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Add support for f16, f64, f128. (#5952)

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Generalize the f64 support to support other sizes. Also provide interop
support for `float`, `_Float16`, and `__float128`.

Also lay some groundwork for non-standard floating-point types, though
we don't have any syntax to name them yet.
This commit is contained in:
Richard Smith
2025-08-14 01:14:40 +00:00
committed by GitHub
parent cfe5599144
commit b851e8c423
27 changed files with 826 additions and 379 deletions
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toolchain/check/testdata/interop/cpp/function/param_unsupported.carbon
Vendored
+14 -14
View File
@@ -16,7 +16,7 @@
// --- unsupported_primitive_type.h
auto foo(float a) -> void;
auto foo(_BitInt(23) a) -> void;
// --- fail_todo_import_unsupported_primitive_type.carbon
@@ -26,14 +26,14 @@ import Cpp library "unsupported_primitive_type.h";
fn F() {
//@dump-sem-ir-begin
// CHECK:STDERR: fail_todo_import_unsupported_primitive_type.carbon:[[@LINE+7]]:3: error: semantics TODO: `Unsupported: parameter type: float` [SemanticsTodo]
// CHECK:STDERR: Cpp.foo(1.1);
// CHECK:STDERR: fail_todo_import_unsupported_primitive_type.carbon:[[@LINE+7]]:3: error: semantics TODO: `Unsupported: parameter type: _BitInt(23)` [SemanticsTodo]
// CHECK:STDERR: Cpp.foo(11);
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_todo_import_unsupported_primitive_type.carbon:[[@LINE+4]]:3: note: in `Cpp` name lookup for `foo` [InCppNameLookup]
// CHECK:STDERR: Cpp.foo(1.1);
// CHECK:STDERR: Cpp.foo(11);
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
Cpp.foo(1.1);
Cpp.foo(11);
//@dump-sem-ir-end
}
@@ -43,7 +43,7 @@ fn F() {
// --- unsupported_primitive_type_among_params.h
auto foo(int a, float b) -> void;
auto foo(int a, _BitInt(23) b) -> void;
// --- fail_todo_import_unsupported_primitive_type_among_params.carbon
@@ -53,21 +53,21 @@ import Cpp library "unsupported_primitive_type_among_params.h";
fn F() {
//@dump-sem-ir-begin
// CHECK:STDERR: fail_todo_import_unsupported_primitive_type_among_params.carbon:[[@LINE+7]]:3: error: semantics TODO: `Unsupported: parameter type: float` [SemanticsTodo]
// CHECK:STDERR: Cpp.foo(1, 2.0);
// CHECK:STDERR: fail_todo_import_unsupported_primitive_type_among_params.carbon:[[@LINE+7]]:3: error: semantics TODO: `Unsupported: parameter type: _BitInt(23)` [SemanticsTodo]
// CHECK:STDERR: Cpp.foo(1, 20);
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_todo_import_unsupported_primitive_type_among_params.carbon:[[@LINE+4]]:3: note: in `Cpp` name lookup for `foo` [InCppNameLookup]
// CHECK:STDERR: Cpp.foo(1, 2.0);
// CHECK:STDERR: Cpp.foo(1, 20);
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
Cpp.foo(1, 2.0);
Cpp.foo(1, 20);
//@dump-sem-ir-end
}
// CHECK:STDOUT: --- fail_todo_import_unsupported_primitive_type.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %float: Core.FloatLiteral = float_literal_value 11e-1 [concrete]
// CHECK:STDOUT: %int_11: Core.IntLiteral = int_value 11 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
@@ -81,7 +81,7 @@ fn F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: <error> = name_ref foo, <error> [concrete = <error>]
// CHECK:STDOUT: %float: Core.FloatLiteral = float_literal_value 11e-1 [concrete = constants.%float]
// CHECK:STDOUT: %int_11: Core.IntLiteral = int_value 11 [concrete = constants.%int_11]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
@@ -89,7 +89,7 @@ fn F() {
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %float: Core.FloatLiteral = float_literal_value 20e-1 [concrete]
// CHECK:STDOUT: %int_20: Core.IntLiteral = int_value 20 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
@@ -104,7 +104,7 @@ fn F() {
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: <error> = name_ref foo, <error> [concrete = <error>]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
// CHECK:STDOUT: %float: Core.FloatLiteral = float_literal_value 20e-1 [concrete = constants.%float]
// CHECK:STDOUT: %int_20: Core.IntLiteral = int_value 20 [concrete = constants.%int_20]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: