mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-03 22:02:51 +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.
92 lines
2.8 KiB
Plaintext
92 lines
2.8 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 If1(b: bool) -> i32 {
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if (b) {
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return 1;
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} else {
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}
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// CHECK:STDERR: fail_reachable_fallthrough.carbon:[[@LINE+3]]:1: ERROR: Missing `return` at end of function with declared return type.
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// CHECK:STDERR: }
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// CHECK:STDERR: ^
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}
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fn If2(b: bool) -> i32 {
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if (b) {
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} else {
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return 2;
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}
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// CHECK:STDERR: fail_reachable_fallthrough.carbon:[[@LINE+3]]:1: ERROR: Missing `return` at end of function with declared return type.
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// CHECK:STDERR: }
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// CHECK:STDERR: ^
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}
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fn If3(b: bool) -> i32 {
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if (b) {
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return 1;
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}
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// CHECK:STDERR: fail_reachable_fallthrough.carbon:[[@LINE+3]]:1: ERROR: Missing `return` at end of function with declared return type.
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// CHECK:STDERR: }
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// CHECK:STDERR: ^
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}
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// CHECK:STDOUT: --- fail_reachable_fallthrough.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %.1: i32 = int_literal 1 [template]
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// CHECK:STDOUT: %.2: i32 = int_literal 2 [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, {.If1 = %If1, .If2 = %If2, .If3 = %If3} [template]
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// CHECK:STDOUT: %If1: <function> = fn_decl @If1 [template]
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// CHECK:STDOUT: %If2: <function> = fn_decl @If2 [template]
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// CHECK:STDOUT: %If3: <function> = fn_decl @If3 [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @If1(%b: bool) -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %b.ref: bool = name_ref b, %b
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// CHECK:STDOUT: if %b.ref 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: %.loc9: i32 = int_literal 1 [template = constants.%.1]
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// CHECK:STDOUT: return %.loc9
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else:
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// CHECK:STDOUT: br !if.done
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.done:
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @If2(%b: bool) -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %b.ref: bool = name_ref b, %b
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// CHECK:STDOUT: if %b.ref 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: br !if.done
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else:
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// CHECK:STDOUT: %.loc20: i32 = int_literal 2 [template = constants.%.2]
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// CHECK:STDOUT: return %.loc20
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.done:
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @If3(%b: bool) -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %b.ref: bool = name_ref b, %b
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// CHECK:STDOUT: if %b.ref 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: %.loc29: i32 = int_literal 1 [template = constants.%.1]
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// CHECK:STDOUT: return %.loc29
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else:
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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