Files
carbon-lang/toolchain/check/testdata/builtins/float/negate.carbon
T
Richard Smith 05cc09daca Fix cross-package signature mismatches. (#7232)
Fixes link failures when referencing a symbol involving a fingerprint
from a different package.

Previously we included the `Namespace`'s `import_id` as part of its
fingerprint, which caused local and imported namespaces to get different
fingerprints. We now store the `import_id` on the `NameScope` instead of
on the `Namespace` inst to avoid this problem.

Also, when we reach a package-level `NameScopeId`, consistently
fingerprint it as a (package name, library name) pair. Previously the
fingerprinting depended on whether it was imported or not, as an
imported `NameScopeId` had a parent scope (the current package). We need
to include the library name here so that private entities with the same
name in different libraries have different fingerprints.
2026-05-21 00:02:29 +00:00

91 lines
3.1 KiB
Plaintext

// 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/check/testdata/builtins/float/negate.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/builtins/float/negate.carbon
// --- float_negate.carbon
library "[[@TEST_NAME]]";
fn Negate(a: f64) -> f64 = "float.negate";
fn RuntimeCallIsValid(a: f64, unused b: f64) -> f64 {
//@dump-sem-ir-begin
return Negate(a);
//@dump-sem-ir-end
}
let a: f64 = Negate(1.5);
// --- fail_too_few.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_too_few.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "float.negate" [InvalidBuiltinSignature]
// CHECK:STDERR: fn TooFew() -> f64 = "float.negate";
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
fn TooFew() -> f64 = "float.negate";
fn RuntimeCallIsValidTooFew() -> f64 {
return TooFew();
}
// --- fail_too_many.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_too_many.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "float.negate" [InvalidBuiltinSignature]
// CHECK:STDERR: fn TooMany(a: f64, b: f64) -> f64 = "float.negate";
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
fn TooMany(a: f64, b: f64) -> f64 = "float.negate";
fn RuntimeCallIsValidTooMany(a: f64, b: f64) -> f64 {
return TooMany(a, b);
}
// --- fail_bad_return_type.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_bad_return_type.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "float.negate" [InvalidBuiltinSignature]
// CHECK:STDERR: fn BadReturnType(a: f64) -> bool = "float.negate";
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
fn BadReturnType(a: f64) -> bool = "float.negate";
fn RuntimeCallIsValidBadReturnType(a: f64) -> bool {
return BadReturnType(a);
}
// CHECK:STDOUT: --- float_negate.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %int_64: Core.IntLiteral = int_value 64 [concrete]
// CHECK:STDOUT: %f64.9a0: type = class_type @Float, @Float(%int_64) [concrete]
// CHECK:STDOUT: %Negate.type: type = fn_type @Negate [concrete]
// CHECK:STDOUT: %Negate: %Negate.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @RuntimeCallIsValid(%a.param: %f64.9a0, %b.param: %f64.9a0) -> out %return.param: %f64.9a0 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Negate.ref: %Negate.type = name_ref Negate, file.%Negate.decl [concrete = constants.%Negate]
// CHECK:STDOUT: %a.ref: %f64.9a0 = name_ref a, %a
// CHECK:STDOUT: %Negate.call: init %f64.9a0 = call %Negate.ref(%a.ref)
// CHECK:STDOUT: return %Negate.call
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: