mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-30 14:45:00 +01:00
Jon Ross-Perkins
91f0c23124
Building on #3636 which handles the general import case, add special casing for namespaces. Namespaces can be combined cross-IR, so it's a little more complex. The implementation adds import_id to the Namespace instruction as a reference to find the original using the normal structure. This is achieved by moving the name_id to NameScope to free up space. --- I considered a few alternatives... I considered adding import_id to NameScope, but: 1. It's more consistent with things such as Function or Class that provide name_id on the info object rather than the instruction. 2. I thought it more likely that there would be more NameScope cases that might want a name_id rather than the import_id, since ImportRef will typically be used. I considered putting the import source (cross-ref IR id + inst id) on the NameScope versus a separate ImportRef, which seems like the strongest argument towards the NameScope approach because it removes an instruction. That just felt inconsistent though, and the overhead of instruction-per-imported-namespace should be low (theoretically few namespaces should be used). Plus I feel a bit odd adding two generally-unused ids to NameScope. A specialized Namespace structure could also have been created to store the import_id, but that would add an indirection to the NameScope.
151 lines
6.0 KiB
Plaintext
151 lines
6.0 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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fn A() -> bool;
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fn B() -> bool;
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fn C() -> bool;
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fn D() -> bool;
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fn E() -> bool;
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fn F() -> bool;
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fn G() -> bool;
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fn H() -> bool;
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fn While() {
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while (A()) {
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if (B()) { continue; }
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if (C()) { break; }
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while (D()) {
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if (E()) { continue; }
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if (F()) { break; }
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}
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if (G()) { continue; }
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if (H()) { break; }
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}
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}
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// CHECK:STDOUT: --- break_continue.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace {.A = %A, .B = %B, .C = %C, .D = %D, .E = %E, .F = %F, .G = %G, .H = %H, .While = %While} [template]
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// CHECK:STDOUT: %A: <function> = fn_decl @A [template]
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// CHECK:STDOUT: %B: <function> = fn_decl @B [template]
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// CHECK:STDOUT: %C: <function> = fn_decl @C [template]
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// CHECK:STDOUT: %D: <function> = fn_decl @D [template]
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// CHECK:STDOUT: %E: <function> = fn_decl @E [template]
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// CHECK:STDOUT: %F: <function> = fn_decl @F [template]
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// CHECK:STDOUT: %G: <function> = fn_decl @G [template]
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// CHECK:STDOUT: %H: <function> = fn_decl @H [template]
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// CHECK:STDOUT: %While: <function> = fn_decl @While [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @A() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @B() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @C() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @D() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @E() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @G() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @H() -> bool;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @While() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: br !while.cond.loc17
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// CHECK:STDOUT:
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// CHECK:STDOUT: !while.cond.loc17:
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// CHECK:STDOUT: %A.ref: <function> = name_ref A, file.%A [template = file.%A]
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// CHECK:STDOUT: %.loc17_11.1: init bool = call %A.ref()
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// CHECK:STDOUT: %.loc17_13: bool = value_of_initializer %.loc17_11.1
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// CHECK:STDOUT: %.loc17_11.2: bool = converted %.loc17_11.1, %.loc17_13
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// CHECK:STDOUT: if %.loc17_11.2 br !while.body.loc17 else br !while.done.loc17
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// CHECK:STDOUT:
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// CHECK:STDOUT: !while.body.loc17:
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// CHECK:STDOUT: %B.ref: <function> = name_ref B, file.%B [template = file.%B]
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// CHECK:STDOUT: %.loc18_10.1: init bool = call %B.ref()
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// CHECK:STDOUT: %.loc18_12: bool = value_of_initializer %.loc18_10.1
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// CHECK:STDOUT: %.loc18_10.2: bool = converted %.loc18_10.1, %.loc18_12
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// CHECK:STDOUT: if %.loc18_10.2 br !if.then.loc18 else br !if.else.loc18
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then.loc18:
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// CHECK:STDOUT: br !while.cond.loc17
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else.loc18:
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// CHECK:STDOUT: %C.ref: <function> = name_ref C, file.%C [template = file.%C]
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// CHECK:STDOUT: %.loc19_10.1: init bool = call %C.ref()
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// CHECK:STDOUT: %.loc19_12: bool = value_of_initializer %.loc19_10.1
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// CHECK:STDOUT: %.loc19_10.2: bool = converted %.loc19_10.1, %.loc19_12
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// CHECK:STDOUT: if %.loc19_10.2 br !if.then.loc19 else br !if.else.loc19
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then.loc19:
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// CHECK:STDOUT: br !while.done.loc17
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else.loc19:
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// CHECK:STDOUT: br !while.cond.loc20
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// CHECK:STDOUT:
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// CHECK:STDOUT: !while.cond.loc20:
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// CHECK:STDOUT: %D.ref: <function> = name_ref D, file.%D [template = file.%D]
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// CHECK:STDOUT: %.loc20_13.1: init bool = call %D.ref()
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// CHECK:STDOUT: %.loc20_15: bool = value_of_initializer %.loc20_13.1
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// CHECK:STDOUT: %.loc20_13.2: bool = converted %.loc20_13.1, %.loc20_15
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// CHECK:STDOUT: if %.loc20_13.2 br !while.body.loc20 else br !while.done.loc20
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// CHECK:STDOUT:
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// CHECK:STDOUT: !while.body.loc20:
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// CHECK:STDOUT: %E.ref: <function> = name_ref E, file.%E [template = file.%E]
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// CHECK:STDOUT: %.loc21_12.1: init bool = call %E.ref()
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// CHECK:STDOUT: %.loc21_14: bool = value_of_initializer %.loc21_12.1
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// CHECK:STDOUT: %.loc21_12.2: bool = converted %.loc21_12.1, %.loc21_14
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// CHECK:STDOUT: if %.loc21_12.2 br !if.then.loc21 else br !if.else.loc21
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then.loc21:
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// CHECK:STDOUT: br !while.cond.loc20
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else.loc21:
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// CHECK:STDOUT: %F.ref: <function> = name_ref F, file.%F [template = file.%F]
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// CHECK:STDOUT: %.loc22_12.1: init bool = call %F.ref()
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// CHECK:STDOUT: %.loc22_14: bool = value_of_initializer %.loc22_12.1
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// CHECK:STDOUT: %.loc22_12.2: bool = converted %.loc22_12.1, %.loc22_14
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// CHECK:STDOUT: if %.loc22_12.2 br !if.then.loc22 else br !if.else.loc22
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then.loc22:
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// CHECK:STDOUT: br !while.done.loc20
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else.loc22:
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// CHECK:STDOUT: br !while.cond.loc20
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// CHECK:STDOUT:
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// CHECK:STDOUT: !while.done.loc20:
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// CHECK:STDOUT: %G.ref: <function> = name_ref G, file.%G [template = file.%G]
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// CHECK:STDOUT: %.loc24_10.1: init bool = call %G.ref()
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// CHECK:STDOUT: %.loc24_12: bool = value_of_initializer %.loc24_10.1
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// CHECK:STDOUT: %.loc24_10.2: bool = converted %.loc24_10.1, %.loc24_12
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// CHECK:STDOUT: if %.loc24_10.2 br !if.then.loc24 else br !if.else.loc24
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then.loc24:
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// CHECK:STDOUT: br !while.cond.loc17
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else.loc24:
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// CHECK:STDOUT: %H.ref: <function> = name_ref H, file.%H [template = file.%H]
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// CHECK:STDOUT: %.loc25_10.1: init bool = call %H.ref()
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// CHECK:STDOUT: %.loc25_12: bool = value_of_initializer %.loc25_10.1
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// CHECK:STDOUT: %.loc25_10.2: bool = converted %.loc25_10.1, %.loc25_12
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// CHECK:STDOUT: if %.loc25_10.2 br !if.then.loc25 else br !if.else.loc25
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then.loc25:
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// CHECK:STDOUT: br !while.done.loc17
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else.loc25:
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// CHECK:STDOUT: br !while.cond.loc17
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// CHECK:STDOUT:
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// CHECK:STDOUT: !while.done.loc17:
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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