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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 branch9; based on a binary operator, where one operand is already found constant by10; IPSCCP.11define i32 @main(i1 %flag) {12 %notspec = call i32 @test(i1 %flag, i1 false)13 %spec = call i32 @test(i1 false, i1 false)14 %sum = add i32 %notspec, %spec15 ret i32 %sum16}17 18define internal i32 @test(i1 %argflag, i1 %constflag) {19entry:20 %cond = or i1 %argflag, %constflag21 br i1 %cond, label %if.then, label %if.end22 23if.then:24 call void @do_something()25 call void @do_something()26 call void @do_something()27 call void @do_something()28 br label %if.end29 30if.end:31 %res = phi i32 [ 0, %entry ], [ 1, %if.then]32 ret i32 %res33}34 35declare void @do_something()36; CHECK-LABEL: define range(i32 0, 2) i32 @main(37; CHECK-SAME: i1 [[FLAG:%.*]]) {38; CHECK-NEXT: [[NOTSPEC:%.*]] = call i32 @test(i1 [[FLAG]], i1 false)39; CHECK-NEXT: [[SPEC:%.*]] = call i32 @test.specialized.1(i1 false, i1 false)40; CHECK-NEXT: [[SUM:%.*]] = add nuw nsw i32 [[NOTSPEC]], 041; CHECK-NEXT: ret i32 [[SUM]]42;43;44; CHECK-LABEL: define internal range(i32 0, 2) i32 @test(45; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) {46; CHECK-NEXT: [[ENTRY:.*]]:47; CHECK-NEXT: [[COND:%.*]] = or i1 [[ARGFLAG]], false48; CHECK-NEXT: br i1 [[COND]], label %[[IF_THEN:.*]], label %[[IF_END:.*]]49; CHECK: [[IF_THEN]]:50; CHECK-NEXT: call void @do_something()51; CHECK-NEXT: call void @do_something()52; CHECK-NEXT: call void @do_something()53; CHECK-NEXT: call void @do_something()54; CHECK-NEXT: br label %[[IF_END]]55; CHECK: [[IF_END]]:56; CHECK-NEXT: [[RES:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ 1, %[[IF_THEN]] ]57; CHECK-NEXT: ret i32 [[RES]]58;59;60; CHECK-LABEL: define internal i32 @test.specialized.1(61; CHECK-SAME: i1 [[ARGFLAG:%.*]], i1 [[CONSTFLAG:%.*]]) {62; CHECK-NEXT: [[ENTRY:.*:]]63; CHECK-NEXT: br label %[[IF_END:.*]]64; CHECK: [[IF_END]]:65; CHECK-NEXT: ret i32 poison66;67