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ba6257891e614ddfcc441d060bf6427627a3df5f
carbon-lang/toolchain/lower/testdata/function/generic/call_different_specific.carbon
T
Geoff Romer ba6257891e Remove ValueParamPattern case from deduction (#6869) 
This case is redundant: when deducing against a runtime parameter
pattern, the type is all that matters, and the type is added to the
deduction earlier. Additionally deducing the same argument against
parameter's subpattern just creates duplicate work, because the
subpattern has the same type.
2026-03-10 21:15:38 +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/function/generic/call_different_specific.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/generic/call_different_specific.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.
// The two calls to F have the same function type, but the corresponding
// definitions should not be coalesced. The function bodies of the two
// specifics of F look mostly identical: same type for the parameters,
// calling the same A and different specifics of B, with the same function
// type. The difference is discovered in the call graph inside the two B
// specifics, where the pointer values are different, and the calls to the
// two D specifics are to functions with different function types.
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_different_specific.carbon'
// CHECK:STDOUT: source_filename = "call_different_specific.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: %type = type {}
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CM.Main() #0 !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: %.loc46_5 = load ptr, ptr %ptr_i32.var, align 8, !dbg !9
// CHECK:STDOUT: call void @_CF.Main.bfb441135f07cbe1(ptr %.loc46_5), !dbg !10
// CHECK:STDOUT: %.loc47_5 = load ptr, ptr %ptr_f64.var, align 8, !dbg !11
// CHECK:STDOUT: call void @_CF.Main.29cf1dfeccef7249(ptr %.loc47_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)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CF.Main.bfb441135f07cbe1(ptr %x) #0 !dbg !14 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %A.call = call %type @_CA.Main.582d60b54baf6b63(%type zeroinitializer), !dbg !20
// CHECK:STDOUT: call void @_CB.Main.bfb441135f07cbe1(ptr %x), !dbg !21
// CHECK:STDOUT: ret void, !dbg !22
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CF.Main.29cf1dfeccef7249(ptr %x) #0 !dbg !23 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %A.call = call %type @_CA.Main.582d60b54baf6b63(%type zeroinitializer), !dbg !26
// CHECK:STDOUT: call void @_CB.Main.29cf1dfeccef7249(ptr %x), !dbg !27
// CHECK:STDOUT: ret void, !dbg !28
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr %type @_CA.Main.582d60b54baf6b63(%type %x) #0 !dbg !29 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret %type %x, !dbg !34
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CB.Main.bfb441135f07cbe1(ptr %x) #0 !dbg !35 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc34_7.2.temp = alloca i32, align 4, !dbg !38
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc34_7.2.temp), !dbg !38
// CHECK:STDOUT: %.loc34_5.2 = load i32, ptr %x, align 4, !dbg !39
// CHECK:STDOUT: %D.call = call i32 @_CD.Main.64ccbb8e5d9a0b8e(i32 %.loc34_5.2), !dbg !38
// CHECK:STDOUT: store i32 %D.call, ptr %.loc34_7.2.temp, align 4, !dbg !38
// CHECK:STDOUT: ret void, !dbg !40
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CB.Main.29cf1dfeccef7249(ptr %x) #0 !dbg !41 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc34_7.2.temp = alloca double, align 8, !dbg !44
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc34_7.2.temp), !dbg !44
// CHECK:STDOUT: %.loc34_5.2 = load double, ptr %x, align 8, !dbg !45
// CHECK:STDOUT: %D.call = call double @_CD.Main.de5b400758c39a65(double %.loc34_5.2), !dbg !44
// CHECK:STDOUT: store double %D.call, ptr %.loc34_7.2.temp, align 8, !dbg !44
// CHECK:STDOUT: ret void, !dbg !46
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i32 @_CD.Main.64ccbb8e5d9a0b8e(i32 %x) #0 !dbg !47 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret i32 %x, !dbg !53
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr double @_CD.Main.de5b400758c39a65(double %x) #0 !dbg !54 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret double %x, !dbg !57
// 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.582d60b54baf6b63, { 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { 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_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "call_different_specific.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "M", linkageName: "_CM.Main", scope: null, file: !3, line: 42, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 43, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 44, column: 3, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 46, column: 5, scope: !4)
// CHECK:STDOUT: !10 = !DILocation(line: 46, column: 3, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 47, column: 5, scope: !4)
// CHECK:STDOUT: !12 = !DILocation(line: 47, column: 3, scope: !4)
// CHECK:STDOUT: !13 = !DILocation(line: 42, column: 1, scope: !4)
// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.bfb441135f07cbe1", scope: null, file: !3, line: 37, type: !15, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !18)
// CHECK:STDOUT: !15 = !DISubroutineType(types: !16)
// CHECK:STDOUT: !16 = !{null, !17}
// CHECK:STDOUT: !17 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
// CHECK:STDOUT: !18 = !{!19}
// CHECK:STDOUT: !19 = !DILocalVariable(arg: 1, scope: !14, type: !17)
// CHECK:STDOUT: !20 = !DILocation(line: 38, column: 3, scope: !14)
// CHECK:STDOUT: !21 = !DILocation(line: 39, column: 3, scope: !14)
// CHECK:STDOUT: !22 = !DILocation(line: 37, column: 1, scope: !14)
// CHECK:STDOUT: !23 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.29cf1dfeccef7249", scope: null, file: !3, line: 37, type: !15, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !24)
// CHECK:STDOUT: !24 = !{!25}
// CHECK:STDOUT: !25 = !DILocalVariable(arg: 1, scope: !23, type: !17)
// CHECK:STDOUT: !26 = !DILocation(line: 38, column: 3, scope: !23)
// CHECK:STDOUT: !27 = !DILocation(line: 39, column: 3, scope: !23)
// CHECK:STDOUT: !28 = !DILocation(line: 37, column: 1, scope: !23)
// CHECK:STDOUT: !29 = distinct !DISubprogram(name: "A", linkageName: "_CA.Main.582d60b54baf6b63", scope: null, file: !3, line: 25, type: !30, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !32)
// CHECK:STDOUT: !30 = !DISubroutineType(types: !31)
// CHECK:STDOUT: !31 = !{!17, !17}
// CHECK:STDOUT: !32 = !{!33}
// CHECK:STDOUT: !33 = !DILocalVariable(arg: 1, scope: !29, type: !17)
// CHECK:STDOUT: !34 = !DILocation(line: 26, column: 3, scope: !29)
// CHECK:STDOUT: !35 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.bfb441135f07cbe1", scope: null, file: !3, line: 33, type: !15, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !36)
// CHECK:STDOUT: !36 = !{!37}
// CHECK:STDOUT: !37 = !DILocalVariable(arg: 1, scope: !35, type: !17)
// CHECK:STDOUT: !38 = !DILocation(line: 34, column: 3, scope: !35)
// CHECK:STDOUT: !39 = !DILocation(line: 34, column: 5, scope: !35)
// CHECK:STDOUT: !40 = !DILocation(line: 33, column: 1, scope: !35)
// CHECK:STDOUT: !41 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.29cf1dfeccef7249", scope: null, file: !3, line: 33, type: !15, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !42)
// CHECK:STDOUT: !42 = !{!43}
// CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !41, type: !17)
// CHECK:STDOUT: !44 = !DILocation(line: 34, column: 3, scope: !41)
// CHECK:STDOUT: !45 = !DILocation(line: 34, column: 5, scope: !41)
// CHECK:STDOUT: !46 = !DILocation(line: 33, column: 1, scope: !41)
// CHECK:STDOUT: !47 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.64ccbb8e5d9a0b8e", scope: null, file: !3, line: 29, type: !48, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !51)
// CHECK:STDOUT: !48 = !DISubroutineType(types: !49)
// CHECK:STDOUT: !49 = !{!50, !50}
// CHECK:STDOUT: !50 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !51 = !{!52}
// CHECK:STDOUT: !52 = !DILocalVariable(arg: 1, scope: !47, type: !50)
// CHECK:STDOUT: !53 = !DILocation(line: 30, column: 3, scope: !47)
// CHECK:STDOUT: !54 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.de5b400758c39a65", scope: null, file: !3, line: 29, type: !30, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !55)
// CHECK:STDOUT: !55 = !{!56}
// CHECK:STDOUT: !56 = !DILocalVariable(arg: 1, scope: !54, type: !17)
// CHECK:STDOUT: !57 = !DILocation(line: 30, column: 3, scope: !54)
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