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carbon-lang/toolchain/lower/testdata/function/generic/call_specific_in_class.carbon
T
Jon Ross-Perkins 7ccc1e0144 Expand naming for impls and functions (#5808) 
Change impls from `<interface>.impl` to `<self>.as.<interface>.impl`,
and *member* functions to `<parent scope>.<fn>` (non-member functions
exclude their parent scope). Stop special-casing builtin functions,
given the new naming scheme.

The purpose of this is to make it clearer when a member function is
being accessed and, if so, which member function. In particular, we
often access interface `Op` functions. The builtin function
special-casing was intended to help with that, but we still have lots of
`Op` functions. This particular approach should make the interactions
clearer.

This changes up queueing of block IDs a little because, in particular,
we need to process bodies of entities only after constants finish
processing. But, it should also result in less memory usage during
processing because it means we have less on the insts stack at any given
time, since we track a block rather than all instructions contained by
the block.
2025-07-21 18:45:07 +00:00

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// 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/primitives.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/function/generic/call_specific_in_class.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/generic/call_specific_in_class.carbon
// Builds on `call_basic.carbon`. Checks different specific definitions are
// emitted for a generic function defined inside a class, when calling that
// generic function for an object, from a generic context.
// The specifics with a pointer type could be deduplicated here.
class C {
fn Cfn[self: Self, T:! type](x: T) -> T {
return x;
}
}
fn G[T:! type](x: T) -> T {
var c: C;
return c.Cfn(x);
}
fn F[T:! type](x: T) -> T {
return G(x);
}
fn M() {
var ptr_i32 : i32*;
F(ptr_i32);
var ptr_f64 : f64*;
F(ptr_f64);
var ptr_i8 : i8*;
F(ptr_i8);
var var_i32: i32 = 0;
F(var_i32);
var var_f64: f64 = 0.0;
F(var_f64);
var c: C;
F(C);
}
// CHECK:STDOUT: ; ModuleID = 'call_specific_in_class.carbon'
// CHECK:STDOUT: source_filename = "call_specific_in_class.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: %type = type {}
// CHECK:STDOUT:
// CHECK:STDOUT: define void @_CM.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %ptr_i32.var = alloca ptr, align 8, !dbg !7
// CHECK:STDOUT: %ptr_f64.var = alloca ptr, align 8, !dbg !8
// CHECK:STDOUT: %ptr_i8.var = alloca ptr, align 8, !dbg !9
// CHECK:STDOUT: %var_i32.var = alloca i32, align 4, !dbg !10
// CHECK:STDOUT: %var_f64.var = alloca double, align 8, !dbg !11
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !12
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 8, ptr %ptr_i32.var), !dbg !7
// CHECK:STDOUT: %.loc34 = load ptr, ptr %ptr_i32.var, align 8, !dbg !13
// CHECK:STDOUT: %F.call.loc34 = call ptr @_CF.Main.e8193710fd35b608(ptr %.loc34), !dbg !14
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 8, ptr %ptr_f64.var), !dbg !8
// CHECK:STDOUT: %.loc36 = load ptr, ptr %ptr_f64.var, align 8, !dbg !15
// CHECK:STDOUT: %F.call.loc36 = call ptr @_CF.Main.e8193710fd35b608(ptr %.loc36), !dbg !16
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 8, ptr %ptr_i8.var), !dbg !9
// CHECK:STDOUT: %.loc38 = load ptr, ptr %ptr_i8.var, align 8, !dbg !17
// CHECK:STDOUT: %F.call.loc38 = call ptr @_CF.Main.e8193710fd35b608(ptr %.loc38), !dbg !18
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %var_i32.var), !dbg !10
// CHECK:STDOUT: store i32 0, ptr %var_i32.var, align 4, !dbg !10
// CHECK:STDOUT: %.loc40 = load i32, ptr %var_i32.var, align 4, !dbg !19
// CHECK:STDOUT: %F.call.loc40 = call i32 @_CF.Main.b88d1103f417c6d4(i32 %.loc40), !dbg !20
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 8, ptr %var_f64.var), !dbg !11
// CHECK:STDOUT: store double 0.000000e+00, ptr %var_f64.var, align 8, !dbg !11
// CHECK:STDOUT: %.loc42 = load double, ptr %var_f64.var, align 8, !dbg !21
// CHECK:STDOUT: %F.call.loc42 = call double @_CF.Main.66be507887ceee78(double %.loc42), !dbg !22
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 0, ptr %c.var), !dbg !12
// CHECK:STDOUT: %F.call.loc44 = call %type @_CF.Main.5754c7a55c7cbe4a(%type zeroinitializer), !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(i64 immarg, ptr captures(none)) #0
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr ptr @_CF.Main.e8193710fd35b608(ptr %x) !dbg !25 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %G.call = call ptr @_CG.Main.e8193710fd35b608(ptr %x), !dbg !26
// CHECK:STDOUT: ret ptr %G.call, !dbg !27
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i32 @_CF.Main.b88d1103f417c6d4(i32 %x) !dbg !28 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %G.call = call i32 @_CG.Main.b88d1103f417c6d4(i32 %x), !dbg !29
// CHECK:STDOUT: ret i32 %G.call, !dbg !30
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr double @_CF.Main.66be507887ceee78(double %x) !dbg !31 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %G.call = call double @_CG.Main.66be507887ceee78(double %x), !dbg !32
// CHECK:STDOUT: ret double %G.call, !dbg !33
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr %type @_CF.Main.5754c7a55c7cbe4a(%type %x) !dbg !34 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %G.call = call %type @_CG.Main.5754c7a55c7cbe4a(%type %x), !dbg !35
// CHECK:STDOUT: ret %type %G.call, !dbg !36
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr ptr @_CG.Main.e8193710fd35b608(ptr %x) !dbg !37 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !38
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 0, ptr %c.var), !dbg !38
// CHECK:STDOUT: %C.Cfn.call = call ptr @_CCfn.C.Main.e8193710fd35b608(ptr %c.var, ptr %x), !dbg !39
// CHECK:STDOUT: ret ptr %C.Cfn.call, !dbg !40
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.b88d1103f417c6d4(i32 %x) !dbg !41 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !42
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 0, ptr %c.var), !dbg !42
// CHECK:STDOUT: %C.Cfn.call = call i32 @_CCfn.C.Main.b88d1103f417c6d4(ptr %c.var, i32 %x), !dbg !43
// CHECK:STDOUT: ret i32 %C.Cfn.call, !dbg !44
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr double @_CG.Main.66be507887ceee78(double %x) !dbg !45 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !46
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 0, ptr %c.var), !dbg !46
// CHECK:STDOUT: %C.Cfn.call = call double @_CCfn.C.Main.66be507887ceee78(ptr %c.var, double %x), !dbg !47
// CHECK:STDOUT: ret double %C.Cfn.call, !dbg !48
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr %type @_CG.Main.5754c7a55c7cbe4a(%type %x) !dbg !49 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !50
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 0, ptr %c.var), !dbg !50
// CHECK:STDOUT: %C.Cfn.call = call %type @_CCfn.C.Main.5754c7a55c7cbe4a(ptr %c.var, %type %x), !dbg !51
// CHECK:STDOUT: ret %type %C.Cfn.call, !dbg !52
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr ptr @_CCfn.C.Main.e8193710fd35b608(ptr %self, ptr %x) !dbg !53 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret ptr %x, !dbg !54
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i32 @_CCfn.C.Main.b88d1103f417c6d4(ptr %self, i32 %x) !dbg !55 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret i32 %x, !dbg !56
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr double @_CCfn.C.Main.66be507887ceee78(ptr %self, double %x) !dbg !57 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret double %x, !dbg !58
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr %type @_CCfn.C.Main.5754c7a55c7cbe4a(ptr %self, %type %x) !dbg !59 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret %type %x, !dbg !60
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 0, 1, 2, 3, 9, 8, 7, 6, 5, 4 }
// CHECK:STDOUT: uselistorder ptr @_CF.Main.e8193710fd35b608, { 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
// CHECK:STDOUT: !llvm.dbg.cu = !{!2}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "call_specific_in_class.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "M", linkageName: "_CM.Main", scope: null, file: !3, line: 32, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 33, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 35, column: 3, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 37, column: 3, scope: !4)
// CHECK:STDOUT: !10 = !DILocation(line: 39, column: 3, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 41, column: 3, scope: !4)
// CHECK:STDOUT: !12 = !DILocation(line: 43, column: 3, scope: !4)
// CHECK:STDOUT: !13 = !DILocation(line: 34, column: 5, scope: !4)
// CHECK:STDOUT: !14 = !DILocation(line: 34, column: 3, scope: !4)
// CHECK:STDOUT: !15 = !DILocation(line: 36, column: 5, scope: !4)
// CHECK:STDOUT: !16 = !DILocation(line: 36, column: 3, scope: !4)
// CHECK:STDOUT: !17 = !DILocation(line: 38, column: 5, scope: !4)
// CHECK:STDOUT: !18 = !DILocation(line: 38, column: 3, scope: !4)
// CHECK:STDOUT: !19 = !DILocation(line: 40, column: 5, scope: !4)
// CHECK:STDOUT: !20 = !DILocation(line: 40, column: 3, scope: !4)
// CHECK:STDOUT: !21 = !DILocation(line: 42, column: 5, scope: !4)
// CHECK:STDOUT: !22 = !DILocation(line: 42, column: 3, scope: !4)
// CHECK:STDOUT: !23 = !DILocation(line: 44, column: 3, scope: !4)
// CHECK:STDOUT: !24 = !DILocation(line: 32, column: 1, scope: !4)
// CHECK:STDOUT: !25 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.e8193710fd35b608", scope: null, file: !3, line: 28, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !26 = !DILocation(line: 29, column: 10, scope: !25)
// CHECK:STDOUT: !27 = !DILocation(line: 29, column: 3, scope: !25)
// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.b88d1103f417c6d4", scope: null, file: !3, line: 28, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !29 = !DILocation(line: 29, column: 10, scope: !28)
// CHECK:STDOUT: !30 = !DILocation(line: 29, column: 3, scope: !28)
// CHECK:STDOUT: !31 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.66be507887ceee78", scope: null, file: !3, line: 28, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !32 = !DILocation(line: 29, column: 10, scope: !31)
// CHECK:STDOUT: !33 = !DILocation(line: 29, column: 3, scope: !31)
// CHECK:STDOUT: !34 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.5754c7a55c7cbe4a", scope: null, file: !3, line: 28, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !35 = !DILocation(line: 29, column: 10, scope: !34)
// CHECK:STDOUT: !36 = !DILocation(line: 29, column: 3, scope: !34)
// CHECK:STDOUT: !37 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.e8193710fd35b608", scope: null, file: !3, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !38 = !DILocation(line: 24, column: 3, scope: !37)
// CHECK:STDOUT: !39 = !DILocation(line: 25, column: 10, scope: !37)
// CHECK:STDOUT: !40 = !DILocation(line: 25, column: 3, scope: !37)
// CHECK:STDOUT: !41 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.b88d1103f417c6d4", scope: null, file: !3, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !42 = !DILocation(line: 24, column: 3, scope: !41)
// CHECK:STDOUT: !43 = !DILocation(line: 25, column: 10, scope: !41)
// CHECK:STDOUT: !44 = !DILocation(line: 25, column: 3, scope: !41)
// CHECK:STDOUT: !45 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.66be507887ceee78", scope: null, file: !3, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !46 = !DILocation(line: 24, column: 3, scope: !45)
// CHECK:STDOUT: !47 = !DILocation(line: 25, column: 10, scope: !45)
// CHECK:STDOUT: !48 = !DILocation(line: 25, column: 3, scope: !45)
// CHECK:STDOUT: !49 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.5754c7a55c7cbe4a", scope: null, file: !3, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !50 = !DILocation(line: 24, column: 3, scope: !49)
// CHECK:STDOUT: !51 = !DILocation(line: 25, column: 10, scope: !49)
// CHECK:STDOUT: !52 = !DILocation(line: 25, column: 3, scope: !49)
// CHECK:STDOUT: !53 = distinct !DISubprogram(name: "Cfn", linkageName: "_CCfn.C.Main.e8193710fd35b608", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !54 = !DILocation(line: 19, column: 5, scope: !53)
// CHECK:STDOUT: !55 = distinct !DISubprogram(name: "Cfn", linkageName: "_CCfn.C.Main.b88d1103f417c6d4", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !56 = !DILocation(line: 19, column: 5, scope: !55)
// CHECK:STDOUT: !57 = distinct !DISubprogram(name: "Cfn", linkageName: "_CCfn.C.Main.66be507887ceee78", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !58 = !DILocation(line: 19, column: 5, scope: !57)
// CHECK:STDOUT: !59 = distinct !DISubprogram(name: "Cfn", linkageName: "_CCfn.C.Main.5754c7a55c7cbe4a", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !60 = !DILocation(line: 19, column: 5, scope: !59)
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