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carbon-lang/toolchain/check/testdata/builtins/float/mul.carbon
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Richard Smith 23f9065949 Implement proposal #3927. (#3963) 
Change syntax for package declaration to put the `impl` keyword at the
start and remove the `api` keyword.

To support this, rearrange processing of package, library, and import
declarations to use the general modifier handling support in declaration
parsing rather than special-case logic.

There is an ambiguity in `impl package.Foo as Bar`, which we resolve by
treating `package` as an introducer after a modifier only if it's not
followed by `.`.
2024-05-21 00:36:03 +00:00

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// 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
//
// AUTOUPDATE
// --- mul_sub.carbon
fn Mul(a: f64, b: f64) -> f64 = "float.mul";
fn RuntimeCall(a: f64, b: f64) -> f64 {
return Mul(a, b);
}
var x: f64 = Mul(2.0, 0.5);
// --- fail_bad_decl.carbon
package FailBadDecl;
// CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+4]]:1: ERROR: Invalid signature for builtin function "float.mul".
// CHECK:STDERR: fn TooFew(a: f64) -> f64 = "float.mul";
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
fn TooFew(a: f64) -> f64 = "float.mul";
// CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+4]]:1: ERROR: Invalid signature for builtin function "float.mul".
// CHECK:STDERR: fn TooMany(a: f64, b: f64, c: f64) -> f64 = "float.mul";
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
fn TooMany(a: f64, b: f64, c: f64) -> f64 = "float.mul";
// CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+3]]:1: ERROR: Invalid signature for builtin function "float.mul".
// CHECK:STDERR: fn BadReturnType(a: f64, b: f64) -> bool = "float.mul";
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fn BadReturnType(a: f64, b: f64) -> bool = "float.mul";
fn JustRight(a: f64, b: f64) -> f64 = "float.mul";
fn RuntimeCallTooFew(a: f64) -> f64 {
return TooFew(a);
}
fn RuntimeCallTooMany(a: f64, b: f64, c: f64) -> f64 {
return TooMany(a, b, c);
}
fn RuntimeCallBadReturnType(a: f64, b: f64) -> bool {
return BadReturnType(a, b);
}
// CHECK:STDOUT: --- mul_sub.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Mul: type = fn_type @Mul [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %struct.1: Mul = struct_value () [template]
// CHECK:STDOUT: %RuntimeCall: type = fn_type @RuntimeCall [template]
// CHECK:STDOUT: %struct.2: RuntimeCall = struct_value () [template]
// CHECK:STDOUT: %.2: f64 = float_literal 2 [template]
// CHECK:STDOUT: %.3: f64 = float_literal 0.5 [template]
// CHECK:STDOUT: %.4: f64 = float_literal 1 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = %Core
// CHECK:STDOUT: .Mul = %Mul.decl
// CHECK:STDOUT: .RuntimeCall = %RuntimeCall.decl
// CHECK:STDOUT: .x = %x
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core: <namespace> = namespace [template] {}
// CHECK:STDOUT: %Mul.decl: Mul = fn_decl @Mul [template = constants.%struct.1] {
// CHECK:STDOUT: %a.loc2_8.1: f64 = param a
// CHECK:STDOUT: @Mul.%a: f64 = bind_name a, %a.loc2_8.1
// CHECK:STDOUT: %b.loc2_16.1: f64 = param b
// CHECK:STDOUT: @Mul.%b: f64 = bind_name b, %b.loc2_16.1
// CHECK:STDOUT: @Mul.%return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %RuntimeCall.decl: RuntimeCall = fn_decl @RuntimeCall [template = constants.%struct.2] {
// CHECK:STDOUT: %a.loc4_16.1: f64 = param a
// CHECK:STDOUT: @RuntimeCall.%a: f64 = bind_name a, %a.loc4_16.1
// CHECK:STDOUT: %b.loc4_24.1: f64 = param b
// CHECK:STDOUT: @RuntimeCall.%b: f64 = bind_name b, %b.loc4_24.1
// CHECK:STDOUT: @RuntimeCall.%return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %x.var: ref f64 = var x
// CHECK:STDOUT: %x: ref f64 = bind_name x, %x.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Mul(%a: f64, %b: f64) -> f64 = "float.mul";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @RuntimeCall(%a: f64, %b: f64) -> f64 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Mul.ref: Mul = name_ref Mul, file.%Mul.decl [template = constants.%struct.1]
// CHECK:STDOUT: %a.ref: f64 = name_ref a, %a
// CHECK:STDOUT: %b.ref: f64 = name_ref b, %b
// CHECK:STDOUT: %float.mul: init f64 = call %Mul.ref(%a.ref, %b.ref)
// CHECK:STDOUT: %.loc5_19.1: f64 = value_of_initializer %float.mul
// CHECK:STDOUT: %.loc5_19.2: f64 = converted %float.mul, %.loc5_19.1
// CHECK:STDOUT: return %.loc5_19.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Mul.ref: Mul = name_ref Mul, file.%Mul.decl [template = constants.%struct.1]
// CHECK:STDOUT: %.loc8_18: f64 = float_literal 2 [template = constants.%.2]
// CHECK:STDOUT: %.loc8_23: f64 = float_literal 0.5 [template = constants.%.3]
// CHECK:STDOUT: %float.mul: init f64 = call %Mul.ref(%.loc8_18, %.loc8_23) [template = constants.%.4]
// CHECK:STDOUT: assign file.%x.var, %float.mul
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_bad_decl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TooFew: type = fn_type @TooFew [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %struct.1: TooFew = struct_value () [template]
// CHECK:STDOUT: %TooMany: type = fn_type @TooMany [template]
// CHECK:STDOUT: %struct.2: TooMany = struct_value () [template]
// CHECK:STDOUT: %BadReturnType: type = fn_type @BadReturnType [template]
// CHECK:STDOUT: %struct.3: BadReturnType = struct_value () [template]
// CHECK:STDOUT: %JustRight: type = fn_type @JustRight [template]
// CHECK:STDOUT: %struct.4: JustRight = struct_value () [template]
// CHECK:STDOUT: %RuntimeCallTooFew: type = fn_type @RuntimeCallTooFew [template]
// CHECK:STDOUT: %struct.5: RuntimeCallTooFew = struct_value () [template]
// CHECK:STDOUT: %RuntimeCallTooMany: type = fn_type @RuntimeCallTooMany [template]
// CHECK:STDOUT: %struct.6: RuntimeCallTooMany = struct_value () [template]
// CHECK:STDOUT: %RuntimeCallBadReturnType: type = fn_type @RuntimeCallBadReturnType [template]
// CHECK:STDOUT: %struct.7: RuntimeCallBadReturnType = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = %Core
// CHECK:STDOUT: .TooFew = %TooFew.decl
// CHECK:STDOUT: .TooMany = %TooMany.decl
// CHECK:STDOUT: .BadReturnType = %BadReturnType.decl
// CHECK:STDOUT: .JustRight = %JustRight.decl
// CHECK:STDOUT: .RuntimeCallTooFew = %RuntimeCallTooFew.decl
// CHECK:STDOUT: .RuntimeCallTooMany = %RuntimeCallTooMany.decl
// CHECK:STDOUT: .RuntimeCallBadReturnType = %RuntimeCallBadReturnType.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core: <namespace> = namespace [template] {}
// CHECK:STDOUT: %TooFew.decl: TooFew = fn_decl @TooFew [template = constants.%struct.1] {
// CHECK:STDOUT: %a.loc8_11.1: f64 = param a
// CHECK:STDOUT: @TooFew.%a: f64 = bind_name a, %a.loc8_11.1
// CHECK:STDOUT: @TooFew.%return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %TooMany.decl: TooMany = fn_decl @TooMany [template = constants.%struct.2] {
// CHECK:STDOUT: %a.loc13_12.1: f64 = param a
// CHECK:STDOUT: @TooMany.%a: f64 = bind_name a, %a.loc13_12.1
// CHECK:STDOUT: %b.loc13_20.1: f64 = param b
// CHECK:STDOUT: @TooMany.%b: f64 = bind_name b, %b.loc13_20.1
// CHECK:STDOUT: %c.loc13_28.1: f64 = param c
// CHECK:STDOUT: @TooMany.%c: f64 = bind_name c, %c.loc13_28.1
// CHECK:STDOUT: @TooMany.%return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %BadReturnType.decl: BadReturnType = fn_decl @BadReturnType [template = constants.%struct.3] {
// CHECK:STDOUT: %a.loc17_18.1: f64 = param a
// CHECK:STDOUT: @BadReturnType.%a: f64 = bind_name a, %a.loc17_18.1
// CHECK:STDOUT: %b.loc17_26.1: f64 = param b
// CHECK:STDOUT: @BadReturnType.%b: f64 = bind_name b, %b.loc17_26.1
// CHECK:STDOUT: @BadReturnType.%return: ref bool = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %JustRight.decl: JustRight = fn_decl @JustRight [template = constants.%struct.4] {
// CHECK:STDOUT: %a.loc18_14.1: f64 = param a
// CHECK:STDOUT: @JustRight.%a: f64 = bind_name a, %a.loc18_14.1
// CHECK:STDOUT: %b.loc18_22.1: f64 = param b
// CHECK:STDOUT: @JustRight.%b: f64 = bind_name b, %b.loc18_22.1
// CHECK:STDOUT: @JustRight.%return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %RuntimeCallTooFew.decl: RuntimeCallTooFew = fn_decl @RuntimeCallTooFew [template = constants.%struct.5] {
// CHECK:STDOUT: %a.loc20_22.1: f64 = param a
// CHECK:STDOUT: @RuntimeCallTooFew.%a: f64 = bind_name a, %a.loc20_22.1
// CHECK:STDOUT: @RuntimeCallTooFew.%return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %RuntimeCallTooMany.decl: RuntimeCallTooMany = fn_decl @RuntimeCallTooMany [template = constants.%struct.6] {
// CHECK:STDOUT: %a.loc24_23.1: f64 = param a
// CHECK:STDOUT: @RuntimeCallTooMany.%a: f64 = bind_name a, %a.loc24_23.1
// CHECK:STDOUT: %b.loc24_31.1: f64 = param b
// CHECK:STDOUT: @RuntimeCallTooMany.%b: f64 = bind_name b, %b.loc24_31.1
// CHECK:STDOUT: %c.loc24_39.1: f64 = param c
// CHECK:STDOUT: @RuntimeCallTooMany.%c: f64 = bind_name c, %c.loc24_39.1
// CHECK:STDOUT: @RuntimeCallTooMany.%return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %RuntimeCallBadReturnType.decl: RuntimeCallBadReturnType = fn_decl @RuntimeCallBadReturnType [template = constants.%struct.7] {
// CHECK:STDOUT: %a.loc28_29.1: f64 = param a
// CHECK:STDOUT: @RuntimeCallBadReturnType.%a: f64 = bind_name a, %a.loc28_29.1
// CHECK:STDOUT: %b.loc28_37.1: f64 = param b
// CHECK:STDOUT: @RuntimeCallBadReturnType.%b: f64 = bind_name b, %b.loc28_37.1
// CHECK:STDOUT: @RuntimeCallBadReturnType.%return: ref bool = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @TooFew(%a: f64) -> f64;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @TooMany(%a: f64, %b: f64, %c: f64) -> f64;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @BadReturnType(%a: f64, %b: f64) -> bool;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @JustRight(%a: f64, %b: f64) -> f64 = "float.mul";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @RuntimeCallTooFew(%a: f64) -> f64 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %TooFew.ref: TooFew = name_ref TooFew, file.%TooFew.decl [template = constants.%struct.1]
// CHECK:STDOUT: %a.ref: f64 = name_ref a, %a
// CHECK:STDOUT: %TooFew.call: init f64 = call %TooFew.ref(%a.ref)
// CHECK:STDOUT: %.loc21_19.1: f64 = value_of_initializer %TooFew.call
// CHECK:STDOUT: %.loc21_19.2: f64 = converted %TooFew.call, %.loc21_19.1
// CHECK:STDOUT: return %.loc21_19.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @RuntimeCallTooMany(%a: f64, %b: f64, %c: f64) -> f64 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %TooMany.ref: TooMany = name_ref TooMany, file.%TooMany.decl [template = constants.%struct.2]
// CHECK:STDOUT: %a.ref: f64 = name_ref a, %a
// CHECK:STDOUT: %b.ref: f64 = name_ref b, %b
// CHECK:STDOUT: %c.ref: f64 = name_ref c, %c
// CHECK:STDOUT: %TooMany.call: init f64 = call %TooMany.ref(%a.ref, %b.ref, %c.ref)
// CHECK:STDOUT: %.loc25_26.1: f64 = value_of_initializer %TooMany.call
// CHECK:STDOUT: %.loc25_26.2: f64 = converted %TooMany.call, %.loc25_26.1
// CHECK:STDOUT: return %.loc25_26.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @RuntimeCallBadReturnType(%a: f64, %b: f64) -> bool {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %BadReturnType.ref: BadReturnType = name_ref BadReturnType, file.%BadReturnType.decl [template = constants.%struct.3]
// CHECK:STDOUT: %a.ref: f64 = name_ref a, %a
// CHECK:STDOUT: %b.ref: f64 = name_ref b, %b
// CHECK:STDOUT: %BadReturnType.call: init bool = call %BadReturnType.ref(%a.ref, %b.ref)
// CHECK:STDOUT: %.loc29_29.1: bool = value_of_initializer %BadReturnType.call
// CHECK:STDOUT: %.loc29_29.2: bool = converted %BadReturnType.call, %.loc29_29.1
// CHECK:STDOUT: return %.loc29_29.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
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