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https://github.com/carbon-language/carbon-lang.git
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aa69a484eb
Adds a flag `--optimize=<mode>` that specifies what to optimize for: * `--optimize=none` turns off the optimizer as much as possible, but still respects always_inline. * `--optimize=debug` aims to be the equivalent of `-Og` / `-O1`, and provides optimizations that don't affect the ability to debug the program. This is the default. * `--optimize=size` optimizes for the size of the produced program, and aims to be the equivalent of `-Oz`. * `--optimize=speed` optimizes for the execution time of the produced program, and aims to be the equivalent of `-O3`. Following the approach taken by Clang, the optimization level feeds into both the configuration of the LLVM pass pipeline and the attributes added to function definitions generated by the frontend. Optimization is performed in a new phase, `optimize`, which runs between `lower` and `codegen`. --------- Co-authored-by: Dana Jansens <danakj@orodu.net> Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
115 lines
5.8 KiB
Plaintext
115 lines
5.8 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/constructor.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/constructor.carbon
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// ============================================================================
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// Default constructor
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// ============================================================================
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// --- default.h
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class C {
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public:
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C() : x_(8), y_(9) {}
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private:
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int x_;
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int y_;
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};
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// --- import_default.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "default.h";
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fn F() {
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let c: Cpp.C = Cpp.C.C();
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}
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// CHECK:STDOUT: ; ModuleID = 'import_default.carbon'
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// CHECK:STDOUT: source_filename = "import_default.carbon"
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// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
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// CHECK:STDOUT:
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// CHECK:STDOUT: %class.C = type { i32, i32 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: $_ZN1CC1Ev = comdat any
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// CHECK:STDOUT:
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// CHECK:STDOUT: $_ZN1CC2Ev = comdat any
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !7 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %.loc7_26.1.temp = alloca [8 x i8], align 1, !dbg !10
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc7_26.1.temp), !dbg !10
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// CHECK:STDOUT: call void @_ZN1CC1Ev.carbon_thunk(ptr %.loc7_26.1.temp), !dbg !10
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// CHECK:STDOUT: ret void, !dbg !11
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
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// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
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// CHECK:STDOUT: define dso_local void @_ZN1CC1Ev.carbon_thunk(ptr %return) #2 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %return.addr = alloca ptr, align 8
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// CHECK:STDOUT: store ptr %return, ptr %return.addr, align 8
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// CHECK:STDOUT: %0 = load ptr, ptr %return.addr, align 8
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// CHECK:STDOUT: call void @_ZN1CC1Ev(ptr nonnull align 4 dereferenceable(8) %0)
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: mustprogress noinline optnone
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// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN1CC1Ev(ptr nonnull align 4 dereferenceable(8) %this) unnamed_addr #3 comdat align 2 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %this.addr = alloca ptr, align 8
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// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8
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// CHECK:STDOUT: %this1 = load ptr, ptr %this.addr, align 8
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// CHECK:STDOUT: call void @_ZN1CC2Ev(ptr nonnull align 4 dereferenceable(8) %this1)
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: mustprogress noinline nounwind optnone
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// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN1CC2Ev(ptr nonnull align 4 dereferenceable(8) %this) unnamed_addr #4 comdat align 2 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %this.addr = alloca ptr, align 8
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// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8
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// CHECK:STDOUT: %this1 = load ptr, ptr %this.addr, align 8
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// CHECK:STDOUT: %x_ = getelementptr inbounds nuw %class.C, ptr %this1, i32 0, i32 0
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// CHECK:STDOUT: store i32 8, ptr %x_, align 4
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// CHECK:STDOUT: %y_ = getelementptr inbounds nuw %class.C, ptr %this1, i32 0, i32 1
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// CHECK:STDOUT: store i32 9, ptr %y_, align 4
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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// CHECK:STDOUT: attributes #2 = { alwaysinline mustprogress "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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// CHECK:STDOUT: attributes #3 = { mustprogress noinline optnone "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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// CHECK:STDOUT: attributes #4 = { mustprogress noinline nounwind optnone "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
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// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
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// CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
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// CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
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// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !6 = !DIFile(filename: "import_default.carbon", directory: "")
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// CHECK:STDOUT: !7 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
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// CHECK:STDOUT: !9 = !{}
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// CHECK:STDOUT: !10 = !DILocation(line: 7, column: 18, scope: !7)
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// CHECK:STDOUT: !11 = !DILocation(line: 6, column: 1, scope: !7)
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