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carbon-lang/toolchain/lower/testdata/array/base.carbon
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Dana Jansens 5ae5170421 Allow deduction of tuple and struct literals as symbolic generic facet types (#6365) 
Give TupleLiteral and StructLiteral a constant value, if their contents
have constant values. Their constant values are TupleValue and
StructValue respectively. This supports their ability to convert to a
constant type (or facet type).

This way when deduce finds a TupleLiteral as the argument to a
_symbolic_ facet type, it can also find a constant value to use for that
argument. This allows deduction to move onto step two, where it can
substitute into the symbolic parameter from previous deduced arguments,
and then perform the conversion from the TupleValue to the desired facet
type.

Allow `PerformBuiltinConversion()` to convert from a canonical
TupleValue or StructValue to `type` instead of only from literals. Then,
also support conversion from a symbolic binding of type TupleType or
StructType to `type`.
2025-11-13 20:17:44 +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/array/base.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/array/base.carbon
fn Run() {
var a: array(i32, 1) = (1,);
var b: array(f64, 2) = (11.1, 2.2,);
var c: array((), 5) = ((), (), (), (), (),);
var d: (i32, i32, i32) = (1, 2, 3);
var e: array(i32, 3) = d;
}
// CHECK:STDOUT: ; ModuleID = 'base.carbon'
// CHECK:STDOUT: source_filename = "base.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: @array.237.loc14_3 = internal constant [1 x i32] [i32 1]
// CHECK:STDOUT: @array.b91.loc15_3 = internal constant [2 x double] [double 1.110000e+01, double 2.200000e+00]
// CHECK:STDOUT: @array.1cb.loc16_3 = internal constant [5 x {}] zeroinitializer
// CHECK:STDOUT: @tuple.ee6.loc17_3 = internal constant { i32, i32, i32 } { i32 1, i32 2, i32 3 }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %a.var = alloca [1 x i32], align 4, !dbg !7
// CHECK:STDOUT: %b.var = alloca [2 x double], align 8, !dbg !8
// CHECK:STDOUT: %c.var = alloca [5 x {}], align 8, !dbg !9
// CHECK:STDOUT: %d.var = alloca { i32, i32, i32 }, align 8, !dbg !10
// CHECK:STDOUT: %e.var = alloca [3 x i32], align 4, !dbg !11
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %a.var), !dbg !7
// CHECK:STDOUT: %.loc14_29.3.array.index = getelementptr inbounds [1 x i32], ptr %a.var, i32 0, i64 0, !dbg !12
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %a.var, ptr align 4 @array.237.loc14_3, i64 4, i1 false), !dbg !7
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %b.var), !dbg !8
// CHECK:STDOUT: %.loc15_37.3.array.index = getelementptr inbounds [2 x double], ptr %b.var, i32 0, i64 0, !dbg !13
// CHECK:STDOUT: %.loc15_37.6.array.index = getelementptr inbounds [2 x double], ptr %b.var, i32 0, i64 1, !dbg !13
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 %b.var, ptr align 8 @array.b91.loc15_3, i64 16, i1 false), !dbg !8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %c.var), !dbg !9
// CHECK:STDOUT: %.loc16_45.2.array.index = getelementptr inbounds [5 x {}], ptr %c.var, i32 0, i64 0, !dbg !14
// CHECK:STDOUT: %.loc16_45.4.array.index = getelementptr inbounds [5 x {}], ptr %c.var, i32 0, i64 1, !dbg !14
// CHECK:STDOUT: %.loc16_45.6.array.index = getelementptr inbounds [5 x {}], ptr %c.var, i32 0, i64 2, !dbg !14
// CHECK:STDOUT: %.loc16_45.8.array.index = getelementptr inbounds [5 x {}], ptr %c.var, i32 0, i64 3, !dbg !14
// CHECK:STDOUT: %.loc16_45.10.array.index = getelementptr inbounds [5 x {}], ptr %c.var, i32 0, i64 4, !dbg !14
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %c.var, ptr align 1 @array.1cb.loc16_3, i64 0, i1 false), !dbg !9
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %d.var), !dbg !10
// CHECK:STDOUT: %tuple.elem0.loc17.tuple.elem = getelementptr inbounds nuw { i32, i32, i32 }, ptr %d.var, i32 0, i32 0, !dbg !15
// CHECK:STDOUT: %tuple.elem1.loc17.tuple.elem = getelementptr inbounds nuw { i32, i32, i32 }, ptr %d.var, i32 0, i32 1, !dbg !15
// CHECK:STDOUT: %tuple.elem2.loc17.tuple.elem = getelementptr inbounds nuw { i32, i32, i32 }, ptr %d.var, i32 0, i32 2, !dbg !15
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %d.var, ptr align 4 @tuple.ee6.loc17_3, i64 12, i1 false), !dbg !10
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %e.var), !dbg !11
// CHECK:STDOUT: %tuple.elem0.loc18.tuple.elem = getelementptr inbounds nuw { i32, i32, i32 }, ptr %d.var, i32 0, i32 0, !dbg !16
// CHECK:STDOUT: %.loc18_26.1 = load i32, ptr %tuple.elem0.loc18.tuple.elem, align 4, !dbg !16
// CHECK:STDOUT: %.loc18_26.2.array.index = getelementptr inbounds [3 x i32], ptr %e.var, i32 0, i64 0, !dbg !16
// CHECK:STDOUT: store i32 %.loc18_26.1, ptr %.loc18_26.2.array.index, align 4, !dbg !16
// CHECK:STDOUT: %tuple.elem1.loc18.tuple.elem = getelementptr inbounds nuw { i32, i32, i32 }, ptr %d.var, i32 0, i32 1, !dbg !16
// CHECK:STDOUT: %.loc18_26.4 = load i32, ptr %tuple.elem1.loc18.tuple.elem, align 4, !dbg !16
// CHECK:STDOUT: %.loc18_26.5.array.index = getelementptr inbounds [3 x i32], ptr %e.var, i32 0, i64 1, !dbg !16
// CHECK:STDOUT: store i32 %.loc18_26.4, ptr %.loc18_26.5.array.index, align 4, !dbg !16
// CHECK:STDOUT: %tuple.elem2.loc18.tuple.elem = getelementptr inbounds nuw { i32, i32, i32 }, ptr %d.var, i32 0, i32 2, !dbg !16
// CHECK:STDOUT: %.loc18_26.7 = load i32, ptr %tuple.elem2.loc18.tuple.elem, align 4, !dbg !16
// CHECK:STDOUT: %.loc18_26.8.array.index = getelementptr inbounds [3 x i32], ptr %e.var, i32 0, i64 2, !dbg !16
// CHECK:STDOUT: store i32 %.loc18_26.7, ptr %.loc18_26.8.array.index, align 4, !dbg !16
// CHECK:STDOUT: ret void, !dbg !17
// 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: 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) #2
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 4, 3, 2, 1, 0 }
// CHECK:STDOUT: uselistorder ptr @llvm.memcpy.p0.p0.i64, { 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 = { 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: "base.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !3, line: 13, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 14, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 15, column: 3, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 16, column: 3, scope: !4)
// CHECK:STDOUT: !10 = !DILocation(line: 17, column: 3, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 18, column: 3, scope: !4)
// CHECK:STDOUT: !12 = !DILocation(line: 14, column: 26, scope: !4)
// CHECK:STDOUT: !13 = !DILocation(line: 15, column: 26, scope: !4)
// CHECK:STDOUT: !14 = !DILocation(line: 16, column: 25, scope: !4)
// CHECK:STDOUT: !15 = !DILocation(line: 17, column: 28, scope: !4)
// CHECK:STDOUT: !16 = !DILocation(line: 18, column: 26, scope: !4)
// CHECK:STDOUT: !17 = !DILocation(line: 13, column: 1, scope: !4)
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