mirror of
https://github.com/carbon-language/carbon-lang.git
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Initial support for C++ function pointers (#7788)
This change introduces a new inst kind `CppFunctionPointerType`, which represents an imported C++ function pointer that can be invoked from Carbon (support for forming such a pointer from a Carbon function is in a follow-up PR). This is implemented by treating the operation of invoking a function pointer in C++ as if it were a call to an `__invoke` method on the function pointer type, and extending the existing function-import logic to support importing this fictitious method. --------- Co-authored-by: Nicholas Bishop <nbishop@nbishop.net>
This commit is contained in:
Geoff RomerandNicholas Bishop authored and 
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@@ -0,0 +1,457 @@
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// 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/full.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/function/import/function_ptr.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/function/import/function_ptr.carbon
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// --- simple_callback.h
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using CallbackType = int (*)(float);
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void TakeCallback(CallbackType callback);
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auto GetCallback() -> CallbackType;
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// --- relay_fn_ptr.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "simple_callback.h";
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fn F() {
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Cpp.TakeCallback(Cpp.GetCallback());
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}
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// --- call_fn_ptr.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "simple_callback.h";
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fn F() {
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var unused x: i32 = Cpp.GetCallback()(1.0);
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}
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// --- complex_callback.h
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class C {
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public:
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C();
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C(const C&);
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C& operator=(const C&);
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private:
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int x;
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};
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using CallbackType = C (*)(C);
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void TakeComplexCallback(CallbackType callback);
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auto GetComplexCallback() -> CallbackType;
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// --- relay_complex_fn_ptr.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "complex_callback.h";
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fn F() {
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Cpp.TakeComplexCallback(Cpp.GetComplexCallback());
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}
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// --- call_complex_fn_ptr.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "complex_callback.h";
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fn F() {
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var unused x: Cpp.C = Cpp.GetComplexCallback()(Cpp.C.C());
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}
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// --- forward_decl.h
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class C;
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using CallbackType = C (*)();
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auto ReturnCallback() -> CallbackType;
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// --- mention_forward_decl.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "forward_decl.h";
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fn F() {
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var unused callback: Cpp.CallbackType = Cpp.ReturnCallback();
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}
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'relay_fn_ptr.carbon'
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// CHECK:STDOUT: source_filename = "relay_fn_ptr.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: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !13 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %GetCallback.call = call ptr @_Z11GetCallbackv(), !dbg !14
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// CHECK:STDOUT: call void @_Z12TakeCallbackPFifE(ptr %GetCallback.call), !dbg !15
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// CHECK:STDOUT: ret void, !dbg !16
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare noundef ptr @_Z11GetCallbackv() #1
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_Z12TakeCallbackPFifE(ptr noundef) #1
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "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.dbg.cu = !{!5}
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// CHECK:STDOUT: !llvm.module.flags = !{!17, !18, !19, !2, !3}
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// CHECK:STDOUT: !llvm.errno.tbaa = !{!24}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !4 = !DIFile(filename: "relay_fn_ptr.carbon", directory: "")
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// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !4, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !6 = !{null}
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// CHECK:STDOUT: !7 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !13 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !4, line: 5, type: !7, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !14 = !DILocation(line: 6, column: 20, scope: !13)
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// CHECK:STDOUT: !15 = !DILocation(line: 6, column: 3, scope: !13)
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// CHECK:STDOUT: !16 = !DILocation(line: 5, column: 1, scope: !13)
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// CHECK:STDOUT: !17 = !{i32 8, !"PIC Level", i32 2}
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// CHECK:STDOUT: !18 = !{i32 7, !"PIE Level", i32 2}
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// CHECK:STDOUT: !19 = !{i32 7, !"uwtable", i32 2}
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// CHECK:STDOUT: !20 = !{!"Simple C++ TBAA"}
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// CHECK:STDOUT: !21 = !{!"omnipotent char", !20, i64 0}
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// CHECK:STDOUT: !22 = !{!"int", !21, i64 0}
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// CHECK:STDOUT: !23 = !{!"__libc_errno", !22, i64 0}
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// CHECK:STDOUT: !24 = !{!23, !22, i64 0}
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'call_fn_ptr.carbon'
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// CHECK:STDOUT: source_filename = "call_fn_ptr.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: @float.943 = internal constant float 1.000000e+00
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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 !32 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %x.var = alloca i32, align 4, !dbg !33
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// CHECK:STDOUT: %.loc6_41.3.temp = alloca float, align 4, !dbg !35
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %x.var), !dbg !33
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// CHECK:STDOUT: %GetCallback.call = call ptr @_Z11GetCallbackv(), !dbg !34
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc6_41.3.temp), !dbg !35
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// CHECK:STDOUT: %__invoke__carbon_thunk.call = call i32 @.carbon_thunk.__(ptr %GetCallback.call, ptr @float.943), !dbg !34
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// CHECK:STDOUT: store i32 %__invoke__carbon_thunk.call, ptr %x.var, align 4, !dbg !33
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// CHECK:STDOUT: call void @"_CSelfDestruct.c73f6eecd880c71a:core.Destroy.Core"(ptr @float.943), !dbg !35
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// CHECK:STDOUT: call void @"_CSelfDestruct.f58524831c37807e:core.Destroy.Core"(ptr %x.var), !dbg !33
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// CHECK:STDOUT: ret void, !dbg !37
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare noundef ptr @_Z11GetCallbackv() #1
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
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// CHECK:STDOUT: define internal noundef i32 @.carbon_thunk.__(ptr noundef %this, ptr noundef %0) #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: %.addr = alloca ptr, align 8
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// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8, !tbaa !47
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// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !50
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// CHECK:STDOUT: %1 = load ptr, ptr %this.addr, align 8, !tbaa !47
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// CHECK:STDOUT: %2 = load ptr, ptr %.addr, align 8, !tbaa !50
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// CHECK:STDOUT: %3 = load float, ptr %2, align 4, !tbaa !51
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// CHECK:STDOUT: %call = call noundef i32 %1(float noundef %3)
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// CHECK:STDOUT: ret i32 %call
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define weak_odr void @"_CSelfDestruct.c73f6eecd880c71a:core.Destroy.Core"(ptr %self) #0 !dbg !38 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !40
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define weak_odr void @"_CSelfDestruct.f58524831c37807e:core.Destroy.Core"(ptr %self) #0 !dbg !42 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !44
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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)) #3
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; uselistorder directives
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// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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// CHECK:STDOUT: attributes #2 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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// CHECK:STDOUT: attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.dbg.cu = !{!26}
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// CHECK:STDOUT: !llvm.module.flags = !{!17, !18, !19, !2, !3}
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// CHECK:STDOUT: !llvm.errno.tbaa = !{!24}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !6 = !{null}
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// CHECK:STDOUT: !7 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !11 = !{null, !8}
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// CHECK:STDOUT: !12 = !DISubroutineType(types: !11)
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// CHECK:STDOUT: !17 = !{i32 8, !"PIC Level", i32 2}
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// CHECK:STDOUT: !18 = !{i32 7, !"PIE Level", i32 2}
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// CHECK:STDOUT: !19 = !{i32 7, !"uwtable", i32 2}
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// CHECK:STDOUT: !20 = !{!"Simple C++ TBAA"}
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// CHECK:STDOUT: !21 = !{!"omnipotent char", !20, i64 0}
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// CHECK:STDOUT: !22 = !{!"int", !21, i64 0}
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// CHECK:STDOUT: !23 = !{!"__libc_errno", !22, i64 0}
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// CHECK:STDOUT: !24 = !{!23, !22, i64 0}
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// CHECK:STDOUT: !25 = !DIFile(filename: "call_fn_ptr.carbon", directory: "")
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// CHECK:STDOUT: !26 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !25, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !27 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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// CHECK:STDOUT: !30 = !{null, !27}
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// CHECK:STDOUT: !31 = !DISubroutineType(types: !30)
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// CHECK:STDOUT: !32 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !25, line: 5, type: !7, spFlags: DISPFlagDefinition, unit: !26)
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// CHECK:STDOUT: !33 = !DILocation(line: 6, column: 3, scope: !32)
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// CHECK:STDOUT: !34 = !DILocation(line: 6, column: 23, scope: !32)
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// CHECK:STDOUT: !35 = !DILocation(line: 6, column: 41, scope: !32)
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// CHECK:STDOUT: !37 = !DILocation(line: 5, column: 1, scope: !32)
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// CHECK:STDOUT: !38 = distinct !DISubprogram(name: "SelfDestruct", linkageName: "_CSelfDestruct.c73f6eecd880c71a:core.Destroy.Core", scope: null, file: !25, line: 6, type: !12, spFlags: DISPFlagDefinition, unit: !26, retainedNodes: !41)
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// CHECK:STDOUT: !39 = !DILocalVariable(arg: 1, scope: !38, type: !8)
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// CHECK:STDOUT: !40 = !DILocation(line: 6, column: 41, scope: !38)
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// CHECK:STDOUT: !41 = !{!39}
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// CHECK:STDOUT: !42 = distinct !DISubprogram(name: "SelfDestruct", linkageName: "_CSelfDestruct.f58524831c37807e:core.Destroy.Core", scope: null, file: !25, line: 6, type: !31, spFlags: DISPFlagDefinition, unit: !26, retainedNodes: !45)
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// CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !42, type: !27)
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// CHECK:STDOUT: !44 = !DILocation(line: 6, column: 3, scope: !42)
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// CHECK:STDOUT: !45 = !{!43}
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// CHECK:STDOUT: !46 = !{!"any pointer", !21, i64 0}
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// CHECK:STDOUT: !47 = !{!46, !46, i64 0}
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// CHECK:STDOUT: !48 = !{!"float", !21, i64 0}
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// CHECK:STDOUT: !49 = !{!"p1 float", !46, i64 0}
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// CHECK:STDOUT: !50 = !{!49, !49, i64 0}
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// CHECK:STDOUT: !51 = !{!48, !48, i64 0}
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'relay_complex_fn_ptr.carbon'
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// CHECK:STDOUT: source_filename = "relay_complex_fn_ptr.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: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !54 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %GetComplexCallback.call = call ptr @_Z18GetComplexCallbackv(), !dbg !55
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// CHECK:STDOUT: call void @_Z19TakeComplexCallbackPF1CS_E(ptr %GetComplexCallback.call), !dbg !56
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// CHECK:STDOUT: ret void, !dbg !57
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare noundef ptr @_Z18GetComplexCallbackv() #1
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_Z19TakeComplexCallbackPF1CS_E(ptr noundef) #1
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "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.dbg.cu = !{!53}
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// CHECK:STDOUT: !llvm.module.flags = !{!17, !18, !19, !2, !3}
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// CHECK:STDOUT: !llvm.errno.tbaa = !{!24}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !6 = !{null}
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// CHECK:STDOUT: !7 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !17 = !{i32 8, !"PIC Level", i32 2}
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// CHECK:STDOUT: !18 = !{i32 7, !"PIE Level", i32 2}
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// CHECK:STDOUT: !19 = !{i32 7, !"uwtable", i32 2}
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// CHECK:STDOUT: !20 = !{!"Simple C++ TBAA"}
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// CHECK:STDOUT: !21 = !{!"omnipotent char", !20, i64 0}
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// CHECK:STDOUT: !22 = !{!"int", !21, i64 0}
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// CHECK:STDOUT: !23 = !{!"__libc_errno", !22, i64 0}
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// CHECK:STDOUT: !24 = !{!23, !22, i64 0}
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// CHECK:STDOUT: !52 = !DIFile(filename: "relay_complex_fn_ptr.carbon", directory: "")
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// CHECK:STDOUT: !53 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !52, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !54 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !52, line: 5, type: !7, spFlags: DISPFlagDefinition, unit: !53)
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// CHECK:STDOUT: !55 = !DILocation(line: 6, column: 27, scope: !54)
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// CHECK:STDOUT: !56 = !DILocation(line: 6, column: 3, scope: !54)
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// CHECK:STDOUT: !57 = !DILocation(line: 5, column: 1, scope: !54)
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; ---
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||||
// CHECK:STDOUT: ; ModuleID = 'call_complex_fn_ptr.carbon'
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// CHECK:STDOUT: source_filename = "call_complex_fn_ptr.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"
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||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: %class.C = type { i32 }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !62 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %x.var = alloca [4 x i8], align 4, !dbg !63
|
||||
// CHECK:STDOUT: %.loc6_58.1.temp = alloca [4 x i8], align 4, !dbg !65
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %x.var), !dbg !63
|
||||
// CHECK:STDOUT: %GetComplexCallback.call = call ptr @_Z18GetComplexCallbackv(), !dbg !64
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc6_58.1.temp), !dbg !65
|
||||
// CHECK:STDOUT: call void @_ZN1CC1Ev.carbon_thunk.(ptr %.loc6_58.1.temp), !dbg !65
|
||||
// CHECK:STDOUT: call void @.carbon_thunk.__(ptr %GetComplexCallback.call, ptr %.loc6_58.1.temp, ptr %x.var), !dbg !64
|
||||
// CHECK:STDOUT: call void @"_CSelfDestruct.417eccf5eb8addbd:core.Destroy.Core"(ptr %.loc6_58.1.temp), !dbg !65
|
||||
// CHECK:STDOUT: call void @"_CSelfDestruct.417eccf5eb8addbd:core.Destroy.Core"(ptr %x.var), !dbg !63
|
||||
// CHECK:STDOUT: ret void, !dbg !67
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: declare noundef ptr @_Z18GetComplexCallbackv() #1
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
|
||||
// CHECK:STDOUT: define internal void @_ZN1CC1Ev.carbon_thunk.(ptr noundef %return) #2 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %return.addr = alloca ptr, align 8
|
||||
// CHECK:STDOUT: store ptr %return, ptr %return.addr, align 8, !tbaa !73
|
||||
// CHECK:STDOUT: %0 = load ptr, ptr %return.addr, align 8, !tbaa !73
|
||||
// CHECK:STDOUT: call void @_ZN1CC1Ev(ptr noundef nonnull align 4 dereferenceable(4) %0)
|
||||
// CHECK:STDOUT: ret void
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
|
||||
// CHECK:STDOUT: define internal void @.carbon_thunk.__(ptr noundef %this, ptr noundef %0, ptr noundef %return) #2 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %this.addr = alloca ptr, align 8
|
||||
// CHECK:STDOUT: %.addr = alloca ptr, align 8
|
||||
// CHECK:STDOUT: %return.addr = alloca ptr, align 8
|
||||
// CHECK:STDOUT: %agg.tmp = alloca %class.C, align 4
|
||||
// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8, !tbaa !47
|
||||
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !73
|
||||
// CHECK:STDOUT: store ptr %return, ptr %return.addr, align 8, !tbaa !73
|
||||
// CHECK:STDOUT: %1 = load ptr, ptr %return.addr, align 8, !tbaa !73
|
||||
// CHECK:STDOUT: %2 = load ptr, ptr %this.addr, align 8, !tbaa !47
|
||||
// CHECK:STDOUT: %3 = load ptr, ptr %.addr, align 8, !tbaa !73
|
||||
// CHECK:STDOUT: call void @_ZN1CC1ERKS_(ptr noundef nonnull align 4 dereferenceable(4) %agg.tmp, ptr noundef nonnull align 4 dereferenceable(4) %3)
|
||||
// CHECK:STDOUT: call void %2(ptr dead_on_unwind writable sret(%class.C) align 4 %1, ptr nofreeobj noundef align 4 dead_on_return dereferenceable(4) %agg.tmp)
|
||||
// CHECK:STDOUT: ret void
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define weak_odr void @"_CSelfDestruct.417eccf5eb8addbd:core.Destroy.Core"(ptr %self) #0 !dbg !68 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: ret void, !dbg !70
|
||||
// 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)) #3
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: declare void @_ZN1CC1Ev(ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: declare void @_ZN1CC1ERKS_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: ; uselistorder directives
|
||||
// CHECK:STDOUT: uselistorder ptr @"_CSelfDestruct.417eccf5eb8addbd:core.Destroy.Core", { 1, 0 }
|
||||
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: attributes #0 = { nounwind }
|
||||
// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
|
||||
// CHECK:STDOUT: attributes #2 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
|
||||
// CHECK:STDOUT: attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: !llvm.dbg.cu = !{!59}
|
||||
// CHECK:STDOUT: !llvm.module.flags = !{!17, !18, !19, !2, !3}
|
||||
// CHECK:STDOUT: !llvm.errno.tbaa = !{!24}
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
|
||||
// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
// CHECK:STDOUT: !6 = !{null}
|
||||
// CHECK:STDOUT: !7 = !DISubroutineType(types: !6)
|
||||
// CHECK:STDOUT: !8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
|
||||
// CHECK:STDOUT: !11 = !{null, !8}
|
||||
// CHECK:STDOUT: !12 = !DISubroutineType(types: !11)
|
||||
// CHECK:STDOUT: !17 = !{i32 8, !"PIC Level", i32 2}
|
||||
// CHECK:STDOUT: !18 = !{i32 7, !"PIE Level", i32 2}
|
||||
// CHECK:STDOUT: !19 = !{i32 7, !"uwtable", i32 2}
|
||||
// CHECK:STDOUT: !20 = !{!"Simple C++ TBAA"}
|
||||
// CHECK:STDOUT: !21 = !{!"omnipotent char", !20, i64 0}
|
||||
// CHECK:STDOUT: !22 = !{!"int", !21, i64 0}
|
||||
// CHECK:STDOUT: !23 = !{!"__libc_errno", !22, i64 0}
|
||||
// CHECK:STDOUT: !24 = !{!23, !22, i64 0}
|
||||
// CHECK:STDOUT: !46 = !{!"any pointer", !21, i64 0}
|
||||
// CHECK:STDOUT: !47 = !{!46, !46, i64 0}
|
||||
// CHECK:STDOUT: !58 = !DIFile(filename: "call_complex_fn_ptr.carbon", directory: "")
|
||||
// CHECK:STDOUT: !59 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !58, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
|
||||
// CHECK:STDOUT: !62 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !58, line: 5, type: !7, spFlags: DISPFlagDefinition, unit: !59)
|
||||
// CHECK:STDOUT: !63 = !DILocation(line: 6, column: 3, scope: !62)
|
||||
// CHECK:STDOUT: !64 = !DILocation(line: 6, column: 25, scope: !62)
|
||||
// CHECK:STDOUT: !65 = !DILocation(line: 6, column: 50, scope: !62)
|
||||
// CHECK:STDOUT: !67 = !DILocation(line: 5, column: 1, scope: !62)
|
||||
// CHECK:STDOUT: !68 = distinct !DISubprogram(name: "SelfDestruct", linkageName: "_CSelfDestruct.417eccf5eb8addbd:core.Destroy.Core", scope: null, file: !58, line: 6, type: !12, spFlags: DISPFlagDefinition, unit: !59, retainedNodes: !71)
|
||||
// CHECK:STDOUT: !69 = !DILocalVariable(arg: 1, scope: !68, type: !8)
|
||||
// CHECK:STDOUT: !70 = !DILocation(line: 6, column: 50, scope: !68)
|
||||
// CHECK:STDOUT: !71 = !{!69}
|
||||
// CHECK:STDOUT: !72 = !{!"p1 _ZTS1C", !46, i64 0}
|
||||
// CHECK:STDOUT: !73 = !{!72, !72, i64 0}
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: ; ---
|
||||
// CHECK:STDOUT: ; ModuleID = 'mention_forward_decl.carbon'
|
||||
// CHECK:STDOUT: source_filename = "mention_forward_decl.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 @_CF.Main() #0 !dbg !77 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %callback.var = alloca ptr, align 8, !dbg !78
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %callback.var), !dbg !78
|
||||
// CHECK:STDOUT: %ReturnCallback.call = call ptr @_Z14ReturnCallbackv(), !dbg !79
|
||||
// CHECK:STDOUT: store ptr %ReturnCallback.call, ptr %callback.var, align 8, !dbg !78
|
||||
// CHECK:STDOUT: call void @"_CSelfDestruct.659d177172b60c17:core.Destroy.Core"(ptr %callback.var), !dbg !78
|
||||
// CHECK:STDOUT: ret void, !dbg !81
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: declare noundef ptr @_Z14ReturnCallbackv() #1
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define weak_odr void @"_CSelfDestruct.659d177172b60c17:core.Destroy.Core"(ptr %self) #0 !dbg !82 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: ret void, !dbg !84
|
||||
// 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)) #2
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: attributes #0 = { nounwind }
|
||||
// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
|
||||
// CHECK:STDOUT: attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: !llvm.dbg.cu = !{!76}
|
||||
// CHECK:STDOUT: !llvm.module.flags = !{!17, !18, !19, !2, !3}
|
||||
// CHECK:STDOUT: !llvm.errno.tbaa = !{!24}
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
|
||||
// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
// CHECK:STDOUT: !6 = !{null}
|
||||
// CHECK:STDOUT: !7 = !DISubroutineType(types: !6)
|
||||
// CHECK:STDOUT: !8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
|
||||
// CHECK:STDOUT: !11 = !{null, !8}
|
||||
// CHECK:STDOUT: !12 = !DISubroutineType(types: !11)
|
||||
// CHECK:STDOUT: !17 = !{i32 8, !"PIC Level", i32 2}
|
||||
// CHECK:STDOUT: !18 = !{i32 7, !"PIE Level", i32 2}
|
||||
// CHECK:STDOUT: !19 = !{i32 7, !"uwtable", i32 2}
|
||||
// CHECK:STDOUT: !20 = !{!"Simple C++ TBAA"}
|
||||
// CHECK:STDOUT: !21 = !{!"omnipotent char", !20, i64 0}
|
||||
// CHECK:STDOUT: !22 = !{!"int", !21, i64 0}
|
||||
// CHECK:STDOUT: !23 = !{!"__libc_errno", !22, i64 0}
|
||||
// CHECK:STDOUT: !24 = !{!23, !22, i64 0}
|
||||
// CHECK:STDOUT: !75 = !DIFile(filename: "mention_forward_decl.carbon", directory: "")
|
||||
// CHECK:STDOUT: !76 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !75, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
|
||||
// CHECK:STDOUT: !77 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !75, line: 5, type: !7, spFlags: DISPFlagDefinition, unit: !76)
|
||||
// CHECK:STDOUT: !78 = !DILocation(line: 6, column: 3, scope: !77)
|
||||
// CHECK:STDOUT: !79 = !DILocation(line: 6, column: 43, scope: !77)
|
||||
// CHECK:STDOUT: !81 = !DILocation(line: 5, column: 1, scope: !77)
|
||||
// CHECK:STDOUT: !82 = distinct !DISubprogram(name: "SelfDestruct", linkageName: "_CSelfDestruct.659d177172b60c17:core.Destroy.Core", scope: null, file: !75, line: 6, type: !12, spFlags: DISPFlagDefinition, unit: !76, retainedNodes: !85)
|
||||
// CHECK:STDOUT: !83 = !DILocalVariable(arg: 1, scope: !82, type: !8)
|
||||
// CHECK:STDOUT: !84 = !DILocation(line: 6, column: 3, scope: !82)
|
||||
// CHECK:STDOUT: !85 = !{!83}
|
||||
// CHECK:STDOUT:
|
||||
Reference in new issue
Block a user