Files
carbon-lang/toolchain/lower/testdata/pointer/pointer_to_pointer.carbon
T
Jon Ross-Perkins 83413479d7 Move some of the test information to TIP lines (#4007)
This has is a nice-to-have for me. Frequently I want to run a specific
test, and end up digging through output to be able to copy-paste the run
line. This uses TIP lines to inject the command into the file when using
AUTOUPDATE.

Note, one of the reasons I want this is because "bazel test
//toolchain/testing:file_test --test_output=all" has been regularly
exceeding bazel's output limit for me (workaround is either opening the
output file or specifying an obscure output limit flag), making it a
little harder for me to get the commands. However, frequently I'm adding
a file and want to iterate on it, so that's really the use case I have
in mind here.
2024-06-04 17:57:23 +00:00

35 lines
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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
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/pointer/pointer_to_pointer.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/pointer/pointer_to_pointer.carbon
fn F(p: i32**) -> i32 {
var a: i32** = p;
var b: i32* = *p;
var c: i32** = &b;
return **c;
}
// CHECK:STDOUT: ; ModuleID = 'pointer_to_pointer.carbon'
// CHECK:STDOUT: source_filename = "pointer_to_pointer.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: define i32 @F(ptr %p) {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %a.var = alloca ptr, align 8
// CHECK:STDOUT: store ptr %p, ptr %a.var, align 8
// CHECK:STDOUT: %b.var = alloca ptr, align 8
// CHECK:STDOUT: %.loc13_17.2 = load ptr, ptr %p, align 8
// CHECK:STDOUT: store ptr %.loc13_17.2, ptr %b.var, align 8
// CHECK:STDOUT: %c.var = alloca ptr, align 8
// CHECK:STDOUT: store ptr %b.var, ptr %c.var, align 8
// CHECK:STDOUT: %.loc15_12 = load ptr, ptr %c.var, align 8
// CHECK:STDOUT: %.loc15_11.2 = load ptr, ptr %.loc15_12, align 8
// CHECK:STDOUT: %.loc15_10.2 = load i32, ptr %.loc15_11.2, align 4
// CHECK:STDOUT: ret i32 %.loc15_10.2
// CHECK:STDOUT: }