0
1
mirror of https://github.com/golang/go synced 2025-04-01 23:08:49 +00:00
Files
Joel Sing e6c2e12c63 cmd/compile/internal/ssa: optimise more branches with zero on riscv64
Optimise more branches with zero on riscv64. In particular, BLTU with
zero occurs with IsInBounds checks for index zero. This currently results
in two instructions and requires an additional register:

   li      t2, 0
   bltu    t2, t1, 0x174b4

This is equivalent to checking if the bounds is not equal to zero. With
this change:

   bnez    t1, 0x174c0

This removes more than 500 instructions from the Go binary on riscv64.

Change-Id: I6cd861d853e3ef270bd46dacecdfaa205b1c4644
Reviewed-on: https://go-review.googlesource.com/c/go/+/606715
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2025-03-28 01:27:22 -07:00
..
2024-03-25 19:21:35 +00:00
2023-01-31 19:43:07 +00:00
2023-04-11 20:56:32 +00:00
2019-09-08 17:28:20 +00:00
2023-10-06 21:01:50 +00:00
2020-11-28 02:31:54 +00:00
2019-11-01 20:13:05 +00:00
2024-04-04 14:29:45 +00:00
2018-03-01 21:11:16 +00:00
2019-09-08 17:28:20 +00:00
2021-10-06 15:53:04 +00:00

The test directory contains tests of the Go tool chain and runtime. It includes black box tests, regression tests, and error output tests. They are run as part of all.bash.

To run just these tests, execute:

../bin/go test cmd/internal/testdir

To run just tests from specified files in this directory, execute:

../bin/go test cmd/internal/testdir -run='Test/(file1.go|file2.go|...)'

Standard library tests should be written as regular Go tests in the appropriate package.

The tool chain and runtime also have regular Go tests in their packages. The main reasons to add a new test to this directory are:

  • it is most naturally expressed using the test runner; or
  • it is also applicable to gccgo and other Go tool chains.