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carbon-lang/toolchain/lower/testdata/function/generic/call_deref_ptr.carbon
T
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/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_deref_ptr.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/generic/call_deref_ptr.carbon
// Builds on call_basic.carbon and call_impl_function.carbon.
// Test that when equivalence is found for the specific fingerprint, we don't
// conclude "equivalent" for all the call graph. This is to account for
// switching to a work-queue from recursion.
fn A[U:! Core.Copy](x: U) -> U {
return x;
}
fn D[U:! Core.Copy](x: U) -> U {
return x;
}
fn B[U:! Core.Copy & Core.Destroy](x: U*) {
D(*x);
}
fn F[T:! Core.Copy & Core.Destroy](x: T*) {
A(i32);
B(x);
}
fn M() {
var ptr_i32 : i32*;
var ptr_f64 : f64*;
F(ptr_i32);
F(ptr_f64);
}
// CHECK:STDOUT: ; ModuleID = 'call_deref_ptr.carbon'
// CHECK:STDOUT: source_filename = "call_deref_ptr.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: call void @llvm.lifetime.start.p0(ptr %ptr_i32.var), !dbg !7
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %ptr_f64.var), !dbg !8
// CHECK:STDOUT: %.loc39_5 = load ptr, ptr %ptr_i32.var, align 8, !dbg !9
// CHECK:STDOUT: call void @_CF.Main.c831c62a6babb214(ptr %.loc39_5), !dbg !10
// CHECK:STDOUT: %.loc40_5 = load ptr, ptr %ptr_f64.var, align 8, !dbg !11
// CHECK:STDOUT: call void @_CF.Main.54ba0c5f7a576a29(ptr %.loc40_5), !dbg !12
// CHECK:STDOUT: ret void, !dbg !13
// 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: define linkonce_odr void @_CF.Main.c831c62a6babb214(ptr %x) !dbg !14 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %A.call = call %type @_CA.Main.402deed6b8733082(%type zeroinitializer), !dbg !15
// CHECK:STDOUT: call void @_CB.Main.c831c62a6babb214(ptr %x), !dbg !16
// CHECK:STDOUT: ret void, !dbg !17
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @_CF.Main.54ba0c5f7a576a29(ptr %x) !dbg !18 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %A.call = call %type @_CA.Main.402deed6b8733082(%type zeroinitializer), !dbg !19
// CHECK:STDOUT: call void @_CB.Main.54ba0c5f7a576a29(ptr %x), !dbg !20
// CHECK:STDOUT: ret void, !dbg !21
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr %type @_CA.Main.402deed6b8733082(%type %x) !dbg !22 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret %type %x, !dbg !23
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @_CB.Main.c831c62a6babb214(ptr %x) !dbg !24 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc27_7.3.temp = alloca i32, align 4, !dbg !25
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc27_7.3.temp), !dbg !25
// CHECK:STDOUT: %.loc27_5.2 = load i32, ptr %x, align 4, !dbg !26
// CHECK:STDOUT: %D.call = call i32 @_CD.Main.de631560529e9861(i32 %.loc27_5.2), !dbg !25
// CHECK:STDOUT: store i32 %D.call, ptr %.loc27_7.3.temp, align 4, !dbg !25
// CHECK:STDOUT: ret void, !dbg !27
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr void @_CB.Main.54ba0c5f7a576a29(ptr %x) !dbg !28 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc27_7.3.temp = alloca double, align 8, !dbg !29
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc27_7.3.temp), !dbg !29
// CHECK:STDOUT: %.loc27_5.2 = load double, ptr %x, align 8, !dbg !30
// CHECK:STDOUT: %D.call = call double @_CD.Main.3836ccc537683c19(double %.loc27_5.2), !dbg !29
// CHECK:STDOUT: store double %D.call, ptr %.loc27_7.3.temp, align 8, !dbg !29
// CHECK:STDOUT: ret void, !dbg !31
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr i32 @_CD.Main.de631560529e9861(i32 %x) !dbg !32 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret i32 %x, !dbg !33
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr double @_CD.Main.3836ccc537683c19(double %x) !dbg !34 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret double %x, !dbg !35
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 0, 1, 3, 2 }
// CHECK:STDOUT: uselistorder ptr @_CA.Main.402deed6b8733082, { 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_deref_ptr.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "M", linkageName: "_CM.Main", scope: null, file: !3, line: 35, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 36, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 37, column: 3, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 39, column: 5, scope: !4)
// CHECK:STDOUT: !10 = !DILocation(line: 39, column: 3, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 40, column: 5, scope: !4)
// CHECK:STDOUT: !12 = !DILocation(line: 40, column: 3, scope: !4)
// CHECK:STDOUT: !13 = !DILocation(line: 35, column: 1, scope: !4)
// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.c831c62a6babb214", scope: null, file: !3, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !15 = !DILocation(line: 31, column: 3, scope: !14)
// CHECK:STDOUT: !16 = !DILocation(line: 32, column: 3, scope: !14)
// CHECK:STDOUT: !17 = !DILocation(line: 30, column: 1, scope: !14)
// CHECK:STDOUT: !18 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.54ba0c5f7a576a29", scope: null, file: !3, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !19 = !DILocation(line: 31, column: 3, scope: !18)
// CHECK:STDOUT: !20 = !DILocation(line: 32, column: 3, scope: !18)
// CHECK:STDOUT: !21 = !DILocation(line: 30, column: 1, scope: !18)
// CHECK:STDOUT: !22 = distinct !DISubprogram(name: "A", linkageName: "_CA.Main.402deed6b8733082", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !23 = !DILocation(line: 19, column: 3, scope: !22)
// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.c831c62a6babb214", scope: null, file: !3, line: 26, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !25 = !DILocation(line: 27, column: 3, scope: !24)
// CHECK:STDOUT: !26 = !DILocation(line: 27, column: 5, scope: !24)
// CHECK:STDOUT: !27 = !DILocation(line: 26, column: 1, scope: !24)
// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.54ba0c5f7a576a29", scope: null, file: !3, line: 26, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !29 = !DILocation(line: 27, column: 3, scope: !28)
// CHECK:STDOUT: !30 = !DILocation(line: 27, column: 5, scope: !28)
// CHECK:STDOUT: !31 = !DILocation(line: 26, column: 1, scope: !28)
// CHECK:STDOUT: !32 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.de631560529e9861", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !33 = !DILocation(line: 23, column: 3, scope: !32)
// CHECK:STDOUT: !34 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.3836ccc537683c19", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !35 = !DILocation(line: 23, column: 3, scope: !34)
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