funcspec-min-latency-savings=0 \6; RUN: -S < %s | FileCheck %s7 8; Verify that we are able to estimate the codesize savings arising from a block9; which is found dead, where the block has a predecessor that was found dead by10; IPSCCP.11define i32 @main(i1 %flag) {12 %notspec = call i32 @test(i1 %flag, i1 true)13 %spec = call i32 @test(i1 true, i1 true)14 %sum = add i32 %notspec, %spec15 ret i32 %sum16}17 18define internal i32 @test(i1 %argflag, i1 %constflag) {19entry:20 br i1 %argflag, label %block1, label %block321 22block1:23 br i1 %constflag, label %end, label %block224 25block2:26 br label %block327 28block3:29 call void @do_something()30 call void @do_something()31 call void @do_something()32 call void @do_something()33 br label %end34 35end:36 %res = phi i32 [ 0, %block1 ], [ 1, %block3]37 ret i32 %res38}39 40declare void @do_something()41; CHECK-LABEL: define range(i32 0, 2) i32 @main(42; CHECK-SAME: i1 [[FLAG:%.*]]) {43; CHECK-NEXT: [[NOTSPEC:%.*]] = call i32 @test(i1 [[FLAG]], i1 true)44; CHECK-NEXT: [[SPEC:%.*]] = call i32 @test.specialized.1(i1 true, i1 true)45; CHECK-NEXT: [[SUM:%.*]] = add nuw nsw i32 [[NOTSPEC]], 046; CHECK-NEXT: ret i32 [[SUM]]47;48;49; CHECK-LABEL: define internal range(i32 0, 2) i32 @test(50; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) {51; CHECK-NEXT: [[ENTRY:.*:]]52; CHECK-NEXT: br i1 [[ARGFLAG]], label %[[BLOCK1:.*]], label %[[BLOCK3:.*]]53; CHECK: [[BLOCK1]]:54; CHECK-NEXT: br label %[[END:.*]]55; CHECK: [[BLOCK3]]:56; CHECK-NEXT: call void @do_something()57; CHECK-NEXT: call void @do_something()58; CHECK-NEXT: call void @do_something()59; CHECK-NEXT: call void @do_something()60; CHECK-NEXT: br label %[[END]]61; CHECK: [[END]]:62; CHECK-NEXT: [[RES:%.*]] = phi i32 [ 0, %[[BLOCK1]] ], [ 1, %[[BLOCK3]] ]63; CHECK-NEXT: ret i32 [[RES]]64;65;66; CHECK-LABEL: define internal i32 @test.specialized.1(67; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) {68; CHECK-NEXT: [[ENTRY:.*:]]69; CHECK-NEXT: br label %[[BLOCK1:.*]]70; CHECK: [[BLOCK1]]:71; CHECK-NEXT: br label %[[END:.*]]72; CHECK: [[END]]:73; CHECK-NEXT: ret i32 poison74;75