From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- test/codegen/logic.go | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 test/codegen/logic.go (limited to 'test/codegen/logic.go') diff --git a/test/codegen/logic.go b/test/codegen/logic.go new file mode 100644 index 0000000..50ce5f0 --- /dev/null +++ b/test/codegen/logic.go @@ -0,0 +1,32 @@ +// asmcheck + +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package codegen + +var gx, gy int + +// Test to make sure that (CMPQ (ANDQ x y) [0]) does not get rewritten to +// (TESTQ x y) if the ANDQ has other uses. If that rewrite happens, then one +// of the args of the ANDQ needs to be saved so it can be used as the arg to TESTQ. +func andWithUse(x, y int) int { + // Load x,y into registers, so those MOVQ will not appear at the z := x&y line. + gx, gy = x, y + // amd64:-"MOVQ" + z := x & y + if z == 0 { + return 77 + } + // use z by returning it + return z +} + +// Verify (OR x (NOT y)) rewrites to (ORN x y) where supported +func ornot(x, y int) int { + // ppc64:"ORN" + // ppc64le:"ORN" + z := x | ^y + return z +} -- cgit v1.2.3