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Make Destroy.Op functions able to have a body (#6729)

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This is iterating on how `Destroy.Op` generates, to start adding body
capabilities. This changes the way the signature is created, and adds a
`CoreWitness` function kind so that mangling can prevent name
collisions. The result is that what _was_ `DestroyOp` is now
`Core.Destroy.Op` or, as can be seen in
toolchain/lower/testdata/interop/cpp/nullptr.carbon,
`_COp.<hash>:core.Destroy.Core` where `:core` is indicating that it's a
core witness (taking a note from `:thunk`).

Assisted-by: Google Antigravity with Gemini 3 Flash
This commit is contained in:
Jon Ross-Perkins
2026-03-02 17:57:31 +00:00
committed by GitHub
parent 2389590230
commit b14015602b
163 changed files with 2472 additions and 2339 deletions
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toolchain/lower/testdata/function/generic/call_basic_depth.carbon
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+3 -3
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@@ -50,7 +50,7 @@ fn M() -> i32 {
// CHECK:STDOUT: %.loc34 = load i32, ptr %n.var, align 4, !dbg !10
// CHECK:STDOUT: call void @_CF.Main.b88d1103f417c6d4(i32 %.loc34), !dbg !11
// CHECK:STDOUT: %.loc35_9 = load i32, ptr %n.var, align 4, !dbg !12
// CHECK:STDOUT: %G.call = call i32 @_CG.Main.329e9a7481f16207(i32 %.loc35_9), !dbg !13
// CHECK:STDOUT: %G.call = call i32 @_CG.Main.bfb441135f07cbe1(i32 %.loc35_9), !dbg !13
// CHECK:STDOUT: store i32 %G.call, ptr %m.var, align 4, !dbg !14
// CHECK:STDOUT: %.loc36 = load i32, ptr %m.var, align 4, !dbg !15
// CHECK:STDOUT: ret i32 %.loc36, !dbg !16
@@ -66,7 +66,7 @@ fn M() -> i32 {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.329e9a7481f16207(i32 %x) #0 !dbg !23 {
// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.bfb441135f07cbe1(i32 %x) #0 !dbg !23 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc25_6.3.temp = alloca i32, align 4, !dbg !28
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc25_6.3.temp), !dbg !28
@@ -115,7 +115,7 @@ fn M() -> i32 {
// CHECK:STDOUT: !20 = !{!21}
// CHECK:STDOUT: !21 = !DILocalVariable(arg: 1, scope: !17, type: !7)
// CHECK:STDOUT: !22 = !DILocation(line: 16, column: 1, scope: !17)
// CHECK:STDOUT: !23 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.329e9a7481f16207", scope: null, file: !3, line: 24, type: !24, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !26)
// CHECK:STDOUT: !23 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.bfb441135f07cbe1", scope: null, file: !3, line: 24, type: !24, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !26)
// CHECK:STDOUT: !24 = !DISubroutineType(types: !25)
// CHECK:STDOUT: !25 = !{!7, !7}
// CHECK:STDOUT: !26 = !{!27}