mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-01 22:02:45 +01:00
Richard Smith
29c294880d
Rather than producing multiple constants with the same value, fold all instances of a given constant to the same constant instruction. A future PR will use this to replace the current type canonicalization system.
68 lines
2.3 KiB
Plaintext
68 lines
2.3 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();
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namespace N;
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fn N.A();
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namespace N.M;
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fn N.M.B() -> i32 {
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// This is N.A, not package.A.
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A();
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if (true) {
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var A: i32 = 0;
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// This is the local A.
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// TODO: Decide if we should warn or error on the shadowing of N.A here.
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return A;
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}
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return 0;
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}
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// CHECK:STDOUT: --- shadow.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %.1: type = tuple_type () [template]
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// CHECK:STDOUT: %.2: bool = bool_literal true [template]
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// CHECK:STDOUT: %.3: i32 = int_literal 0 [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace package, {.A = %A.loc7, .N = %.loc9} [template]
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// CHECK:STDOUT: %A.loc7: <function> = fn_decl @A.1 [template]
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// CHECK:STDOUT: %.loc9: <namespace> = namespace N, {.A = %A.loc10, .M = %.loc12} [template]
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// CHECK:STDOUT: %A.loc10: <function> = fn_decl @A.2 [template]
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// CHECK:STDOUT: %.loc12: <namespace> = namespace M, {.B = %B} [template]
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// CHECK:STDOUT: %B: <function> = fn_decl @B [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @A.1();
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @A.2();
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @B() -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %A.ref.loc16: <function> = name_ref A, file.%A.loc10 [template = file.%A.loc10]
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// CHECK:STDOUT: %.loc16: init () = call %A.ref.loc16()
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// CHECK:STDOUT: %.loc17: bool = bool_literal true [template = constants.%.2]
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// CHECK:STDOUT: if %.loc17 br !if.then else br !if.else
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then:
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// CHECK:STDOUT: %A.var: ref i32 = var A
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// CHECK:STDOUT: %A: ref i32 = bind_name A, %A.var
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// CHECK:STDOUT: %.loc18: i32 = int_literal 0 [template = constants.%.3]
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// CHECK:STDOUT: assign %A.var, %.loc18
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// CHECK:STDOUT: %A.ref.loc21: ref i32 = name_ref A, %A
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// CHECK:STDOUT: %.loc21: i32 = bind_value %A.ref.loc21
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// CHECK:STDOUT: return %.loc21
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else:
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// CHECK:STDOUT: %.loc23: i32 = int_literal 0 [template = constants.%.3]
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// CHECK:STDOUT: return %.loc23
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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