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fe020ee08bae71ca593ed964bbf787e651fc5d4d
carbon-lang/toolchain/lower/testdata/array/iterate.carbon
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Dana Jansens fe020ee08b Make FacetAccessType evaluate to SymbolicBindingType for type-of a BindSymbolicName (#6115) 
The SymbolicBindingType refers to the type value that will be
substituted in for the BindSymbolicName, but holds onto the EntityNameId
from the BindSymbolicName instead of (or in addition to, for now) the
instruction.

The EntityNameId will be used to look in the ScopeStack to find the
witnesses either from the BindSymbolicName instruction, or other
instructions that specify `impls` constraints against the EntityName.

This will allow us to have the `T` in `I(T)` resolve to a `.Self`
reference in the type so that we get type equality with the binding's
type: `T:! I(.Self)`.
2025-10-06 18:56:43 +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/full.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/array/iterate.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/array/iterate.carbon
fn G(n: i32);
fn F() {
let a: array(i32, 6) = (1, 2, 3, 4, 5, 6);
for (n: i32 in a) {
G(n);
}
}
// CHECK:STDOUT: ; ModuleID = 'iterate.carbon'
// CHECK:STDOUT: source_filename = "iterate.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: @array.loc16_43.22 = internal constant [6 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5, i32 6]
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CG.Main(i32)
// CHECK:STDOUT:
// CHECK:STDOUT: define void @_CF.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc16_43.3.temp = alloca [6 x i32], align 4, !dbg !7
// CHECK:STDOUT: %var = alloca i32, align 4, !dbg !8
// CHECK:STDOUT: %.loc17_19.3.temp = alloca { i1, i32 }, align 8, !dbg !8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc16_43.3.temp), !dbg !7
// CHECK:STDOUT: %.loc16_43.4.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 0, !dbg !7
// CHECK:STDOUT: %.loc16_43.7.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 1, !dbg !7
// CHECK:STDOUT: %.loc16_43.10.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 2, !dbg !7
// CHECK:STDOUT: %.loc16_43.13.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 3, !dbg !7
// CHECK:STDOUT: %.loc16_43.16.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 4, !dbg !7
// CHECK:STDOUT: %.loc16_43.19.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 5, !dbg !7
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %.loc16_43.3.temp, ptr align 4 @array.loc16_43.22, i64 24, i1 false), !dbg !7
// CHECK:STDOUT: %array_type.as.Iterate.impl.NewCursor.call = call i32 @"_CNewCursor.25e6cb2a64776520:Iterate.Core.c71fd8c166af9f17"(ptr %.loc16_43.3.temp), !dbg !8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %var), !dbg !8
// CHECK:STDOUT: store i32 %array_type.as.Iterate.impl.NewCursor.call, ptr %var, align 4, !dbg !8
// CHECK:STDOUT: br label %for.next, !dbg !8
// CHECK:STDOUT:
// CHECK:STDOUT: for.next: ; preds = %for.body, %entry
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc17_19.3.temp), !dbg !8
// CHECK:STDOUT: call void @"_CNext.25e6cb2a64776520:Iterate.Core.c71fd8c166af9f17"(ptr %.loc17_19.3.temp, ptr %.loc16_43.3.temp, ptr %var), !dbg !8
// CHECK:STDOUT: %Optional.HasValue.call = call i1 @_CHasValue.Optional.Core.de631560529e9861(ptr %.loc17_19.3.temp), !dbg !8
// CHECK:STDOUT: br i1 %Optional.HasValue.call, label %for.body, label %for.done, !dbg !8
// CHECK:STDOUT:
// CHECK:STDOUT: for.body: ; preds = %for.next
// CHECK:STDOUT: %Optional.Get.call = call i32 @_CGet.Optional.Core.de631560529e9861(ptr %.loc17_19.3.temp), !dbg !8
// CHECK:STDOUT: call void @_CG.Main(i32 %Optional.Get.call), !dbg !9
// CHECK:STDOUT: br label %for.next, !dbg !10
// CHECK:STDOUT:
// CHECK:STDOUT: for.done: ; preds = %for.next
// CHECK:STDOUT: ret void, !dbg !11
// 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)) #0
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i32 @"_CNewCursor.25e6cb2a64776520:Iterate.Core.c71fd8c166af9f17"(ptr %self) !dbg !12 {
// CHECK:STDOUT: ret i32 0, !dbg !14
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @"_CNext.25e6cb2a64776520:Iterate.Core.c71fd8c166af9f17"(ptr sret({ i1, i32 }) %return, ptr %self, ptr %cursor) !dbg !15 {
// CHECK:STDOUT: %1 = load i32, ptr %cursor, align 4, !dbg !16
// CHECK:STDOUT: %2 = icmp slt i32 %1, 6, !dbg !16
// CHECK:STDOUT: br i1 %2, label %3, label %7, !dbg !17
// CHECK:STDOUT:
// CHECK:STDOUT: 3: ; preds = %0
// CHECK:STDOUT: call void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %cursor), !dbg !18
// CHECK:STDOUT: %4 = load i32, ptr %cursor, align 4, !dbg !19
// CHECK:STDOUT: %5 = sub i32 %4, 1, !dbg !19
// CHECK:STDOUT: %array.index = getelementptr inbounds [6 x i32], ptr %self, i32 0, i32 %5, !dbg !20
// CHECK:STDOUT: %6 = load i32, ptr %array.index, align 4, !dbg !20
// CHECK:STDOUT: call void @_CSome.Optional.Core.de631560529e9861(ptr %return, i32 %6), !dbg !21
// CHECK:STDOUT: ret void, !dbg !22
// CHECK:STDOUT:
// CHECK:STDOUT: 7: ; preds = %0
// CHECK:STDOUT: call void @_CNone.Optional.Core.de631560529e9861(ptr %return), !dbg !23
// CHECK:STDOUT: ret void, !dbg !24
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i1 @_CHasValue.Optional.Core.de631560529e9861(ptr %self) !dbg !25 {
// CHECK:STDOUT: %has_value = getelementptr inbounds nuw { i1, i32 }, ptr %self, i32 0, i32 0, !dbg !27
// CHECK:STDOUT: %1 = load i8, ptr %has_value, align 1, !dbg !27
// CHECK:STDOUT: %2 = trunc i8 %1 to i1, !dbg !27
// CHECK:STDOUT: ret i1 %2, !dbg !28
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i32 @_CGet.Optional.Core.de631560529e9861(ptr %self) !dbg !29 {
// CHECK:STDOUT: %value = getelementptr inbounds nuw { i1, i32 }, ptr %self, i32 0, i32 1, !dbg !30
// CHECK:STDOUT: %1 = load i32, ptr %value, align 4, !dbg !30
// CHECK:STDOUT: ret i32 %1, !dbg !31
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %self) !dbg !32 {
// CHECK:STDOUT: call void @"_COp:thunk.Int.Core:AddAssignWith.Core.406b182375ada471"(ptr %self, i32 1), !dbg !34
// CHECK:STDOUT: ret void, !dbg !35
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @_CSome.Optional.Core.de631560529e9861(ptr sret({ i1, i32 }) %return, i32 %value) !dbg !36 {
// CHECK:STDOUT: %has_value = getelementptr inbounds nuw { i1, i32 }, ptr %return, i32 0, i32 0, !dbg !37
// CHECK:STDOUT: %value1 = getelementptr inbounds nuw { i1, i32 }, ptr %return, i32 0, i32 1, !dbg !37
// CHECK:STDOUT: store i32 %value, ptr %value1, align 4, !dbg !37
// CHECK:STDOUT: store i8 1, ptr %has_value, align 1, !dbg !37
// CHECK:STDOUT: ret void, !dbg !38
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @_CNone.Optional.Core.de631560529e9861(ptr sret({ i1, i32 }) %return) !dbg !39 {
// CHECK:STDOUT: %has_value = getelementptr inbounds nuw { i1, i32 }, ptr %return, i32 0, i32 0, !dbg !40
// CHECK:STDOUT: store i8 0, ptr %has_value, align 1, !dbg !40
// CHECK:STDOUT: ret void, !dbg !41
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.406b182375ada471"(ptr %self, i32 %other) !dbg !42 {
// CHECK:STDOUT: %1 = call i32 @"_CConvert.549023863aee3dc2:ImplicitAs.Core.b502b6d26692ae95"(i32 %other), !dbg !43
// CHECK:STDOUT: %2 = load i32, ptr %self, align 4, !dbg !44
// CHECK:STDOUT: %3 = add i32 %2, %1, !dbg !44
// CHECK:STDOUT: store i32 %3, ptr %self, align 4, !dbg !44
// CHECK:STDOUT: ret void, !dbg !44
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i32 @"_CConvert.549023863aee3dc2:ImplicitAs.Core.b502b6d26692ae95"(i32 %self) !dbg !45 {
// CHECK:STDOUT: ret i32 %self, !dbg !47
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT: attributes #1 = { nocallback nofree 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: "iterate.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !3, line: 15, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 16, column: 26, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 17, column: 7, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 18, column: 5, scope: !4)
// CHECK:STDOUT: !10 = !DILocation(line: 17, column: 3, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 15, column: 1, scope: !4)
// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "NewCursor", linkageName: "_CNewCursor.25e6cb2a64776520:Iterate.Core.c71fd8c166af9f17", scope: null, file: !13, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !13 = !DIFile(filename: "{{.*}}/prelude/iterate.carbon", directory: "")
// CHECK:STDOUT: !14 = !DILocation(line: 23, column: 39, scope: !12)
// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "Next", linkageName: "_CNext.25e6cb2a64776520:Iterate.Core.c71fd8c166af9f17", scope: null, file: !13, line: 24, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !16 = !DILocation(line: 25, column: 9, scope: !15)
// CHECK:STDOUT: !17 = !DILocation(line: 25, column: 8, scope: !15)
// CHECK:STDOUT: !18 = !DILocation(line: 26, column: 7, scope: !15)
// CHECK:STDOUT: !19 = !DILocation(line: 27, column: 36, scope: !15)
// CHECK:STDOUT: !20 = !DILocation(line: 27, column: 31, scope: !15)
// CHECK:STDOUT: !21 = !DILocation(line: 27, column: 14, scope: !15)
// CHECK:STDOUT: !22 = !DILocation(line: 27, column: 7, scope: !15)
// CHECK:STDOUT: !23 = !DILocation(line: 29, column: 14, scope: !15)
// CHECK:STDOUT: !24 = !DILocation(line: 29, column: 7, scope: !15)
// CHECK:STDOUT: !25 = distinct !DISubprogram(name: "HasValue", linkageName: "_CHasValue.Optional.Core.de631560529e9861", scope: null, file: !26, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !26 = !DIFile(filename: "{{.*}}/prelude/types/optional.carbon", directory: "")
// CHECK:STDOUT: !27 = !DILocation(line: 30, column: 46, scope: !25)
// CHECK:STDOUT: !28 = !DILocation(line: 30, column: 39, scope: !25)
// CHECK:STDOUT: !29 = distinct !DISubprogram(name: "Get", linkageName: "_CGet.Optional.Core.de631560529e9861", scope: null, file: !26, line: 31, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !30 = !DILocation(line: 31, column: 38, scope: !29)
// CHECK:STDOUT: !31 = !DILocation(line: 31, column: 31, scope: !29)
// CHECK:STDOUT: !32 = distinct !DISubprogram(name: "Op", linkageName: "_COp.Int.Core:Inc.Core.be1e879c1ad406d8", scope: null, file: !33, line: 339, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !33 = !DIFile(filename: "{{.*}}/prelude/types/int.carbon", directory: "")
// CHECK:STDOUT: !34 = !DILocation(line: 341, column: 5, scope: !32)
// CHECK:STDOUT: !35 = !DILocation(line: 339, column: 3, scope: !32)
// CHECK:STDOUT: !36 = distinct !DISubprogram(name: "Some", linkageName: "_CSome.Optional.Core.de631560529e9861", scope: null, file: !26, line: 26, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !37 = !DILocation(line: 27, column: 12, scope: !36)
// CHECK:STDOUT: !38 = !DILocation(line: 27, column: 5, scope: !36)
// CHECK:STDOUT: !39 = distinct !DISubprogram(name: "None", linkageName: "_CNone.Optional.Core.de631560529e9861", scope: null, file: !26, line: 20, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !40 = !DILocation(line: 22, column: 5, scope: !39)
// CHECK:STDOUT: !41 = !DILocation(line: 23, column: 5, scope: !39)
// CHECK:STDOUT: !42 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.406b182375ada471", scope: null, file: !33, line: 275, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !43 = !DILocation(line: 4294967295, scope: !42)
// CHECK:STDOUT: !44 = !DILocation(line: 275, column: 3, scope: !42)
// CHECK:STDOUT: !45 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.549023863aee3dc2:ImplicitAs.Core.b502b6d26692ae95", scope: null, file: !46, line: 24, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !46 = !DIFile(filename: "{{.*}}/prelude/operators/as.carbon", directory: "")
// CHECK:STDOUT: !47 = !DILocation(line: 24, column: 38, scope: !45)
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