carbon-language/carbon-lang
1
0
Fork 0
mirror of https://github.com/carbon-language/carbon-lang.git synced 2026-09-30 22:02:41 +01:00
Code Issues Packages Projects Releases 10 Wiki Activity
Files
aa69a484eb0774d1b00107bc145bf46c0f871256
carbon-lang/toolchain/lower/testdata/interop/cpp/enum.carbon
T
Richard SmithDana JansensChandler Carruth
 aa69a484eb Add support for running LLVM optimizer. (#6225) 
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>
2025-11-05 00:15:14 +00:00

281 lines
14 KiB
Plaintext
Raw Blame History

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/enum.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/enum.carbon
// --- enum_member.h
struct C {
enum E : short {
a,
b = 7,
c
};
static void F(E);
};
// --- pass_as_arg.carbon
library "[[@TEST_NAME]]";
import Cpp library "enum_member.h";
fn Pass() {
Cpp.C.F(Cpp.C.a);
Cpp.C.F(Cpp.C.a);
Cpp.C.F(Cpp.C.b);
Cpp.C.F(Cpp.C.c);
Cpp.C.F(Cpp.C.E.a);
Cpp.C.F(Cpp.C.E.b);
Cpp.C.F(Cpp.C.E.c);
}
// --- convert.carbon
library "[[@TEST_NAME]]";
import Cpp library "enum_member.h";
fn TakeI16(n: i16);
fn PassEnum() {
TakeI16(Cpp.C.b as i16);
}
fn ConvertEnumToI16(e: Cpp.C.E) {
TakeI16(e as i16);
}
fn ConvertI16ToEnum(n: i16) {
Cpp.C.F(n as Cpp.C.E);
}
// --- bitmask.h
enum Bits {
A = 1 << 0,
B = 1 << 1,
C = 1 << 2,
};
void Take(Bits b);
// --- use_bitmask.carbon
library "[[@TEST_NAME]]";
import Cpp library "bitmask.h";
// TODO: Once we support interop with C++-defined operators, we should be able
// to use `|` below rather than declaring our own builtin.
fn BitOr(a: Cpp.Bits, b: Cpp.Bits) -> Cpp.Bits = "int.or";
fn Call() {
Cpp.Take(BitOr(Cpp.A, Cpp.C));
}
// CHECK:STDOUT: ; ModuleID = 'pass_as_arg.carbon'
// CHECK:STDOUT: source_filename = "pass_as_arg.carbon"
// 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"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPass.Main() #0 !dbg !7 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc7_16.1.temp = alloca i16, align 2, !dbg !10
// CHECK:STDOUT: %.loc8_16.1.temp = alloca i16, align 2, !dbg !11
// CHECK:STDOUT: %.loc9_16.1.temp = alloca i16, align 2, !dbg !12
// CHECK:STDOUT: %.loc10_16.1.temp = alloca i16, align 2, !dbg !13
// CHECK:STDOUT: %.loc11_18.1.temp = alloca i16, align 2, !dbg !14
// CHECK:STDOUT: %.loc12_18.1.temp = alloca i16, align 2, !dbg !15
// CHECK:STDOUT: %.loc13_18.1.temp = alloca i16, align 2, !dbg !16
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc7_16.1.temp), !dbg !10
// CHECK:STDOUT: store i16 0, ptr %.loc7_16.1.temp, align 2, !dbg !10
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc7_16.1.temp), !dbg !17
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc8_16.1.temp), !dbg !11
// CHECK:STDOUT: store i16 0, ptr %.loc8_16.1.temp, align 2, !dbg !11
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc8_16.1.temp), !dbg !18
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc9_16.1.temp), !dbg !12
// CHECK:STDOUT: store i16 7, ptr %.loc9_16.1.temp, align 2, !dbg !12
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc9_16.1.temp), !dbg !19
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc10_16.1.temp), !dbg !13
// CHECK:STDOUT: store i16 8, ptr %.loc10_16.1.temp, align 2, !dbg !13
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc10_16.1.temp), !dbg !20
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc11_18.1.temp), !dbg !14
// CHECK:STDOUT: store i16 0, ptr %.loc11_18.1.temp, align 2, !dbg !14
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc11_18.1.temp), !dbg !21
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc12_18.1.temp), !dbg !15
// CHECK:STDOUT: store i16 7, ptr %.loc12_18.1.temp, align 2, !dbg !15
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc12_18.1.temp), !dbg !22
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc13_18.1.temp), !dbg !16
// CHECK:STDOUT: store i16 8, ptr %.loc13_18.1.temp, align 2, !dbg !16
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc13_18.1.temp), !dbg !23
// CHECK:STDOUT: ret void, !dbg !24
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
// CHECK:STDOUT: define dso_local void @_ZN1C1FENS_1EE.carbon_thunk(ptr %0) #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8
// CHECK:STDOUT: %1 = load ptr, ptr %.addr, align 8
// CHECK:STDOUT: %2 = load i16, ptr %1, align 2
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE(i16 signext %2)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_ZN1C1FENS_1EE(i16 signext) #3
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 6, 5, 4, 3, 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// 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" }
// CHECK:STDOUT: attributes #3 = { "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" }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
// CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
// CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "pass_as_arg.carbon", directory: "")
// CHECK:STDOUT: !7 = distinct !DISubprogram(name: "Pass", linkageName: "_CPass.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
// CHECK:STDOUT: !9 = !{}
// CHECK:STDOUT: !10 = !DILocation(line: 7, column: 11, scope: !7)
// CHECK:STDOUT: !11 = !DILocation(line: 8, column: 11, scope: !7)
// CHECK:STDOUT: !12 = !DILocation(line: 9, column: 11, scope: !7)
// CHECK:STDOUT: !13 = !DILocation(line: 10, column: 11, scope: !7)
// CHECK:STDOUT: !14 = !DILocation(line: 11, column: 11, scope: !7)
// CHECK:STDOUT: !15 = !DILocation(line: 12, column: 11, scope: !7)
// CHECK:STDOUT: !16 = !DILocation(line: 13, column: 11, scope: !7)
// CHECK:STDOUT: !17 = !DILocation(line: 7, column: 3, scope: !7)
// CHECK:STDOUT: !18 = !DILocation(line: 8, column: 3, scope: !7)
// CHECK:STDOUT: !19 = !DILocation(line: 9, column: 3, scope: !7)
// CHECK:STDOUT: !20 = !DILocation(line: 10, column: 3, scope: !7)
// CHECK:STDOUT: !21 = !DILocation(line: 11, column: 3, scope: !7)
// CHECK:STDOUT: !22 = !DILocation(line: 12, column: 3, scope: !7)
// CHECK:STDOUT: !23 = !DILocation(line: 13, column: 3, scope: !7)
// CHECK:STDOUT: !24 = !DILocation(line: 6, column: 1, scope: !7)
// CHECK:STDOUT: ; ModuleID = 'convert.carbon'
// CHECK:STDOUT: source_filename = "convert.carbon"
// 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"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CTakeI16.Main(i16)
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassEnum.Main() #0 !dbg !7 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_CTakeI16.Main(i16 7), !dbg !10
// CHECK:STDOUT: ret void, !dbg !11
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CConvertEnumToI16.Main(i16 %e) #0 !dbg !12 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_CTakeI16.Main(i16 %e), !dbg !13
// CHECK:STDOUT: ret void, !dbg !14
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CConvertI16ToEnum.Main(i16 %n) #0 !dbg !15 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc17_13.3.temp = alloca i16, align 2, !dbg !16
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc17_13.3.temp), !dbg !16
// CHECK:STDOUT: store i16 %n, ptr %.loc17_13.3.temp, align 2, !dbg !16
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE.carbon_thunk(ptr %.loc17_13.3.temp), !dbg !17
// CHECK:STDOUT: ret void, !dbg !18
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
// CHECK:STDOUT: define dso_local void @_ZN1C1FENS_1EE.carbon_thunk(ptr %0) #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8
// CHECK:STDOUT: %1 = load ptr, ptr %.addr, align 8
// CHECK:STDOUT: %2 = load i16, ptr %1, align 2
// CHECK:STDOUT: call void @_ZN1C1FENS_1EE(i16 signext %2)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_ZN1C1FENS_1EE(i16 signext) #3
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// 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" }
// CHECK:STDOUT: attributes #3 = { "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" }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
// CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
// CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "convert.carbon", directory: "")
// CHECK:STDOUT: !7 = distinct !DISubprogram(name: "PassEnum", linkageName: "_CPassEnum.Main", scope: null, file: !6, line: 8, type: !8, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
// CHECK:STDOUT: !9 = !{}
// CHECK:STDOUT: !10 = !DILocation(line: 9, column: 3, scope: !7)
// CHECK:STDOUT: !11 = !DILocation(line: 8, column: 1, scope: !7)
// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "ConvertEnumToI16", linkageName: "_CConvertEnumToI16.Main", scope: null, file: !6, line: 12, type: !8, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !13 = !DILocation(line: 13, column: 3, scope: !12)
// CHECK:STDOUT: !14 = !DILocation(line: 12, column: 1, scope: !12)
// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "ConvertI16ToEnum", linkageName: "_CConvertI16ToEnum.Main", scope: null, file: !6, line: 16, type: !8, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !16 = !DILocation(line: 17, column: 11, scope: !15)
// CHECK:STDOUT: !17 = !DILocation(line: 17, column: 3, scope: !15)
// CHECK:STDOUT: !18 = !DILocation(line: 16, column: 1, scope: !15)
// CHECK:STDOUT: ; ModuleID = 'use_bitmask.carbon'
// CHECK:STDOUT: source_filename = "use_bitmask.carbon"
// 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"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCall.Main() #0 !dbg !7 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z4Take4Bits(i32 5), !dbg !10
// CHECK:STDOUT: ret void, !dbg !11
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z4Take4Bits(i32)
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
// CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
// CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "use_bitmask.carbon", directory: "")
// CHECK:STDOUT: !7 = distinct !DISubprogram(name: "Call", linkageName: "_CCall.Main", scope: null, file: !6, line: 10, type: !8, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
// CHECK:STDOUT: !9 = !{}
// CHECK:STDOUT: !10 = !DILocation(line: 11, column: 3, scope: !7)
// CHECK:STDOUT: !11 = !DILocation(line: 10, column: 1, scope: !7)
Reference in New Issue View Git Blame Copy Permalink